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Businesses (627)
- Aber Elwyn Farm Elgwysfair A Churig, Carmarthenshire
- Aber Studios, printers Aberystwyth, Cardiganshire
- Aberclydan Brewery Llanon, Cardiganshire
- Abercorris Slate Quarry Co Abercorris, Merionethshire
- Aberdare Times, newspaper Aberdare, Glamorgan
- Abergavenny Chronicle, newspaper Abergavenny, Monmouthshire
- Abergynolwyn Slate & Slab Co Ltd Abergynolwyn, Merionethshire
- Aberllefenni Slate Quarry Aberllefenni, Merionethshire
- Aberpergwm Collieries Co Ltd Glyn-neath, Glamorgan
- Aberystwyth & Aberdovey Steam Packet Co Ltd Aberystwyth, Cardiganshire
- Aberystwyth & Welsh Coast Railway Co
- Aberystwyth Corn & General Market Co Ltd Aberystwyth, Cardiganshire
- Aberystwyth Gas & Coke Co Aberystwyth, Cardiganshire
- Aberystwyth Public Baths Co Ltd Aberystwyth, Cardiganshire
- Aberystwyth Savings Bank Aberystwyth, Cardiganshire
- Abraham Leach, lead mine agent Llanvirnach, Pembrokeshire
- AD and WO James, farmers, Aberpeithnant Pontrwyd, Cardiganshire
- Adam & Margaret Evans, printers Machynlleth, Merionethshire
- Alexandra Slate Co Ltd Caernarfon, Caernarfonshire
- AM Hartley, corn merchant Aberystwyth, Cardiganshire
- Anglo-Welsh Review, magazine
- Arthur Pollard, merchant Aleppo, Turkey
- Bacheiddion and Dyfngwm lead mines Bacheiddion, Montgomeryshire
- Bagillt Nonconformist Cemetery Co Bagillt, Flintshire
- Bamford and Crimble collieries Bamford, Lancashire
- Bangor & Caernarvon Railway Co Caernarfonshire;Gwynedd
- Barker, Morris & Owen, solicitors Carmarthen, Carmarthenshire
- Barry Dock & Railway Co Barry, Glamorgan
- Beaufort Arms Hotel Monmouth, Monmouthshire
- Beaufort ironworks Ebbw Vale, Monmouthshire
- Benjamin Evans, blacksmith Henllan, Cardiganshire
- Birdsall & Son Ltd, bookbinders Northampton, Northamptonshire
- Blaen Cennen Farm Gwynfe, Carmarthenshire
- Blaen Ceunant lead mine Cardiganshire;Dyfed
- Brecon & Merthyr Tydfil Junction Railway Co Brecon, Brecknockshire;Merthyr Tydfil, Glamorgan
- Brecon Savings Bank Brecon, Brecknockshire
- Brecon-Radnor Seeds Ltd Brecknockshire;Powys
- Breconshire Railway & Canal Co Brecknockshire;Powys
- British Broadcasting Corporation: Wales
- Brogden family, ironmasters Tondu, Glamorgan
- Bronfloyd Lead Mines Ltd Cardiganshire;Dyfed
- Broughton & Plas Power Coal Co Ltd Wrexham, Denbighshire
- Brymbo Silica Quarries Ltd Brymbo, Denbighshire
- Brymbo Steel Co Ltd Brymbo, Denbighshire
- Bryncoch and Esgair Mwyn lead mines Cardiganshire;Dyfed
- Bryndinas tin mine Bryndinas, Merionethshire
- Brynmawr & Blaenavon Railway Co
- Bugail Slate Co Ltd Penmachno, Caernarfonshire
- Bute Docks Co Cardiff, Glamorgan
- Bwlchgwyn Roadstone Co Bwlch Gwyn, Denbighshire
- Bwlchgwyn Silica Co Bwlch Gwyn, Denbighshire
- Bwlchyranos lead mine Bwlchyranos, Cardiganshire
- Bynea Supply Stores Bynea, Carmarthenshire
- Caermeinciau Slate Co Waenfawr, Caernarfonshire
- Cambrian Airways Ltd Rhoose, Glamorgan
- Cambrian Electrolytic Zinc Co Ltd Cardiganshire;Dyfed
- Cambrian Newspaper Co Swansea, Glamorgan
- Cambrian Railways Co Oswestry, Shropshire
- Cardiff Bay Opera House Trust Cardiff, Glamorgan
- Cardiff Printers Ltd, stationery manufacturers Cardiff, Glamorgan
- Cardiganshire Mining Co Ltd, lead mines Cardiganshire;Dyfed
- Carew limestone quarry Carew, Pembrokeshire
- Caricature Theatre Cymru Wales
- Carmarthen & Cardigan Railway Co
- Carmarthenshire Mineral Railway Carmarthenshire;Dyfed
- Carnarvon & Llanberis Railway Co Caernarfonshire;Gwynedd
- Carnarvonshire Railway Co Caernarfonshire;Gwynedd
- Cefn-Du Slate Quarry Co Waenfawr, Caernarfonshire
- CEG Fisher, barrister
- Central Wales Extension Railway Co
- Central Wales Railway Co
- Charles Ireland, merchant Cardiff, Glamorgan
- Charles Parry, solicitor Aberystwyth, Cardiganshire
- Charles Richards & Sons, solicitors Llangollen, Denbighshire
- Chester & Holyhead Railway Co
- Clydach Iron Co Llanelly, Monmouthshire
- Coed Madog slate quarry Coed Madog, Caernarfonshire
- Company of Copper Miners in England
- Conway & Llanrwst Railway Co
- Corwen & Bala Railway Co Merionethshire;Gwynedd
- Corwen Electric Light Co Ltd Corwen, Merionethshire
- Cory Bros & Co Ltd, colliery owners Cardiff, Glamorgan
- Court Grange Silver Lead Mines Co Cardiganshire;Dyfed
- Crawshay Brothers (Cyfarthfa) Ltd, iron and steel manufacturers and colliery proprietors Merthyr Tydfil, Glamorgan
- Croesor Slate Quarries Croesor, Merionethshire
- Cwm Darren lead mine Cwm Darren, Cardiganshire
- Cwm Sebon lead mine Cwm Sebon, Cardiganshire
- Cwmni Theatr Hwyl a Fflag
- Cyll, Gorn and Van lead mines Montgomeryshire;Powys
- D & T Jones, grocers Aberystwyth, Cardiganshire
- D Lloyd & Son, solicitors Lampeter, Cardiganshire
- D Oswald Davies, solicitors Dolgellau, Merionethshire
- D Thomas, chemist Cardiff, Glamorgan
- Dafydd Owen Fawr, corn merchant Trawsfynydd, Merionethshire
- Dalton, Spencer & Corbett, solicitors Cardiff, Glamorgan
- Daniel & Jenkin Griffiths, general merchants Llanrhystud, Cardiganshire
- Daniel Lewis, physician Llangeitho, Cardiganshire
- Daniel Price, solicitor Talley, Carmarthenshire
- Daniel R Davies, shoemaker Llanrhystud, Cardiganshire
- Daniel R Jones, carpenter and joiner Tyddyn Y Bwlch, Merionethshire
- David & David, land agents and surveyors Cardiff, Glamorgan
- David & Jenkin Jenkins, carpenters Pontrhydfendigaid, Cardiganshire
- David Benjamin, blacksmith Capel Seion, Cardiganshire
- David Davies, smith Pencarreg, Carmarthenshire
- David Evans, boatman and carrier Merionethshire;Gwynedd
- David Evans, farmer, Ayngstree Clifton-in-Teme, Worcestershire
- David Harries, farmer, Pembrokeshire Pembrokeshire;Dyfed
- David Hughes & Sons, tailors and drapers Aberdovey, Merionethshire
- David Hughes, bootmaker Tanygrisiau, Merionethshire
- David Jameson, maltster Oswestry, Shropshire
- David Jenkins, farmer Llanfihangel Geneu'r Glynn, Cardiganshire
- David Jonathan, farmer and drover Dihewyd, Cardiganshire
- David Jones, carpenter Llangammarch, Brecknockshire
- David Jones, grocer Bala, Merionethshire
- David Jones, tailor Lampeter, Cardiganshire
- David M Evans, hatter Cilcennin, Cardiganshire
- David Morgan, iron manufacturer Llanfihangel Geneu'r Glynn, Cardiganshire
- David Morris & Sons Carmarthen, Carmarthenshire
- David Owen & Son, threshing machine manufacturers Newtown, Montgomeryshire
- David Owen, grocer Trawsfynydd, Merionethshire
- David Owens, haulier Dolgellau, Merionethshire
- David Peate, carpenter and wheelwright Llanbryn-mair, Montgomeryshire
- David Rees, farmer, Penblodeuyn Llanilar, Cardiganshire
- David Vaughan, architect and surveyor Bonvilston, Glamorgan
- David Williams, attorney Carmarthenshire;Dyfed
- David Williams, shoemaker Tregaron, Cardiganshire
- Davies Bros Ltd, slate merchants, Porthmadog Porthmadog, Caernarfonshire
- Davies Brothers, slate merchants Porthmadog, Caernarfonshire
- Davies family, farmers Cardiganshire;Dyfed
- Dee Land Co
- Denbigh, Ruthin & Corwen Railway Co
- Denton Clark & Co, surveyors and land agents Llanidloes, Montgomeryshire
- Dinas Mawddwy Coal & Lime Co Dinas Mawddwy, Merionethshire
- Diphwys Casson Slate Co Ltd Blaenau Festiniog, Merionethshire
- Diphwys Slate Quarry Co Ltd Blaenau Festiniog, Merionethshire
- Dovey Woodlands (Coedlannau Bro Ddyfi) Ltd, co-operative forestry organisation Cardiganshire;Dyfed
- Downes Evans family, farmers Welshpool, Montgomeryshire
- DR Davies & Son Ltd, drapers and grocers Aberaeron, Cardiganshire
- DTM Jones & Co, solicitors Llandovery, Carmarthenshire
- Dulas and Fadian Copper Mine, Penegoes, Montgomeryshire
- DW Price, carpenter and undertaker Felindre, Brecknockshire
- East Darren Mines Co Ltd, lead mines Cardiganshire;Dyfed
- Eaton-Evans & Williams, solicitors Haverfordwest, Pembrokeshire
- Edward Edwards, bookbinder and seller
- Edward Ellis, auctioneer Aberystwyth, Cardiganshire
- Edward Evans, general dealer Tal-y-bont, Cardiganshire
- Edward Hughes, blacksmith Rhoscefnhir, Anglesey
- Edward Owen Dolgellau, Merionethshire
- Edward Roberts, grocer Bala, Merionethshire
- Edward Roberts, grocer and tea dealer Swansea, Glamorgan
- Edward Rumsey Williams, solicitor Caernarfon, Caernarfonshire
- Edwards family, farmers Cilgerran, Pembrokeshire
- Elizabeth Edwards, milliner Montgomeryshire;Powys
- Elliss, Pugh & Co, Rhandirmwyn lead mines Llandovery, Caernarfonshire
- Emrys Bennett Owen, auctioneer and surveyor Dolgellau, Merionethshire
- English Copper Co Aberavon, Glamorgan
- Esgair Mwyn and Fron Goch lead and silver mines Esgair Mwyn, Cardiganshire;Fron Goch, Cardiganshire
- Evan Davies, farmer Llanuwchllyn, Merionethshire
- Evan Davies, grocer Merthyr Tydfil, Glamorgan
- Evan Evans Bevan Ltd, brewers, wine and spirit merchants Pontardawe, Glamorgan;Cadoxton-juxta-Neath, Glamorgan
- Evan Hughes, butcher and farmer Trawsfynydd, Merionethshire
- Evan John & Daniel Evans, weavers Gwernogle, Carmarthenshire
- Evan Owen, farmer, Llwynygog Trefeglwys, Montgomeryshire
- Evan Vaughan, upholsterer and cabinet maker Carmarthen, Carmarthenshire
- Evan Williams, farmer, Gwyndy Tydweiliog, Caernarfonshire
- Evan Williams, grocer and coal merchant Llanfrothen, Merionethshire
- Evans & Bevan Ltd, anthracite collieries Neath, Glamorgan
- Farm West Walton, Pembrokeshire
- Farm Guilsfield, Montgomeryshire
- Farm Mostyn, Flintshire
- Farm Cardiganshire;Dyfed
- Farm Cardiganshire;Dyfed
- Farm Cardiganshire;Dyfed
- Farm and Afongoch lead mines Llanasa, Flintshire
- Felin Cwm Pandy Woollen Mill Ciliau Aeron, Cardiganshire
- Felinganol mill Llanrhystud, Cardiganshire
- Festiniog & Blaenau Railway Co Blaenau Festiniog, Merionethshire
- Festiniog Refreshment House Co Ltd Ffestiniog, Merionethshire
- Ffestiniog Slate Quarry Ltd Blaenau Festiniog, Merionethshire
- Ffrydan Woollen Factory, woollen manufacturers Bala, Merionethshire
- Ffrydd Issa Slate Company Ffrydd, Caernarfonshire
- Fishguard Harbour Improvement Co Fishguard, Pembrokeshire
- Forest Slate Quarry Cilgerran, Pembrokeshire
- Fox Hill colliery
- Frances Jones, shopkeeper Talysarn, Caernarfonshire
- Francis Brodie, writer to the signet
- Francis family, mining engineers and managers Cardiganshire;Dyfed
- Fron lead mines Fron, Flintshire
- Fron Lime Works Fron, Denbighshire
- Garnant Collieries Co Ltd Carmarthenshire;Dyfed
- Garth Farm Machynleth, Montgomeryshire
- Garthewin Theatre Llanfair Talhaiarn, Denbighshire
- Gee & Son Ltd, printers Denbigh, Denbighshire
- General merchant Caernarfon, Caernarfonshire
- General merchant Trawsfynydd, Merionethshire
- General store Mydroilin, Cardiganshire
- General store Strata Florida, Cardiganshire
- George P Lee Ltd, general warehousemen and furnishings manufacturers Manchester, Lancashire
- Geuwern Slate Quarry Geuwern, Montgomeryshire
- Glamorgan Coal Co Ltd Llwynypia, Glamorgan
- Glamorganshire Banking Co, bank Neath, Glamorgan
- Glamorganshire Canal Co Cardiff, Glamorgan
- Glanavan Forge Llanllwni, Carmarthenshire
- Gogerddan lead mines Gogerddan, Cardiganshire
- Golden Valley Railway Co Herefordshire
- Gomerian Press, printers Llandyssul, Cardiganshire
- Gould family, Acton Farm Wittersham, Kent
- Great Dyliffe Lead Mining Co Ltd Montgomeryshire;Powys
- Gregynog Press Montgomeryshire;Powys
- Gresford Colliery Co Ltd Gresford, Denbighshire
- Griffith Davies, bookseller and newsagent Ystalyfera, Glamorgan
- Griffith family, farmers Llwyndyrus, Cardiganshire
- Griffith Jones, solicitor Aberystwyth, Cardiganshire
- Griffith Owen, carpenter Aberdovey, Merionethshire
- Griffith Owen, farmer, Vaner Llanelltyd, Merionethshire
- Griffith Thomas, farmer Coedcanlass, Pembrokeshire
- Griffiths family, blacksmiths Llansawel, Carmarthenshire
- Grocer London
- Grocer Trawsfynydd, Merionethshire
- Grocer Llanuwchllyn, Merionethshire
- Gwasg Gee, publisher Denbigh, Denbighshire
- Gwasg Gomer, publisher Llandysul, Ceredigion
- Gwasg y Brython (Brython Press) Liverpool, Lancashire
- Gwern Fawr Mining Co
- Gwynne James, physician Kington, Herefordshire
- Gwynne Vaughan Bowen, farmer, Pembrokeshire Pembrokeshire;Dyfed
- H.H.Vivian and Co Ltd, brass, copper and nickel tube mfrs Birmingham, Warwickshire
- Hafod y Porth Farm Beddgelert, Caernarfonshire
- Harries family, Rhydwialchen Abergwili, Carmarthenshire
- Harry Powell, clogger Llandingat, Carmarthenshire
- Harry Ray & Co, chartered surveyors, auctioneers and valuers Welshpool, Montgomeryshire
- Haswell Brothers & Co, chartered accountants Chester, Cheshire
- Hen (Haun or Hain) Ferm colliery
- Hendre-Ddu Slate & Slab Quarry Co Ltd Merionethshire;Gwynedd
- Henry Herbert, colliery proprietor, architect Llandybie, Carmarthenshire
- Herbert Lloyd and other solicitors Carmarthenshire;Dyfed
- Hereford, Hay & Brecon Railway Co
- Hibberts, Fuhr & Purrier, West Indies merchants London
- Hirwaun furnace Hirwaun, Glamorgan
- Holyhead Shipbuilding & Trading Co Holyhead, Anglesey
- Honno: Welsh Women's Press, co-operative publishing company Wales
- Hook Colliery Co Hook, Pembrokeshire
- Hugh Davies & Co, chemists Machynlleth, Montgomeryshire
- Hugh Davies Jones, physician Mountain Ash, Glamorgan
- Hugh Evans & Sons Ltd, printers and publishers Liverpool, Lancashire
- Hugh Parry Jones, bonesetter Llanerchymedd, Anglesey
- Hughes & Son (Publishers) Ltd Wrexham, Denbighshire
- Humphrey and David Lewis, blacksmiths Bryncrug, Merionethshire
- J & M Morris Ltd, ironfounders Welshpool, Montgomeryshire
- J Rees & Sons, sawmillers Broad Oak, Carmarthenshire
- J&A Davies, solicitors Llanidloes, Montgomeryshire
- Jacob Davies, blacksmith Cynwyl Elfed, Carmarthenshire
- James family, farmers, Pwllcenawon Upper Llanbadarn-y-creuddyn, Cardiganshire
- James Griffiths, carpenter Dolau, Cardiganshire
- James James, surveyor Cardiganshire;Dyfed
- James Jones and D A Rees, blacksmiths Llannarth, Cardiganshire
- James M Child & partners, Rowe's Colliery Pembrokeshire;Dyfed
- James Phillips, ironmonger Stourbridge, Worcestershire
- James Thomas & Son, estate agents, surveyors and valuers Haverfordwest, Pembrokeshire
- JD Lloyd & Sons, monumental masons Aberaeron, Cardiganshire
- Jeffreys & Powell, solicitors Brecon, Brecknockshire
- Jeremiah Homfray & Co, ironfounders Merthyr Tydfil, Glamorgan
- John & Charles Brown, solicitors Cardiff, Glamorgan
- John and Henry Harries, astrologers and amateur physicians Cwrtycadno, Carmarthenshire
- John and Susan Davies, drapers Machynlleth, Montgomeryshire
- John Bateman, farmer, Llwynbedw Llanycefn, Pembrokeshire
- John Bonsall, solicitor Machynlleth, Montgomeryshire
- John Brooke, solicitor Bridgnorth, Shropshire
- John Charles, farmer Llanddewi Rhydderch, Monmouthshire
- John Davies, draper and grocer Aberaeron, Cardiganshire
- John Davies, printer Lampeter, Cardiganshire
- John Davies, solicitor Cardigan, Cardiganshire
- John Dovey, lawyer
- John Francis & Son, land and estate agents, auctioneers and valuers Carmarthen, Carmarthenshire
- John Harvey & Sons, estate agents, surveyors and valuers Haverfordwest, Pembrokeshire
- John Hughes, woollen manufacturer Llanuwchllyn, Merionethshire
- John James, ironmongers Monmouth, Monmouthshire
- John Jenkins, farmer, cleric and antiquary Kerry, Montgomeryshire
- John Jenkins, land and mineral surveyor etc Resolven, Glamorgan
- John Jones, cabinet maker, builder and undertaker Henllan, Cardiganshire
- John Jones, carpenter Devil's Bridge, Cardiganshire
- John Jones, farmer Atcham, Shropshire
- John Jones, farmer, Ffynnonlwyd Llanginning, Carmarthenshire
- John Jones, farmer, Ffynnowen Llangunllo, Radnorshire
- John Jones, farmer, Fro Llanfihangel Ystrad, Cardiganshire
- John Jones, farmer, Fron-wen Llangerniew, Denbighshire
- John Legonna, farmer and Welsh nationalist, Cards Cardiganshire;Dyfed
- John Lewis, bootmaker Llandybi, Carmarthenshire
- John Lloyd & Co, timber merchants Aberystwyth, Cardiganshire
- John Lloyd, attorney Denbighshire;Clwyd
- John Mills & Co (Llanidloes) Ltd, engineers and ironfounders Llanidloes, Montgomeryshire
- John Morgan & Co, iron manufacturers Carmarthen, Carmarthenshire
- John Oldbury & Henry Stanley, merchants London
- John Owen & Co, ship broker Caernarfon, Caernarfonshire
- John Philipps, solicitor Llandilo, Carmarthenshire
- John Phillips, wine merchant Haverfordwest, Pembrokeshire
- John Richard, architect and surveyor Swansea, Glamorgan
- John Roberts, solicitor Bangor, Caernarfonshire
- John Sewell, oilman and provision merchant London
- John Simon, merchant Lostwithiel, Cornwall
- John Thomas, carpenter and undertaker Dinas Cross, Pembrokeshire
- John Watkins, blacksmith Llangurig, Montgomeryshire
- John William Evans (formerly Robert Evans), small holders and keepers of Erwllan shop Lledrod, Cardiganshire
- John William Phillips, snr & jnr, solicitors Haverfordwest, Pembrokeshire
- Joiner Llandeilo, Radnorshire
- Jones & Morris, sailmakers Portmadoc, Caernarfonshire
- Jones & Morris, solicitors
- Jones family, farmers, Henblas, Caersws Llanwnnog, Montgomeryshire
- Jones, Jones & Davies, bankers Monmouth, Monmouthshire
- JT Jones, printer and publisher Aberdare, Glamorgan
- JW Thomas & Sons, printers Llandeilo, Carmarthenshire
- Kidwelly & Llanelly Canal Co Carmarthenshire;Dyfed
- Kidwelly Tin Plate Co Ltd Kidwelly, Carmarthenshire
- King's Head Hotel Newport, Monmouthshire
- Knighton Railway Co Knighton, Radnorshire
- L Griffiths, farmer Brawdy, Pembrokeshire
- Lampeter Gas Co Lampeter, Cardiganshire
- Lampeter, Aberayron & New Quay Light Railway Co Cardiganshire;Dyfed
- Lawyer Denbighshire;Clwyd
- Lawyer Herefordshire
- Lead & Zinc Concentrates Ltd Tal-y-bont, Cardiganshire
- Leighton furnace Leighton, Shropshire
- Lerry Woollen Mills Tal-y-bont, Merionethshire
- Leslie ME Lea, Glanfraed Farm Llandre, Cardiganshire
- Lewis Ambrose Williams, mineral surveyor, Cardiff Cardiff, Glamorgan
- Lewis Evans, chemist Cardigan, Cardiganshire
- Lisburne Development Syndicate Ltd, lead mining company Cardiganshire;Dyfed
- Lisburne Mines Co Ltd Cardiganshire;Dyfed
- Llandovery & District Agricultural Co-operative Society Ltd Llandovery, Carmarthenshire
- Llandovery Weighing Machine Co Llandovery, Carmarthenshire
- Llandudno New Mine Co, copper miners Caernarfonshire;Gwynedd
- Llandudno Old Copper Mine Co Caernarfonshire;Gwynedd
- Llandyssul Market Co Llandyssul, Cardiganshire
- Llanidloes Mining & Machinery Co Ltd Llanidloes, Montgomeryshire
- Llanidloes Welsh Flannel Tweed & Wool Stapling Co Llanidloes, Montgomeryshire
- Llansantffraid & Llanfyllin Coal Co Montgomeryshire;Powys
- Llanvihangel Rail Way Monmouthshire
- Lloyd, Herbert & Jones, auctioneers Aberystwyth, Cardiganshire
- Llwyngwair Estates Co Llwyngwair, Pembrokeshire
- Llwyngwern & Maglona Quarries Llwyngwern, Merionethshire
- London Assurance Corporation London
- Longueville & Co, solicitors Oswestry, Shropshire
- Loughour parish, coal mines Loughour, Glamorgan
- M Lewis, farmer and business man Carmarthen, Carmarthenshire
- Macclesfield Brewery & Wine Co Ltd Macclesfield, Cheshire
- Machen and Tredegar forges Machen, Monmouthshire
- Machynlleth Gas Co Ltd Machynlleth, Montgomeryshire
- Machynlleth Town Hall Co Ltd Machynlleth, Montgomeryshire
- Made In Wales Stage Company Cardiff, Glamorgan
- Maesmarchog Stone Coal Colliery Cadoxton-juxta-Neath, Glamorgan
- Maesnewydd Farm Tal-y-bont, Cardiganshire
- Mallum family, cider makers Speen, Berkshire
- Manchester & Milford Railway Co
- Manure merchant Cardiganshire;Dyfed
- Market Gate Farm Jeffreston, Pembrokeshire
- Melingriffith Co Ltd, tinplate and iron manufacturers Cardiff, Glamorgan
- Merchant Denbighshire;Clwyd
- Merchant London
- Merionethshire Permanent Benefit Building Society Blaenau Festiniog, Merionethshire
- Merionethshire Railway Company Merionethshire;Gwynedd
- Merthyr, Tredegar & Abergavenny Railway Co Merthyr, Carmarthenshire
- MH Davis & Son, ironmongers Aberystwyth, Cardiganshire
- Milwr Mine Co, lead mine Flintshire;Clwyd
- Minera lead mine Minera, Denbighshire
- Minera Silica Co Ltd Denbighshire;Clwyd
- Moelferna Quarries Ltd Merionethshire;Gwynedd
- Mold Railway Co Mold, Flintshire
- Monmouth Hotel Co Monmouth, Monmouthshire
- Monmouth Saw Mills Co Ltd Monmouth, Monmouthshire
- Montgomeryshire Canal Co Montgomeryshire;Powys
- Montgomeryshire Haulage Co Newtown, Montgomeryshire
- Monydd-Gorddu Lead Mine Co Ltd Cardiganshire;Dyfed
- Morgan & Sons, butchers Cardigan, Cardiganshire
- Morgan Griffiths, Prosser & Trant, solicitors Carmarthen, Carmarthenshire
- Morgan Morgans, miller Machynlleth, Montgomeryshire
- Morgan's Bank Carmarthen, Carmarthenshire
- Morris & Son, Cambrian Establishment, drapers, tailors and dressmakers Barmouth, Merionethshire
- Morris and Williams, smiths Solva, Pembrokeshire
- Morris E Morris, chemist, druggist, grocer and tea dealer Portmadoc, Caernarfonshire
- Moses Davies, auctioneers, estate agents and valuer Llanfyllin, Montgomeryshire
- Nant y Fedw Farm Betws-yn-Rhos, Denbighshire
- Nantiago Mine Ltd
- Nathaniel Phillips, sugar planter and merchant Kingston, Jamaica
- Neath Canal Navigation Co Neath, Glamorgan
- Nevill, Druce & Co, copper smelters and colliery owners Llanelli, Carmarthenshire
- New Quay Harbour Co New Quay, Cardiganshire
- New Wear forge Herefordshire
- Newman, Paynter & Co, solicitors Yeovil, Somerset
- Newtown & Machynlleth Railway Co Monmouthshire;Gwent
- No 2 Black Pins Pit Nantyglo, Monmouthshire
- North & South Wales Coal and Lime Company
- North Cheshire Brewery Co Ltd Macclesfield, Cheshire
- North Wales Employers Mutual Indemnity Co Ltd Wrexham, Denbighshire
- North Wales Quarries Ltd
- Norwich Union Fire Insurance Society Norwich, Norfolk
- O Evans-Jones & Co, printers Llanrwst, Denbighshire
- Ocean Coal Co Ltd, colliery proprietors Treorchy, Glamorgan
- Owen & Griffiths, bank Welshpool, Montgomeryshire
- Owen family, farmers, Summerhill Roch, Pembrokeshire
- Owen Thomas, smith Bethesda, Caernarfonshire
- Pantdreiniog Slate Quarry Co Ltd Llanllechid, Caernarfonshire
- Parys Mine, Amlwch, Anglesey
- Pembroke & Tenby Railway Co Pembrokeshire;Dyfed
- Pembrokeshire Iron & Coal Co Pembrokeshire;Dyfed
- Pembry Colliery Pembry, Carmarthenshire
- Penbryn & Crannog Co-operative Society Penbryn, Cardiganshire
- Penrhyn Quarries Ltd, slate quarries Bethesda, Caernarfonshire
- Penrhyndeudraeth Lead Mining Co Penrhyndeudraeth, Merionethshire
- Pen-y-Cefn Lead Mine Pen-y-cefn, Flintshire
- Pen-y-garreg tin mine Pen-y-garreg, Denbighshire
- Philipps family, coal mine owners Pembrokeshire;Dyfed
- Phillips family, farmers Tal-y-bont, Cardiganshire
- Phillips family, masons Mydrim, Carmarthenshire
- Phoenix Tinplate Co Ltd Lower Cwmtwrch, Brecknockshire
- Planet, magazine Llangeitho, Cardiganshire
- Plymouth Ironworks & Collieries Merthyr Tydfil, Glamorgan
- Pontardulais Gas Co (1930) Ltd Pontarddulais, Glamorgan
- Pontithel Chemical Co Three Cocks, Brecknockshire
- Pontnewynydd Brewery Pontnewynydd, Monmouthshire
- Pontyberem Colliery Co Ltd Pontyberem, Caernarfonshire
- Pontypool Iron & Tinplate Co Pontypool, Monmouthshire
- Porthamal Lime Works Brecknockshire;Powys
- Powell Brothers Ltd, mechanical engineers Wrexham, Denbighshire
- Powles & Tyler, solicitors Monmouth, Monmouthshire
- Precelly Green & Rustic Slate Co Portmadoc, Caernarfonshire
- Preselly Slate Quarry Pembrokeshire;Dyfed
- Provision merchant London
- Provision merchant London
- Pughe & Jones, solicitors Llanfyllin, Montgomeryshire
- Pwllcarn Colliery Co
- Pwllcenawon Farm Penllwyn, Cardiganshire
- Quarry Pembrokeshire;Dyfed
- R Daniel, farmer Llandderfel, Merionethshire
- R Phillips, solicitor Shropshire;Shropshire
- Randall & Co, solicitors Bridgend, Glamorgan
- Ratgoed & Cymerau Quarries Talyllyn, Merionethshire
- Rees Evans, carpenter Glanaman, Carmarthenshire
- Rees Jenkins, farmer Glyncorrwg, Glamorgan
- Rees Lewis, printer and publisher Merthyr Tydfil, Glamorgan
- Resolven colliery Resolven, Glamorgan
- Rev Hugh Lloyd, farmer Mold, Flintshire
- RG Bennet, printer Aberystwyth, Cardiganshire
- RH Williams Associates, architects Caernarfon, Caernarfonshire
- Rheidol Mining Co Ltd Aberystwyth, Cardiganshire
- Rhiwarth and Llanygog slate quarries Rhiwarth, Montgomeryshire
- Rhiwbach Slate Quarry Blaenau Festiniog, Merionethshire
- Rhondda & Swansea Bay Railway Co Swansea, Glamorgan
- Rhoswydol lead mine Rhoswydol, Montgomeryshire
- Rhys Hughes, draper Lampeter, Cardiganshire
- Richard Ashton, carpenter and wheelwright Aberhosan, Montgomeryshire
- Richard Emrys Bonsall, architect Aberystwyth, Cardiganshire
- Richard Hart Davies, farmer, Cardiganshire Cardiganshire;Dyfed
- Richard Jones, builder and wheelwright Llanwnda, Caernarfonshire
- Richard Owen, ironmonger, coach builder, joiner and undertaker Glasmor, Denbighshire
- Richard Roberts & Sons, timber merchants Aberystwyth, Cardiganshire
- RK Lucas & Son, land and estate agent and valuer Haverfordwest, Pembrokeshire
- Robert Owen, auctioneer and valuer Welshpool, Montgomeryshire
- Robert Owen, blacksmith Trawsfynydd, Merionethshire
- Roberts & Evans, solicitors, Aberystwyth Aberystwyth, Cardiganshire
- Roderick Richard and Roderick Rees, glovers Llanbadarn Fawr, Cardiganshire
- Roderick Roderick, drover
- Roger Jones, attorney Talgarth, Brecknockshire
- Rowland Jones, barrister
- Roy Evans & Jones, solicitors Newcastle Emlyn, Carmarthenshire
- Ruabon Coal & Coke Co Wrexham, Denbighshire
- Ruabon furnace and Pont y Blew forge Ruabon, Denbighshire
- Rupert Dovey, solicitor Stourbridge, Worcestershire
- Saddler Cardigan, Cardiganshire
- Samuel Williams, printers, stationers and booksellers Aberystwyth, Cardiganshire
- Samuel Williams, ship broker Liverpool, Lancashire
- Sayce & Sons, butchers Welshpool, Montgomeryshire
- Seed merchant Flintshire;Clwyd
- Sheinton forge Sheinton, Shropshire
- Ship chandler and lime merchant Cardigan, Cardiganshire
- Shipper Caernarfonshire;Gwynedd
- Shoemaker Corwen, Merionethshire
- Shoemaker Melibyrhedyn, Montgomeryshire
- Shoemaker Trawsfynydd, Merionethshire
- Shopkeeper Cardigan, Cardiganshire
- Shopkeeper Pennant, Montgomeryshire
- Shopkeeper Gartheli, Cardiganshire
- Shopkeeper Welshpool, Montgomeryshire
- Shopkeeper New Quay, Cardiganshire
- Shopkeeper Llandyssul, Cardiganshire
- Shrewsbury & Welshpool Railway Co
- Shropshire Union Railway & Canal Co Shropshire;Shropshire
- Simons family, solicitors Merthyr Tydfil, Glamorgan
- Siop y Jones Llandyssul, Cardiganshire
- Sirhowy Railway Co Sirhowy, Monmouthshire
- Snell & Sons, music publishers Swansea, Glamorgan
- Snowdon Slate Quarries Ltd Caernarfonshire;Gwynedd
- Solicitor Pembrokeshire;Dyfed
- South Cardiganshire Lead Mining Co Cardiganshire;Dyfed
- South Darren Lead Mining Co Aberystwyth, Cardiganshire
- South Hafod Mining Co, lead miners Cardiganshire;Dyfed
- South Plynlymon lead mine South Plynlymon, Cardiganshire
- South Wales Railway Co
- SP Davies & Sons, ironmongers, seedsmen Llanidloes, Montgomeryshire
- Stonemason Cardiganshire;Dyfed
- Super Furry Animals, rock band
- Swansea Old Brewery & Davies (Cardigan) Bonded Stores Ltd Cardigan, Cardiganshire
- Swansea Vale Railway Co Swansea, Glamorgan
- Swansea Valley Canal
- T Simpson Jones, barrister Montgomeryshire;Powys
- Tabernacle Penny Savings Bank Liverpool, Lancashire
- Talybont Lead Mine Tal-y-bont, Cardiganshire
- Talyllyn Railway Co Towyn, Merionethshire
- Tanyrallt Lead Mine Cardiganshire;Dyfed
- Television Wales & The West Ltd London
- Tenby & Begelly Coal Co Tenby, Pembrokeshire
- The Amalgamated Anthracite Collieries Ltd Llandebie, Carmarthenshire
- The Welsh Outlook
- Thomas Davies Jones, solicitor
- Thomas Dyke, grocer Monmouth, Monmouthshire
- Thomas Edmund Marsh, solicitor Llanidloes, Montgomeryshire
- Thomas Edwards, farmer and timber grower Flintshire;Clwyd
- Thomas Evans, draper and general merchant Llanarth, Cardiganshire
- Thomas family, grocers, drapers & chemists Machynlleth, Montgomeryshire
- Thomas Hope, innkeeper and carpenter Rhayader, Radnorshire
- Thomas Jenkins, cabinet maker Llandeilo, Carmarthenshire
- Thomas Jenkins, monumental mason Glen View, Cardiganshire
- Thomas Johnes, solicitor Welshpool, Montgomeryshire
- Thomas Jones, blacksmith Caerwedros, Cardiganshire
- Thomas Jones, weaver Bronant, Cardiganshire
- Thomas Lloyd, farmer Alltycadno, Carmarthenshire
- Thomas Melinddwr Davies, weaver Llansawel, Carmarthenshire
- Thomas Morgan, solicitor Cardigan, Cardiganshire
- Thomas Price, hosier and yarn and flannel manufacturer Llanrhystud, Cardiganshire
- Thomas Rees, general merchant Llanfihangel ar Arth, Carmarthenshire
- Thomas Richards, grocer Pontrhydfendigaid, Cardiganshire
- Thomas Sandys, draper London
- Thomas Thomas, tailor Llanarthne, Carmarthenshire
- Thomas Williams, mason and foreman Aberystwyth, Cardiganshire
- Tivyside Advertiser, newspaper Cardigan, Cardiganshire
- Tom Lloyd-Roberts, antiquarian bookseller Caerwys, Flintshire
- Towyn Co, slate mines Towyn, Merionethshire
- Tredegar Iron & Coal Co Ltd, colliery owners and steel manufacturers Tredegar, Monmouthshire
- Tredegar Wharf Co Tredgar, Monmouthshire
- Tregarth Building Society Tregarth, Caernarfonshire
- Trewern Hall Farm Buttington, Montgomeryshire
- Trewyddfa Canal
- Union Iron Company Rhymney, Monmouthshire
- United Westminster & Wrexham Collieries Ltd Wrexham, Denbighshire
- Unnamed apothecary, Cardiganshire Cardiganshire
- Unnamed attorney, Wales Wales
- Unnamed auctioneer, Pembrokeshire Pembrokeshire
- Unnamed bank, London London
- Unnamed bank, Wales?
- Unnamed blacksmith, East Glamorganshire Glamorgan
- Unnamed blacksmith, Llanilar Llanilar, Cardiganshire
- Unnamed blacksmith, Llaninar Llaninar, Cardiganshire
- Unnamed blacksmith, Llanrhystyd Llanrhystyd, Cardiganshire
- Unnamed blacksmith, Machen Machen, Monmouthshire
- Unnamed blacksmith, Pumpsaint Pumpsaint, Carmarthenshire
- Unnamed blacksmith, Rhiwlas Rhiwlas, Caernarfonshire
- Unnamed blacksmith, Trecastell Trecastell, Brecknockshire
- Unnamed bootmaker, Llanuwchllyn Llanuwchllyn, Merionethshire
- Unnamed brewer, Anglesey Anglesey
- Unnamed carpenter, Bala Bala, Merionethshire
- Unnamed cooper and farmer, Merionethshire Merionethshire
- Unnamed corn merchant, Pembrokeshire Pembrokeshire
- Unnamed doctor, Caernarfonshire Caernarfonshire
- Unnamed doctor, Cardigan Cardigan, Cardiganshire
- Unnamed doctor, Manchester Manchester, Lancashire
- Unnamed draper, Carmarthen Carmarthen, Carmarthenshire
- Unnamed drover, Trawsfynydd Trawsfynydd, Merionethshire
- Unnamed farm, Caernarfonshire Caernarfonshire
- Unnamed farm, Carmarthenshire Carmarthenshire
- Unnamed farm, Denbighshire Denbighshire
- Unnamed farm, Denbighshire Denbighshire
- Unnamed farm, Pembrokeshire Pembrokeshire
- Unnamed farm, Stockyn Stockyn, Flintshire
- Unnamed plumber and glazier, Machynlleth Machynlleth, Montgomeryshire
- Unnamed shopkeeper, Rhoslan Rhoslan, Caernarfonshire
- Unnamed tradesman, Aberystwyth Aberystwyth, Cardiganshire
- Vale of Clwyd Railway Co Denbighshire;Clwyd
- Vale of Llangollen Railway Co Llangollen, Denbighshire
- Vale of Towy Railway Co
- Van Lead Mine Llanidloes, Montgomeryshire
- Vaughan Mines Co Ltd Crosswood, Cardiganshire
- Vivian & Sons Ltd, copper smelters Swansea, Glamorgan
- Vizard & Son, solicitors Monmouth, Monmouthshire
- W and J Jones, farmers, Tanycastell Aberystwyth, Cardiganshire
- W Morris & Co, ship chandlers and ironmongers Portmadoc, Caernarfonshire
- Walter Eddy, mine surveyor Fron, Denbighshire
- Welsh Colonising & General Trading Co Ltd (Patagonia)
- Welsh Drama Company
- Welsh Granite Co Ltd Trevor, Caernarfonshire
- Welsh Lead and Zinc Ltd Cardiganshire;Dyfed
- Welsh Mines Corporation Ltd
- Welsh National Opera Company Ltd
- Welsh National Theatre Co Cardiff, Glamorgan
- Welsh Patagonian Gold Fields Syndicate Ltd
- Welsh Slate Co Moel Wyn Mawr, Merionethshire
- Welsh Teldisc Records Ltd
- Welsh Van Mining Co Ltd, lead mines Llanidloes, Montgomeryshire
- Welshpool Gas Co Welshpool, Montgomeryshire
- Welshpool Woollen Co Welshpool, Montgomeryshire
- Wern & Truro Lead Mining Co
- Wern Mill Farm Llanarth, Cardiganshire
- Western Mail & Echo Ltd, newspaper proprietors Cardiff, Glamorgan
- WG Stedman Thomas, wine and spirit merchant Carmarthen, Carmarthenshire
- Wheal Towan Adventurers, copper miners Cornwall;Cornwall
- Whitchurch furnace Whitchurch, Herefordshire
- White Grit Mining Co Maesbury, Shropshire
- Whitland Abbey Slate Quarries Whitland, Carmarthenshire
- William Davies, farmer, Brynffanigl Ucha Betws-yn-Rhos, Denbighshire
- William Evans, grocer Cas-mael, Pembrokeshire;Treletert, Pembrokeshire
- William Gunter, farmer Brecknockshire;Powys
- William Jenkins, bookseller and stationer Aberystwyth, Cardiganshire
- William Jones, building contractor Neath, Glamorgan
- William Lloyd, butcher Cardigan, Cardiganshire
- William Perkins, printer Haverfordwest, Pembrokeshire
- William Simon, blacksmith Llansadwrn, Carmarthenshire
- William Wakelin, solicitor Presteigne, Radnorshire
- William Williams & William Davies, blacksmiths Llangwyryfon, Cardiganshire
- Williams, Gittins & Tomley, solicitors, Newtown Newtown, Monmouthshire
- Wine spirit & provision merchant Haverfordwest, Pembrokeshire
- Wood & Sons, solicitors Cardiff, Glamorgan
- Wrexham & Acton Colliery Co Wrexham, Denbighshire
- Wrexham, Mold & Connahs Quay Railway Co Wrexham, Denbighshire
- Wrysgan Slate Quarry Co Ltd Blaenau Festiniog, Merionethshire
- WV James, solicitor Haverfordwest, Pembrokeshire
- Y Ddolen, newspaper Cwm Ystwyth, Cardiganshire
- Ynys-Cedwyn Company Ltd Yniscedwyn, Brecknockshire
- Ystradgynlais & Swansea Colliery Co Ltd Ystradgynlais, Brecknockshire
- Ywain Goronwy ap Griffith, architect
Organisations (2080)
- 1st Caernarvon Company of Artillery Volunteers Caernarfon, Caernarfonshire
- 1st Cheshire and Carnarvon Volunteer Corps Bangor, Caernarfonshire
- 1st Chester and Carnarvon Artillery Volunteer Corps Chester, Cheshire;Caernarfon, Caernarfonshire
- 1st Company of Penrhyn Volunteers Penrhyn, Caernarfonshire
- 1st Flint and Carnarvon Rifle Volunteers Corps Flint, Flintshire;Caernarfon, Caernarfonshire
- 1st Herefordshire Rifle Volunteer Corps Herefordshire
- 1st, 2nd and 3rd Radnorshire Rifle Volunteer Corps Radnorshire;Powys
- 2nd Caernarvon Artillery Volunteers Caernarfon, Caernarfonshire
- 3rd Carmarthenshire Volunteers Carmarthenshire;Dyfed
- 64th (2nd Staffordshire) Regiment of Foot
- Aber Research, opinion polling organisation
- Aberaeron (Aberayron) Post Office Aberaeron, Cardiganshire
- Aberaeron Union Sanitary Authority and Rural District Council Aberaeron, Cardiganshire
- Aberavon parish Aberavon, Glamorgan
- Aberayron Urban District Council Aberayron, Cardiganshire
- Aberdare District Baptist Choral Union Aberdare, Glamorgan
- Aberdovey customs Aberdovey, Merionethshire
- Aberduar Baptist Chapel, Llanybydder Llanybydder, Carmarthenshire
- Aberduar Baptist Church Aberduar, Carmarthenshire
- Aberfan Disaster Fund Aberfan, Glamorgan
- Abergavenny District Turnpike Trust Abergavenny, Monmouthshire
- Abergavenny Eisteddfod and Fetes Society Abergavenny, Monmouthshire
- Abergorlech Congregational Chapel, Llanybydder Llanybydder, Carmarthenshire
- Abergwili Clothing Club Abergwili, Carmarthenshire
- Abergwili Sick Club Abergwili, Carmarthenshire
- Abergwili tithes Abergwili, Carmarthenshire
- Aberhafesp parish Aberhafesp, Montgomeryshire
- Aberlunvey parish Aberllunvey, Brecknockshire
- Abermeurig Calvinistic Methodist Chapel, Gartheli Gartheli, Cardiganshire
- Aberystwyth and District Congregational Ministers Fraternal Aberystwyth, Cardiganshire
- Aberystwyth and District Football League Aberystwyth, Cardiganshire
- Aberystwyth and District Old Peoples Housing Society and The Deva Old Peoples Home Aberystwyth, Cardiganshire
- Aberystwyth and University Music Society Aberystwyth, Cardiganshire
- Aberystwyth Baptist College Aberystwyth, Cardiganshire
- Aberystwyth Bibliographical Group Aberystwyth, Cardiganshire
- Aberystwyth Borough Aberystwyth, Cardiganshire
- Aberystwyth Borough Choir Aberystwyth, Cardiganshire
- Aberystwyth Borough Choral Society Festivals Aberystwyth, Cardiganshire
- Aberystwyth Bowling Club Aberystwyth, Cardiganshire
- Aberystwyth Congregational Sunday Schools Aberystwyth, Cardiganshire
- Aberystwyth Constituency Labour Party Aberystwyth, Cardiganshire
- Aberystwyth District Calvinistic Methodist Singing Festival Aberystwyth, Cardiganshire
- Aberystwyth District of Calvinistic Methodist Sunday Schools Aberystwyth, Cardiganshire
- Aberystwyth District Welsh Presbyterian Churches Annual Singing Festival Aberystwyth, Cardiganshire
- Aberystwyth English Congregational Church Sunday school Aberystwyth, Cardiganshire
- Aberystwyth English Wesleyan Methodist Circuit Aberystwyth, Cardiganshire
- Aberystwyth Free Church Council Aberystwyth, Cardiganshire
- Aberystwyth Gardens and Allotments Association Aberystwyth, Cardiganshire
- Aberystwyth Harbour Trustees Aberystwyth, Cardiganshire
- Aberystwyth Harmonic Society Aberystwyth, Cardiganshire
- Aberystwyth Horse Show Aberystwyth, Cardiganshire
- Aberystwyth Inundation Fund Aberystwyth, Cardiganshire
- Aberystwyth Liberal Association Aberystwyth, Cardiganshire
- Aberystwyth Lying-in Aid and Dorcas Societies Aberystwyth, Cardiganshire
- Aberystwyth Male Voice Choir Aberystwyth, Cardiganshire
- Aberystwyth National School Aberystwyth, Cardiganshire
- Aberystwyth Nuclear Weapons Committee Aberystwyth, Cardiganshire
- Aberystwyth Old Social Club Aberystwyth, Cardiganshire
- Aberystwyth parish Aberystwyth, Cardiganshire
- Aberystwyth Peace Network Aberystwyth, Cardiganshire
- Aberystwyth Penny Readings Society Aberystwyth, Cardiganshire
- Aberystwyth physical drill class Aberystwyth, Cardiganshire
- Aberystwyth Provident Club Aberystwyth, Cardiganshire
- Aberystwyth Registration District Aberystwyth, Cardiganshire
- Aberystwyth Religion and Life Council of Churches Aberystwyth, Cardiganshire
- Aberystwyth Rural District Council Aberystwyth, Cardiganshire
- Aberystwyth shipping records Aberystwyth, Cardiganshire
- Aberystwyth South Wales Distress Fund Aberystwyth, Cardiganshire
- Aberystwyth Temperance Society Aberystwyth, Cardiganshire
- Aberystwyth Unitarian Congregation Aberystwyth, Cardiganshire
- Aberystwyth War Memorial Committee Aberystwyth, Cardiganshire
- Aberystwyth War Service Committee Aberystwyth, Cardiganshire
- Aberystwyth Womens Liberal Federation Aberystwyth, Cardiganshire
- Aberystwyth, Llanbadarn and District Nursing Association Aberystwyth, Cardiganshire
- Abyssinian Association
- Acton parish Acton, Denbighshire
- Adfa Calvinistic Methodist Chapel, Llanwyddelan Llanwyddelan, Montgomeryshire
- Adpar Borough Adpar, Cardiganshire
- Adulam Baptist Church, Felinfoel Felinfoel, Carmarthenshire
- Adwy and Coedpoeth British School Coedpoeth, Denbighshire
- Aelwyd Yr Urdd, Aberystwyth Aberystwyth, Cardiganshire
- Aeron Benefit Society, Aberaeron Aberaeron, Cardiganshire
- Agenoria, brig
- Ala Road Literary Society, Pwllheli Pwllheli, Caernarfonshire
- Alcester Presbyterian Chapel Alcester, Warwickshire
- Alexandra
- Alexandra Road/Lewis Terrace Soar United Free Methodist Chapel, Aberystwyth Aberystwyth, Cardiganshire
- Alltwen Recreation Ground Alltwen, Glamorgan
- Amalgamated Association of Miners of the Anthracite Districts
- Amalgamated Society of Carpenters and Joiners: Aberystwyth lodge (possibly General Union of Carpenters and Joiners) Aberystwyth, Cardiganshire
- Amalgamated Union of Building Trade Workers: Merthyr Tudful branch Merthyr Tydfil, Glamorgan
- Ambleston estate Ambleston, Pembrokeshire
- Amity, sloop, of Aberdovey
- Ammanford Debating Society Ammanford, Carmarthenshire
- Amor Baptist Chapel, Llanfynydd Llanfynydd, Carmarthenshire
- Ancient Order of Foresters: Welshpool, Court Powis 1505 Welshpool, Montgomeryshire
- Angel Benefit Society, Dolgellau Dolgellau, Merionethshire
- Anglesey Court of Great Sessions Anglesey;Gwynedd
- Anglesey militia Anglesey;Gwynedd
- Anglo-Ethiopian Society
- Ann Pritchard, smack, of Pwllheli
- Anti-Apartheid Movement: Welsh branch Wales
- Ardudwy Rural Deanery Ardudwy, Merionethshire
- Arennig Calvinistic Methodist Chapel, Llanycil Llanycil, Merionethshire
- Arfon District Calvinistic Methodist sunday schools Arfon, Caernarfonshire
- Argoed Baptist Chapel, Tregaron (Caron-is-clawdd) Caron-is-clawdd, Cardiganshire
- Arthog and Llwyngwril District Nursing Association Arthog, Merionethshire
- Askeaton Borough Askeaton, County Limerick
- Association of Artists and Designers in Wales: Ceredigion branch Cardiganshire;Dyfed
- Association of Chief Education Officers (Wales)
- Association of Visual Arts in Wales (formerly the Association of Artists and Designers in Wales)
- Association of Welsh Local Authorities
- Aston Chapel Aston, Shropshire
- Aston Confederate Hunt Aston, Shropshire
- Aubrey Memorial Wesleyan Methodist Chapel, Cefncoedycymer (Vaynor) Vaynor, Brecknockshire
- Avon
- Bailey Street Wesleyan Methodist Chapel, Brynmawr Brynmawr, Brecknockshire
- Bala Choral Society Bala, Merionethshire
- Bala Methodist Congregation Bala, Merionethshire
- Bala parish Bala, Merionethshire
- Bala Poor Law Union Bala, Merionethshire
- Bala Theological College Bala, Merionethshire
- Bala Union and Penllyn Rural District Council Bala, Merionethshire
- Balliol Road Baptist Church, Bootle Bootle, Lancashire
- Balliol Road Baptist Church, Liverpool Liverpool, Lancashire
- Bancyfelin Calvinistic Methodist Chapel, Llanfihangel Abercywyn Llanfihangel Abercywyn, Carmarthenshire
- Bangor Diocesan Tract Society Bangor, Caernarfonshire
- Bangor Diocese Bangor, Caernarfonshire
- Bangor tithes Bangor, Flintshire
- Baptist Churches General Assembly
- Baptist Missionary Society: Llyn and Eifionnydd Womens Auxiliary Llyn, Caernarfonshire
- Barmouth Harbour Trust Barmouth, Merionethshire
- Barmouth Library Barmouth, Merionethshire
- Barry Liberal Association Barry, Glamorgan
- Bassaleg parish Bassaleg, Monmouthshire
- Baswich Priory (St Thomas by Stafford) Baswich, Staffordshire
- Beaumaris English Calvinistic Methodist Chapel Beaumaris, Anglesey
- Bedwellty parish Bedwellty, Monmouthshire
- Belgian Refugees Committee: Barmouth Barmouth, Merionethshire
- Belgian Refugees Reception Committee, Corwen Corwen, Merionethshire
- Benjamin Piercy Flintshire;Clwyd
- Berriew Bible Society Berriew, Montgomeryshire
- Berriew Minor Charities Berriew, Montgomeryshire
- Berriew parish Berriew, Montgomeryshire
- Berth-lwyd and Dol-llys estates Berth-lwyd, Montgomeryshire
- Bethania Baptist Church, Cynwyd Cynwyd, Merionethshire
- Bethania Calvinistic Methodist Chapel, Llanbadarn Trefeglwys Llanbadarn Trefeglwys, Cardiganshire
- Bethania Calvinistic Methodist Chapel, Llandegla Llandegla, Denbighshire
- Bethania Congregational Church, Llannon Llannon, Carmarthenshire
- Bethania Welsh Baptist Church, Clydach Clydach, Glamorgan
- Bethany Calvinistic Methodist Chapel, Tregynon Tregynon, Montgomeryshire
- Bethel and Bodwydd Calvinistic Methodist churches, Tanygrisiau Tanygrisiau, Merionethshire
- Bethel Baptist Chapel, Cynwyl Gaeo Cynwyl Gaeo, Carmarthenshire
- Bethel Baptist Chapel, Holyhead Holyhead, Anglesey
- Bethel Baptist Church, Aberystwyth Aberystwyth, Cardiganshire
- Bethel Baptist Church, Mynachlogddu Mynachlogddu, Pembrokeshire
- Bethel Baptist Church, Tremarchog Tremarchog, Pembrokeshire
- Bethel Calvinistic Methodist Chapel, Bala Bala, Merionethshire
- Bethel Calvinistic Methodist Chapel, Brecon Brecon, Brecknockshire
- Bethel Calvinistic Methodist Chapel, Cynwyl Elfed Cynwyl Elfed, Carmarthenshire
- Bethel Calvinistic Methodist Chapel, Dinas Mawddy Dinas Mawddy, Merionethshire
- Bethel Calvinistic Methodist Chapel, Dolgellau Dolgellau, Merionethshire
- Bethel Calvinistic Methodist Chapel, Llanidloes Llanidloes, Montgomeryshire
- Bethel Calvinistic Methodist Chapel, Llanpumpsaint Llanpumpsaint, Carmarthenshire
- Bethel Calvinistic Methodist Church, Dyserth Dyserth, Flintshire
- Bethel Congregational Chapel, Tal-y-Bont (Ceulan-a-maesmor) Ceulan-y-maesmor, Cardiganshire
- Bethel Congregational Church, Mold Mold, Flintshire
- Bethel Independent Chapel, Mold Mold, Flintshire
- Bethel Street Calvinistic Methodist Chapel, Llanidloes Llanidloes, Montgomeryshire
- Bethel Welsh Congregational Church, Borth-y-Gest Borth-y-gest, Caernarfonshire
- Bethel Wesleyan Methodist Chapel, Isygarreg Isygarreg, Montgomeryshire
- Bethesda Baptist Church, Haverfordwest Haverfordwest, Pembrokeshire
- Bethesda Congregational Chapel, Llangynog (Llangunnock) Llangynog, Carmarthenshire;Llangunnock, Carmarthenshire
- Bethesda Congregational Chapel, Towyn Towyn, Merionethshire
- Bethesda Welsh Congregational Chapel, Merthyr Tydfil Merthyr Tydfil, Glamorgan
- Bethlehem Calvinistic Methodist Chapel, Colwyn Bay Colwyn Bay, Denbighshire
- Bethlehem Congregational Chapel, Taf-fechan (Vaynor) Vaynor, Brecknockshire
- Bethlehem Congregational Church, Llanharan, Cowbridge Rural Llanharan, Glamorgan;Cowbridge, Glamorgan
- Bethlem Calvinistic Methodist Sunday School, Llandre Llandre, Cardiganshire
- Bethpeor Calvinistic Methodist Chapel, Llanfairpwll Llanfair Pwllgwyngyll, Anglesey
- Bettws Evan parish Bettws Evan, Cardiganshire
- Betws Cedewain Calvinistic Methodist Chapel Betws Cedewain, Montgomeryshire
- Betws Ifan parish Betws Ifan, Cardiganshire
- Beulah Calvinistic Methodist Chapel, New Mills (Manafon) Manafon, Montgomeryshire
- Beulah Congregational Chapel, Betws Ifan Betws Ifan, Cardiganshire
- Beulah Congregational Church, Dyffryn Paith, Llanbadarn-y-Creuddyn Dyffryn Paith, Cardiganshire;Llanbadarn-y-creuddyn, Cardiganshire
- Bieston parish Bieston, Denbighshire
- Birkenhead Cambrian Choral Society Birkenhead, Cheshire
- Birkenhead Eisteddfod Birkenhead, Cheshire
- Birmingham Corporation Birmingham, Warwickshire
- Blackmill Friendly Society Blackmill, Glamorgan
- Blaenau Festiniog Free Church Council Blaenau Festiniog, Merionethshire
- Blaen-plwyf Calvinistic Methodist Chapel, Llanychaearn Llanychaearn, Cardiganshire
- Blaen-y-pant Wesleyan Methodist Chapel, Uwchygarreg Uwchygarreg, Montgomeryshire
- Blaenywaun Baptist Church, St Dogmaels St Dogmaels, Pembrokeshire
- Blake
- Board of Education: Welsh departmental committee
- Bodfari Benefit Society Bodfari, Flintshire
- Bodlith Forest Bodlith, Denbighshire
- Bodwell Bodwell, Caernarfonshire
- Bontdolgadfan Calvinistic Methodist Chapel Bontdolgadfan, Montgomeryshire
- Bontdolgadfan Post Office Bontdolgadfan, Montgomeryshire
- Bont-goch Ebenezer Wesleyan Chapel, Tirymynach Tirymynach, Cardiganshire
- Booth Street Congregational Church, Manchester Manchester, Lancashire
- Bootle and District Welsh Society Bootle, Lancashire
- Bootle Young Wales Society Bootle, Lancashire
- Borough Road Congregational Chapel, Southwark Southwark, Surrey
- Borras Hwfa parish Borras Hwfa, Denbighshire
- Borras Riffri parish Borras Riffri, Denbighshire
- Borth Congregational Church Borth, Cardiganshire
- Borth Parish Council Borth, Cardiganshire
- Borth Ratepayers and Electors Association Borth, Cardiganshire
- Borth Village Improvements Association Borth, Cardiganshire
- Bow Street Congregational Church, Cynnull Mawr Bow Street, Cardiganshire;Cynnull Mawr, Cardiganshire
- Bowman's Charity, Stretham Stretham, Cambridgeshire
- Brecknock Great Forest Commoners Brecknock, Brecknockshire
- Brecknockshire Quarter Sessions and County Court Brecknockshire;Powys
- Brecknockshire Territorial and Auxiliary Forces Association Brecknockshire;Powys
- Brecon and Radnor Constituency Labour Party Brecon, Brecknockshire;Radnor, Radnorshire
- Brecon Archdeaconry Brecknockshire;Powys
- Brecon Beacons National Park Committee Brecknockshire;Powys
- Brecon Borough Brecon, Brecknockshire
- Brecon boroughs elections Brecon, Brecknockshire
- Brecon Chamberlains Brecon, Brecknockshire
- Brecon charities including Games's Hospital Brecknockshire;Powys
- Brecon Court of Great Sessions Brecknockshire;Powys
- Brecon lieutenancy Brecknockshire;Powys
- Brecon militia Brecknockshire;Powys
- Brecon Priory (Dominican) Brecon, Brecknockshire
- Brecon Welsh Congregational Churches Union Brecknockshire;Powys
- Brecon: sheriff Brecknockshire;Powys
- Breconshire elections Brecknockshire;Powys
- Breconshire Harriers Brecknockshire;Powys
- Breconshire Turnpike Trust Brecknockshire;Powys
- Bridgend District Naturalists Society Bridgend, Glamorgan
- Bridgend Original Members Discussion Society Bridgend, Glamorgan
- Britannia
- Britannia, sloop
- Brithdir Brithdir, Merionethshire
- British and Foreign Bible Society: Aberystwyth and North Cardiganshire auxiliary Cardiganshire;Dyfed
- British and Foreign Bible Society: Borth Borth, Cardiganshire
- British and Foreign Bible Society: Chester auxiliary, Cambrian branch Chester, Cheshire
- British and Foreign Bible Society: Cwmaman auxiliary Cwmaman, Glamorgan
- British and Foreign Bible Society: Hope branch Hope, Flintshire
- British and Foreign Bible Society: Llanbryn-mair auxiliary Llanbryn-mair, Montgomeryshire
- British and Foreign Bible Society: Llandeilo auxiliary branch Llandeilo, Carmarthenshire
- British and Foreign Bible Society: Llandeilo Fawr auxiliary Llandeilo Fawr, Carmarthenshire
- British and Foreign Bible Society: Llandyssul auxiliary Llandyssul, Cardiganshire
- British and Foreign Bible Society: Llanfyllin auxiliary Llanfyllin, Montgomeryshire
- British and Foreign Bible Society: Lleyn and Eifionydd (later Pwllheli) auxiliary Lleyn, Caernarfonshire
- British and Foreign Bible Society: London Welsh auxiliary London
- British and Foreign Bible Society: Rhymni Rhymni, Monmouthshire
- British and Foreign Bible Society: Tremadoc auxiliary Tremadoc, Caernarfonshire
- British Beekeepers Association: Breconshire and Radnorshire branch Brecknockshire;Radnorshire;Powys
- British Beekeepers Association: Denbighshire branch Denbighshire;Clwyd
- British Beekeepers Association: Ruthin branch Ruthin, Denbighshire
- British Beekeepers Association: Wales branch
- British Beekeepers Association: Wrexham and East Denbighshire branch Wrexham, Denbighshire
- British Medical Association: South Wales and Monmouthshire branch
- British Vigilance Association: Cardiff and district Citizens Union Cardiff, Glamorgan
- Briton Ferry Labour Party Briton Ferry, Glamorgan
- Broad Street Primitive Methodist Chapel, Knighton Knighton, Radnorshire
- Bromfield Priory Bromfield, Shropshire
- Brongwyn parish Brongwyn, Cardiganshire
- Brongwyn Parish Council Brongwyn, Cardiganshire
- Brook Street Primitive Methodist Chapel, Welshpool Welshpool, Montgomeryshire
- Bryn Mair Congregational Chapel, Blaen-porth Blaenporth, Cardiganshire
- Bryn Mawr Calvinistic Methodist Church, Betws-y-Coed Betws-y-coed, Caernarfonshire
- Bryn-coch Wesleyan Methodist Chapel, Llanymawddwy Llanymawdwy, Merionethshire
- Brynhyfryd Baptist Church, Ebbw Vale Ebbw Vale, Monmouthshire
- Brynhyfryd Baptist Church, Swansea Swansea, Glamorgan
- Brynkinalt Auxiliary Hospital Brynkinalt, Denbighshire
- Brynnog in Trefilan Trefilan, Cardiganshire
- Buckinghamshire Archaeological Society Buckinghamshire;Buckinghamshire
- Builth and Penkelly hundreds land tax Builth, Brecknockshire
- Builth Wells Pageant Builth Wells, Radnorshire
- Burton upon Trent Abbey Burton-upon-Trent, Staffordshire
- Bury Welsh Calvinistic Methodists Bury, Lancashire
- Bwlch-Gwynt Calvinistic Methodist Chapel, Tregaron (Caron-is-clawdd) Caron-is-clawdd, Cardiganshire
- Bwlch-y-corn Congregational Chapel, Llanllawddog Llanllawddog, Carmarthenshire
- Bwlch-y-rhiw Welsh Baptist Church, Cil-y-cwm Cil-y-cwm, Carmarthenshire
- Byrom Street Baptist Church, Liverpool Liverpool, Lancashire
- Caenest Caenest, Merionethshire
- Caernarfon Borough Caernarfon, Caernarfonshire
- Caernarfonshire Baptist Association Caernarfonshire;Gwynedd
- Caernarfonshire Constituency Labour Party Caernarfonshire;Gwynedd
- Caernarvon Conservative Association Caernarfon, Caernarfonshire
- Caernarvon Liberal Association Caernarfon, Caernarfonshire
- Caernarvon Social Service Canteen Caernarfon, Caernarfonshire
- Caernarvonshire Court of Great Sessions Caernarfonshire;Gwynedd
- Caernarvonshire elections Caernarfonshire;Gwynedd
- Caernarvonshire lieutenancy Caernarfonshire;Gwynedd
- Caernarvonshire militia Caernarfonshire;Gwynedd
- Caernarvonshire Quarter Sessions and County Court Caernarfonshire;Gwynedd
- Caernarvonshire Rifle Volunteers Caernarfonshire;Gwynedd
- Caernarvonshire volunteers Caernarfonshire;Gwynedd
- Caernarvonshire: sheriff Caernarfonshire;Gwynedd
- Caeronnen Unitarian Chapel Caeronnen, Cardiganshire
- Caerphilly Constituency Labour Party Caerphilly, Glamorgan
- Caersalem Baptist Chapel, Parc-y-rhos (Pencarreg) Pencarreg, Carmarthenshire
- Caersalem Baptist Church, Dowlais Dowlais, Glamorgan
- Caersalem Congregational Chapel, Pontyberem (Llangynderyn/Llangendeirn) Llangynderyn, Carmarthenshire;Llangendeirn, Carmarthenshire
- Caersalem Newydd Welsh Baptist Church, Treboeth Tre-boeth, Glamorgan
- Caersalem Welsh Baptist Church, Llanelli Llanelli, Carmarthenshire
- Caersalem/Capel Mawr Calvinistic Methodist Chapel, Barmouth Barmouth, Merionethshire
- Caerwys enclosure Caerwys, Flintshire
- Caerwys parish Caerwys, Flintshire
- Caio and Llanycrwys Ploughing and Hedging Match and Horse Show Caio, Carmarthenshire
- Caldicot and Wentloog levels Commissioners of Sewers Caldicot, Monmouthshire
- Calfaria Baptist Church, Llanelli Llanelli, Carmarthenshire
- Calfaria Welsh Baptist Chapel, Abercynon Abercynon, Glamorgan
- Calvinistic Methodist Church Loan Fund
- Calvinistic Methodist Church Loan Fund: North Wales association
- Calvinistic Methodist Church Ministers Fund: North Wales association, Montgomeryshire presbytery Montgomeryshire;Powys
- Calvinistic Methodists' Sunday School Union, Wales
- Cambrian Society in Gwent Brecknockshire;Powys
- Cambridge University Liberal Club Cambridge, Cambridgeshire
- Cambridge Welsh Society Cambridge, Cambridgeshire
- Cambro-Briton Society, London London
- Campaign for Nuclear Disarmament: Aberystwyth branch Aberystwyth, Cardiganshire
- Campaign for the Protection of Rural Wales
- Canolfan Llenyddiaeth Plant Cymru Aberystwyth, Cardiganshire
- Capel Als, Llanelli Llanelli, Carmarthenshire
- Capel Bethania, Aberangell
- Capel Bethania, Llandegla
- Capel Bethel, Nant y Fflint
- Capel Bethel, Rhiw Ial, Llanarmon yn Ial
- Capel Bethlehem, Bryncrug
- Capel Brynrefail
- Capel Dewi, Faenor Uchaf (Upper Vaenor) Faenor Uchaf, Cardiganshire;Upper Vaenor, Cardiganshire
- Capel Esgairnant, Talyllychau
- Capel Ficer, Llannarth Llannarth, Cardiganshire
- Capel Gwyn Baptisit Chapel, Llechylched Llechylched, Anglesey
- Capel Gwynfa, Penyffordd, Llanasa
- Capel Isaac Independent Church, Llandeilo Fawr Llandeilo Fawr, Carmarthenshire
- Capel Madog, Parsel Canol Parsel Canol, Cardiganshire
- Capel Newydd Independent Church, Abergorlech Abergorlech, Carmarthenshire
- Capel Newydd, Pontrobert (Llangynyw) Llangynyw, Montgomeryshire
- Capel Seion, Bryneglwys Bryneglwys, Denbighshire
- Capel Seion, Carrog Llansanffraid Glan Conwy, Denbighshire
- Capel Tabernacl, Trimsaran
- Capel Tegid Young Peoples Religious Society
- Capel Uchaf, Llangurig Llangurig, Montgomeryshire
- Capel Weston Rhyn
- Capel y Doc (Docks Chapel), Llanelli Llanelli, Carmarthenshire
- Capel y Dolau, Llanarthne Llanarthne, Carmarthenshire
- Capel y Glyn Calvinistic Methodist Church, Llangywer Llangywer, Merionethshire
- Capel-y-ffin Baptist Church Capel-y-ffin, Brecknockshire
- Capel-y-ffin/Olchon Baptist Chapel, Llanigon Llanigon, Brecknockshire
- Cardiff and District Evangelical Free Church Council Cardiff, Glamorgan
- Cardiff Central Conservative Association Cardiff, Glamorgan
- Cardiff East Conservative Association Cardiff, Glamorgan
- Cardiff Guild of Cordwainers and Glovers Cardiff, Glamorgan
- Cardiff Labour Party Cardiff, Glamorgan
- Cardiff Nonconformist Ministerial Union Cardiff, Glamorgan
- Cardiff North Conservative Association Cardiff, Glamorgan
- Cardiff North West Conservative Association Cardiff, Glamorgan
- Cardiff Roman Catholic Archdiocese Cardiff, Glamorgan
- Cardiff South Conservative Association Cardiff, Glamorgan
- Cardiff South East Conservative Association Cardiff, Glamorgan
- Cardiff South East Labour Party Cardiff, Glamorgan
- Cardiff West Conservative Association Cardiff, Glamorgan
- Cardigan Borough Cardigan, Cardiganshire
- Cardigan Poor Law Union Cardigan, Cardiganshire
- Cardigan Town Labour Party Cardigan, Cardiganshire
- Cardiganshire Agricultural Executive Committee Cardiganshire;Dyfed
- Cardiganshire Association for the Blind Cardiganshire;Dyfed
- Cardiganshire Baptist Quarterly Meeting Aberystwyth, Cardiganshire
- Cardiganshire Congregationalists Quarterly meeting Cardiganshire;Dyfed
- Cardiganshire Conservative Association Cardiganshire;Dyfed
- Cardiganshire Constabulary Cardiganshire;Dyfed
- Cardiganshire County Bowling Association Cardiganshire;Dyfed
- Cardiganshire County Council Cardiganshire;Dyfed
- Cardiganshire County Gardens Produce Committee Cardiganshire;Dyfed
- Cardiganshire County Music Festival Cardiganshire;Dyfed
- Cardiganshire County Roads Board Cardiganshire;Dyfed
- Cardiganshire Court of Great Sessions Cardiganshire;Dyfed
- Cardiganshire elections Cardiganshire;Dyfed
- Cardiganshire Horticultural Society Cardiganshire;Dyfed
- Cardiganshire Labour Party Cardiganshire;Dyfed
- Cardiganshire Liberal Association Cardiganshire;Dyfed
- Cardiganshire Military Service Appeal Tribunal Cardiganshire;Dyfed
- Cardiganshire militia Cardiganshire;Dyfed
- Cardiganshire National Savings committees Cardiganshire;Dyfed
- Cardiganshire Nursing Association Cardiganshire;Dyfed
- Cardiganshire poor law unions Cardiganshire;Dyfed
- Cardiganshire Quarter Sessions Cardiganshire;Dyfed
- Cardiganshire Society for Handicapped Children Cardiganshire;Dyfed
- Cardiganshire Society in London London
- Cardiganshire Turnpike Roads Cardiganshire;Dyfed
- Cardiganshire: sheriff Cardiganshire;Dyfed
- Carmarthen Borough Carmarthen, Carmarthenshire
- Carmarthen Borough Court Carmarthen, Carmarthenshire
- Carmarthen borough elections Carmarthen, Carmarthenshire
- Carmarthen Borough Quarter Sessions Carmarthen, Carmarthenshire
- Carmarthen Labour Party Carmarthen, Carmarthenshire
- Carmarthen Town Volunteers Carmarthen, Carmarthenshire
- Carmarthenshire Agricultural Society Carmarthenshire;Dyfed
- Carmarthenshire and Cardiganshire Baptist Association Carmarthenshire;Cardiganshire;Dyfed
- Carmarthenshire and Cardiganshire Home Mission Fund Carmarthenshire;Dyfed
- Carmarthenshire Conservative Association Carmarthenshire;Dyfed
- Carmarthenshire County Court Carmarthenshire;Dyfed
- Carmarthenshire Court of Great Sessions Carmarthenshire;Dyfed
- Carmarthenshire elections Carmarthenshire;Dyfed
- Carmarthenshire Home Guard Carmarthenshire;Dyfed
- Carmarthenshire militia Carmarthenshire;Dyfed
- Carmarthenshire Roads Board Carmarthenshire;Dyfed
- Carmarthenshire Turnpike Roads Boards Carmarthenshire;Dyfed
- Carmarthenshire: sheriff Carmarthenshire;Dyfed
- Carmel Baptist Church, Pontrhydfendigaid Pontrhydfendigaid, Cardiganshire
- Carmel Calvinistic Methodist Chapel, Llanllugan Llanllugan, Montgomeryshire
- Carmel Calvinistic Methodist Church, Llanilar Llanilar, Cardiganshire
- Carmel Welsh Baptist Chapel, Troedyrhiw Troedyrhiw, Glamorgan
- Carnarvonshire Turnpike Trust Caernarfonshire;Gwynedd
- Carnegie Endowment for International Peace
- Caroline Coventry
- Castell Garfod estate Castell Garfod, Cardiganshire
- Castle Street Baptist church, Caerleon Caerleon, Monmouthshire
- Castle Street Congregational Chapel, Abergavenny (Y Fenni) Abergavenny, Monmouthshire
- Castle Street Welsh Baptist Chapel, Westminster Westminster, Middlesex
- Castleton Social and Literary Club Castleton, Monmouthshire
- Catharine Hodges, of Aberdovey
- Catherine, schooner, of New Quay
- Caurse and Pool Upper Petty Sessions Welshpool, Montgomeryshire
- Cefn Mawr and Ruabon joint diaconate Congregational churches Cefn Mawr, Denbighshire
- Cefn Nannau Calvinistic Methodist Chapel, Llangwm Llangwm, Denbighshire
- Cefnarthen Congregational Chapel, Llanfair-ar-y-bryn Llanfairarybryn, Carmarthenshire
- Cefnbryntalch estate Cefnbryntalch, Montgomeryshire
- Cefnbychan Baptist Church Cefnbychan, Denbighshire
- Cefn-Coed-y-Cymmer police constable Cefn-Coed-y-Cymmer, Brecknockshire
- Cefn-iwrch Calvinistic Methodist Chapel, Llanfair Mathafarn Eithaf Llanfair Mathafarn Eithaf, Anglesey
- Cefn-y-faenor/Ebenezer Congregational Church, Berriew Berriew, Montgomeryshire
- Cellan parish Cellan, Cardiganshire
- Celtic League
- Celyn Capel, Capel Celyn, Llanycil Capel Celyn, Merionshire
- Celyrim District Nursing Association, ? Mon Celyrim, Monmouthshire
- Cemais/Cemmaes Calvinistic Methodist Church Cemais, Montgomeryshire;Cemmaes, Montgomeryshire
- Central Campaign Committee for the Disestablishment of the Church of England in Wales London
- Central Church Committee, Bangor diocesan branch Bangor, Caernarfonshire
- Central Council of Churches and Students at Bangor Bangor, Caernarfonshire
- Central Welsh Board, Welsh Joint Education Committee
- Centre for Alternative Technology, eco-centre, Machynlleth Machynlleth, Montgomeryshire
- Cerdd Dant (Instrumental Music) Festival: Aberystwyth Aberystwyth, Cardiganshire
- Cerdd Dant (Instrumental Music) Festival: Tregaron Tregaron, Cardiganshire
- Ceredigion and Pembroke North Social Democratic Party Pembrokeshire;Dyfed
- Ceredigion Antiquarian Society Cardiganshire;Dyfed
- Ceredigion Labour Party Cardiganshire
- Ceres, brig, of Milford
- Cerrigydruidion, Llanfihangel and Llangwm Calvinistic Methodists Cerrigydruidion, Denbighshire
- Chamberlain of North Wales
- Charitable Trust of Illtid Nicholl, Llandaff Llandaff, Glamorgan
- Charles T Jones, steam ship
- Chester Street Baptist Church, Wrexham Wrexham, Denbighshire
- Chester Welsh Society Chester, Cheshire
- China Street/Heol China Calvinistic Methodist Chapel, Llanidloes Llanidloes, Montgomeryshire
- Chirk parish Chirk, Denbighshire
- Cholton Road Congregational Church Band of Hope Union, Manchester Manchester, Lancashire
- Chorlton Road Congregational Church, Manchester Manchester, Lancashire
- Christ Church College, Brecon Brecon, Brecknockshire
- Church Defence Institution: St David's diocese, Ultra Aeron ruridecanal committee St David's, Pembrokeshire
- Church in Wales
- Church Rate Abolition Society
- Churchstoke tithes Churchstoke, Montgomeryshire
- Chwarel Goch Congregational Church, Llandygai Llandygai, Caernarfonshire
- Cilau-Wen estate Cilau-wen, Pembrokeshire
- Cilfowyr Baptist church, Maenordeifi Maenordeifi, Pembrokeshire
- Cilgwyn Wesleyan Methodist Chapel, Llangybi Llangybi, Cardiganshire
- Cippyn tithes Cippyn, Pembrokeshire
- City of Bangor Lending Library Bangor, Caernarfonshire
- City of Cardiff Conservative Association Cardiff, Glamorgan
- Clarach parish Clarach, Cardiganshire
- Clarach Valley Seed Growers Association Clarach, Cardiganshire
- Clawddnewydd Calvinistic Methodist Chapel, Derwen Derwen, Denbighshire
- Clifton Road Welsh Congregational Church, Birkenhead Birkenhead, Cheshire
- Club Arian y Post Office, Rhostryfan (Rhostryfan Post Office Savings Club) Rhostryfan, Caernarfonshire
- Club Herber, Caernarfon and district Ministers Fraternal Caernarfon, Caernarfonshire
- Clwb Llyfran Cymraeg
- Clynnog district sunday schools Clynnog, Caernarfonshire
- Clyro enclosure Clyro, Radnorshire
- CND (Campaign for Nuclear Disarmament): Cymru Wales
- Cofeb R Williams Parry Caernarfonshire;Gwynedd
- Cofeb y Dewrion, Brynsiencyn Brynsiencyn, Anglesey
- Cofiwn
- Colby Scott Turnpike Gate, Haverfordwest Haverfordwest, Pembrokeshire
- Coldstream Guards
- Coleg Harlech Harlech, Merionethshire
- Colyton Unitarian meeting house (George's Meeting) Colyton, Devon
- Commissioners for Church Temporalities in Wales
- Committee for the Care of Welsh Soldiers in London Hospitals London
- Committee of Welsh District Councils
- Committee on Public Libraries in England and Wales (Roberts Committee)
- Committee on the Future of Broadcasting (Annan Committee)
- Committee to Clarify the Legal Status of the Welsh Language
- Committee to Oppose Union of the Sees of Bangor and St Asaph
- Condover Hundred Condover, Shropshire
- Congregational Federation in Wales
- Congregational Union: North Cardiganshire and Dovey Valley Womens Federation Cardiganshire;Dyfed
- Conservative Party (Wales)
- Conway Ministers Fraternal Conwy, Caernarfonshire
- Conway Road Calvinistic Methodist Chapel, Colwyn Bay Colwyn Bay, Denbighshire
- Conway Valley Welsh Methodist (Wesleyan) Circuit Conwy, Caernarfonshire
- Conwy Conservative Association Conwy, Caernarfonshire
- Cor Meibion Aberystwyth (Aberystwyth Male Voice Choir) Aberystwyth, Cardiganshire
- Corlan Housing Association Ltd Caernarfonshire;Gwynedd
- Corwen and District War Relief Committee Corwen, Merionethshire
- Corwen and Edeirnion Female Friendly Benefit Society Corwen, Merionethshire
- Corwen parish Corwen, Merionethshire
- Council for British Archaeology: Wales and Monmouth branch
- Council for Sunday Schools in Wales
- Council for the Principality of Wales
- Council for the Protection of Rural Wales: Caernarfonshire branch Caernarfonshire;Gwynedd
- Council for Wales and Monmouthshire
- Council in the Marches of Wales
- Council of Churches for Wales
- Council of Welsh Districts
- Court Henry estate Court Henry, Carmarthenshire
- Courtridhir estate Courtridhir, Glamorgan
- Cowethas Flamank (Cornish current affairs and research group) Cornwall;Cornwall
- Crafnant and Gerddi Bluog estates Crafnant, Merionethshire
- Craft Potters Association
- Craig Bargoed Congregational Church, Gelligaer Gelligaer, Glamorgan
- Crewe and District Welsh Society Crewe, Cheshire
- Cribyn Day School, Llanfihangel Ystrad Llanfihangel Ystrad, Cardiganshire
- Cribyn Unitarian Chapel, Llanfihangel Ystrad Llanfihangel Ystrad, Cardiganshire
- Cricieth Charity School Cricieth, Caernarfonshire
- Crickheath forest Crickheath, Shropshire
- Crickhowell Methodist Chapel Crickhowell, Brecknockshire
- Crickhowell Petty Sessions Crickhowell, Brecknockshire
- Croesyparc Baptist Chapel Croes-y-parc, Glamorgan
- Croes-y-parc Baptist church Croes-y-parc, Glamorgan
- Cronfa Glyndwr yr Ysgolion Cymraeg, Welsh medium educational organisation
- Cross Hands Inn Benefit Club Society, Llanybydder Llanybydder, Carmarthenshire
- Crown lands in Caernarvonshire and Anglesey Anglesey;Caernarfonshire;Gwynedd
- Cwm Tirymynach Calvinistic Methodist Chapel, Llanfor Llanfor, Merionethshire
- Cwmbrwyno Horeb Wesleyan Methodist Chapel, Melindwr Melindwr, Cardiganshire
- Cwmgloyne estate Cwmgloyne, Pembrokeshire
- Cwmrheidol School Board Cwmrheidol, Cardiganshire
- Cwmsymlog Baptist Chapel Cwmsymlog, Cardiganshire
- Cwmystwyth Friendly Society Cwmystwyth, Cardiganshire
- Cwmystwyth Welsh Calvinistic Methodist Chapel Cwmystwyth, Cardiganshire
- Cydplwyf and Llanina parish Cydplwyf And Llanina, Cardiganshire
- Cyfoeth y Brenin Parish Council Cyfoeth Y Brenin, Cardiganshire
- Cyfronnydd Cyfronnydd, Montgomeryshire
- Cyfundeb Dyngarol Lodge 1841 (philanthropic society), Monmouthshire Monmouthshire;Gwent
- Cylch y Pump ar Hugain: Lerpwl (literary society) Liverpool, Lancashire
- Cymanfa a Chyfarfod Chwarter Bedyddwyr Morgannwg (Glamorgan Baptist Association and Quarterly Meeting) Glamorgan
- Cymanfa Annibynwyr Sir Caerfyrddin Carmarthenshire;Dyfed
- Cymanfa Ganu Annibynwyr Dyffryn Afan
- Cymanfa Ganu Dosbarth y Garn (Garn District Calvinistic Methodist Singing Festival) Garn, Cardiganshire
- Cymanfa Ysgolion committee, Liverpool Liverpool, Lancashire
- Cymdeithas Bechgyn y Bala Bala, Merionethshire
- Cymdeithas Bob Owen
- Cymdeithas Cerdd Dafod, literary society
- Cymdeithas Cerdd Dant Cymru
- Cymdeithas Cofeb Beca, Efailwen Efailwen, Pembrokeshire
- Cymdeithas Cyfeillion Ysgol Gyfun Penweddig Aberystwyth, Cardiganshire
- Cymdeithas Cymreigyddion, Cyfeiliog Cyfeiliog, Montgomeryshire
- Cymdeithas Cymreigyddion, Dolgellau Dolgellau, Merionethshire
- Cymdeithas Cymry Ariannin ym Mhrydain
- Cymdeithas Cymry Wallasey Wallasey, Cheshire
- Cymdeithas Ddiwygiadol a Dirwestol Trawsfynydd Trawsfynydd, Merionethshire
- Cymdeithas Enweiriawl Gymraeg, Tan-y-Grisiau branch Tan-y-grisiau, Merionethshire
- Cymdeithas Gelfyddyd Llyfrgell Genedaethol Cymru Aberystwyth, Cardiganshire
- Cymdeithas Genhadol y Bedyddwyr ar gyfer y boblogaeth wasgaredig Gymraeg yn Llundain (The Baptist Missionary Society for the scattered Welsh Population of London) London
- Cymdeithas Gorsedd Beirdd Mon (Anglesey Bardic Gorsedd Society) Anglesey;Gwynedd
- Cymdeithas Gwasanaeth Cymdeithasol Bedyddwyr Cymru
- Cymdeithas Gyfeillgar Edeyrn (Edeyrn Friendly Society) Edeyrn, Caernarfonshire
- Cymdeithas Gyfeillgar Glannau Rhyddalt (Glannau Rhyddalt Friendly Society), Llanrug Llanrug, Caernarfonshire
- Cymdeithas Gyfeillgar Gwragedd Llandderfel a Llandrillo (Llandderfel and Llandrillo Friendly Society) Llandderfel, Merionethshire
- Cymdeithas Gyfeillgar Llanfor (Llanfor Friendly Society) Llanfor, Merionethshire
- Cymdeithas Gymroaidd y Bala
- Cymdeithas Gynorthwyol Glannau Ifor (Glannau Ifor Benefit Society), Llanrug Llanrug, Caernarfonshire
- Cymdeithas Hanes Annibynwyr Cymru
- Cymdeithas Hynafiaethau Cymru (Cambrian Archaeological Association)
- Cymdeithas Lenyddawl Gymreig (literary debating)
- Cymdeithas Llenyddawl Meirion (literary debating) Merionethshire;Gwynedd
- Cymdeithas Lyfrau Ceredigion (Ceredigion Book Society) Cardiganshire;Dyfed
- Cymdeithas Mabinogion
- Cymdeithas Plant Derfel, Llandderfel Llandderfel, Merionethshire
- Cymdeithas Y Bedol, Aberystwyth Aberystwyth, Cardiganshire
- Cymdeithas y Chwiorydd (Womens Guild), Llandeilo, Salem Presbyterian Church Llandeilo, Carmarthenshire
- Cymdeithas y Ford Gron (Round Table), Manchester Manchester, Lancashire
- Cymdeithas y Gwyneddigion
- Cymdeithas y Marsiandwyr Perlau (literary and art society) Wrexham, Denbighshire
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society)
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Ammanford cell Ammanford, Carmarthenshire
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Cangen Ceredigion Cardiganshire;Dyfed
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Cardiff cell Cardiff, Glamorgan
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Carmarthen cell Carmarthen, Carmarthenshire
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Ceredigion North cell Cardiganshire;Dyfed
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Cynon Valley cell Cynon Valley, Glamorgan
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Dyfed area Dyfed
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Glamorgan-Gwent area Monmouthshire;Glamorgan;Gwent
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Gwent cell Monmouthshire;Gwent
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Llanelli cell Llanelli, Carmarthenshire
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Merthyr Tydfil cell Merthyr Tydfil, Glamorgan
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Newport cell Newport, Monmouthshire
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Powys area Powys
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Swansea cell Swansea, Glamorgan
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Swansea Valley cell Swansea, Glamorgan
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Taf Elai cell Glamorgan
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Trecelyn cell Monmouthshire;Gwent
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): Trefethin cell Monmouthshire;Gwent
- Cymdeithas yr Iaith Gymraeg (Welsh Language Society): West Glamorgan cell Glamorgan;West Glamorgan
- Cymdeithas yr Orsedd (Gorsedd Society)
- Cymreigyddion y Fenni (Abergavenny Welsh Literary and Music Festivals) Abergavenny, Monmouthshire
- Cysegr Congregational Chapel, Rhewl Rhewl, Flintshire
- Cytûn: Churches Together in Wales
- Dafydd ap Gwilym Society, Oxford Oxford, Oxfordshire
- Darowen tithes Darowen, Montgomeryshire
- David Davies Memorial Montgomeryshire;Powys
- Dderw estate Dderw, Radnorshire
- Denbigh boroughs elections Denbigh, Denbighshire
- Denbigh Division Conservative Association, Ruthin branch Ruthin, Denbighshire
- Denbigh School Denbigh, Denbighshire
- Denbighshire and Flintshire Union of Welsh Independents Flintshire;Denbighshire;Clwyd
- Denbighshire Court of Great Sessions Denbighshire;Clwyd
- Denbighshire elections Denbighshire;Clwyd
- Denbighshire Flintshire and Montgomeryshire Sheriffs Association Denbighshire;Clwyd
- Denbighshire Home Guard Denbighshire;Clwyd
- Denbighshire land tax Denbighshire;Clwyd
- Denbighshire militia Denbighshire;Clwyd
- Denbighshire Quarter Sessions Denbighshire;Clwyd
- Denbighshire tithes Denbighshire;Clwyd
- Denbighshire: sheriff Denbighshire;Clwyd
- Deneio parish Deneio, Caernarfonshire
- Departmental Committee on Rural Education in Wales
- Derigaron Calvinistic Methodist sunday School (Bwlch-Gwynt Church), Tregaron Tregaron, Cardiganshire
- Derwen Calvinistic Methodist Chapel Derwen, Denbighshire
- Derwen-las Wesleyan Methodist Chapel, Isygarreg Isygarreg, Montgomeryshire
- Deuddwr Petty Sessions Deuddwr, Montgomeryshire
- Development Board for Rural Wales
- Devynnock tithes Devynnock, Brecknockshire
- Dewi-Prys Thomas Trust
- Dinmael Calvinistic Methodist Chapel, Llangwm Llangwm, Denbighshire
- Dinorwic Calvinistic Methodist District meeting Dinorwic, Caernarfonshire
- Disserth parish Disserth, Radnorshire
- Doithie Camddwr parish Doithie Camddwr, Cardiganshire
- Doldowlod estate Doldowlod, Brecknockshire
- Dolgellau Aiding Society Dolgellau, Merionethshire
- Dolgellau Bible Association Dolgellau, Merionethshire
- Dolgellau District Calvinistic Methodist Sunday School Dolgellau, Merionethshire
- Dolgellau Friendly Society Dolgellau, Merionethshire
- Dolgellau Rowing Club Dolgellau, Merionethshire
- Dolgellau United Temperance Choir Dolgellau, Merionethshire
- Dolgelly and Mowddwy Districts Turnpike Roads Dolgelly, Merionethshire;Mowddwy, Merionethshire
- Dolgelly Poor Law Union Dolgelly, Merionethshire
- Don Arturo, steam ship
- Dongray Dongray, Flintshire
- Dovey Embankment and land drainage Cardiganshire;Dyfed
- Dovey, Mawddach and Glaslyn Fishery District Board of Conservators Merionethshire;Gwynedd
- Dowlais and Penydarren Nursing Association Dowlais, Glamorgan
- Dowlais money club Dowlais, Glamorgan
- Dr Daniel Williams Educational Trust
- Dreadnought, brigantine
- Duchy of Cornwall
- Dyfed Area Social Democratic Party Dyfed
- Dyfed Congregational Churches annual assembly (Cymanfa Annibynwyr Dyfed, Cymafair Tair Sir) Dyfed
- Dyffryn Calvinistic Methodist Chapel, Llandyrnog Llandyrnog, Denbighshire
- Dysynny Valley Drainage Board Dysynni, Merionethshire
- Eagle
- Eagle Eyed, schooner, of Aberystwyth
- Earlsfield Road Baptist Church, Liverpool Liverpool, Lancashire
- East Glamorgan Baptist Association: Undeb Adran y Rhondda Rhondda, Glamorgan
- East Glamorgan Labour Womens Advisory Council Glamorgan;South Glamorgan
- Ebbw Vale Iron and Steel Trades and Labour Council Ebbw Vale, Monmouthshire
- Ebenezer Baptist Church, Eglwyswrw Eglwyswrw, Pembrokeshire
- Ebenezer Baptist Church, Llandyssul Llandyssul, Cardiganshire
- Ebenezer Calvinistic Methodist Chapel, Llanymynech (Carreghofa) Llanymynech, Montgomeryshire;Carreghofa, Montgomeryshire
- Ebenezer Calvinistic Methodist Chapel, Twyncarno Twyncarno, Monmouthshire
- Ebenezer Calvinistic Methodist Chapel, Welshpool Welshpool, Montgomeryshire
- Ebenezer Congregational Church and Sunday School, Newport Newport, Pembrokeshire
- Ebenezer Congregational Church, Prescot Prescot, Lancashire
- Ebenezer Congregational Church, Swansea Swansea, Glamorgan
- Ebenezer Presbyterian Church, Cwmrhydyceirw, Morriston Morriston, Glamorgan
- Ebenezer Welsh Congregational Church, Llanfair Caereinion Llanfair Caereinion, Montgomeryshire
- Ebenezer Wesleyan Methodist Chapel, Cardigan (Aberteifi) Cardigan, Cardiganshire;Aberteifi, Cardiganshire
- Ebenezer Wesleyan Methodist Chapel, Carmarthen Carmarthen, Carmarthenshire
- Ebenezer Wesleyan Methodist Chapel, Cilcennin Cilcennin, Cardiganshire
- Ebenezer Wesleyan Methodist Chapel, Llangadog Llangodog, Carmarthenshire
- Economy, schooner
- Edern Calvinistic Methodist Chapel Edern, Caernarfonshire
- Edern Parish Council Edern, Caernarfonshire
- Edge Lane Welsh Baptist Church, Liverpool Liverpool, Lancashire
- Edmund Mortimer, 3rd Earl of March Radnorshire;Powys
- Eglwysilan parish Eglwysilan, Glamorgan
- Eifionydd Farmers Association Caernarfonshire;Gwynedd
- Eifionydd Society for the Prosecution of Felons Eifionydd, Caernarfonshire
- Eisteddfod Gadeiriol Maldwyn Montgomeryshire;Powys
- Eisteddfod Genedlaethol Cymru (National Eisteddfod of Wales)
- Eldon Street Welsh Baptist Chapel, Moorfields Shoreditch, Middlesex
- Eleanor and Jane
- Elim Calvinistic Methodist Chapel, Llanddeinol Llanddeinol, Cardiganshire
- Elizabeth, of Llanelli Llanelli, Carmarthenshire
- Ellen Glynne's Charity, Llandwrog Llandwrog, Caernarfonshire
- Ellen, of New Quay
- Emmanuel College Debating Society, Cambridge Cambridge, Cambridgeshire
- Endymion
- Engedi Calvinistic Methodist Chapel Colwyn Bay, Denbighshire
- Engedi Calvinistic Methodist Chapel, Colwyn Bay Colwyn Bay, Denbighshire
- English Baptist Chapel, Caersws (Llannwnog) Caersws, Montgomeryshire;Llannwnog, Montgomeryshire
- English Congregational Union of Wales
- English Presbyterian Chapel, Llanelli Llanelli, Carmarthenshire
- English Presbyterian Church, Colwinston Colwinston, Glamorgan
- Enid Property Club, Trealaw Trealaw, Glamorgan
- Erlas parish Erlas, Denbighshire
- Esgairdawe Congregational Chapel, Pencarreg Pencarreg, Carmarthenshire
- Esgeirnant Calvinistic Methodist Chapel, Talley Talley, Carmarthenshire
- Estimaner Petty Sessions Estimaner, Merionethshire
- European Bureau for Lesser Used Languages
- Everton Village Baptist Church, Liverpool Liverpool, Lancashire
- Everton Village Welsh Baptist Church Everton, Lancashire
- Excise, ? Newport, Monmouthshire Newport, Monmouthshire
- Fellowship of Reconciliation in Wales
- Ferndale parish Ferndale, Glamorgan
- Ffaldybrenin Congregational Chapel, Llan-crwys (Llan-y-crwys) Llan-crwys, Carmarthenshire;Llan-y-crwys, Carmarthenshire
- Ffestiniog friendly societies Ffestiniog, Merionethshire
- Ffestiniog parish Ffestiniog, Merionethshire
- Ffestiniog Poor Law Union Ffestiniog, Merionethshire
- Ffosrhydgaled estate Ffosrhydgaled, Cardiganshire
- Ffrwdrech estate, Sr David Ffrwdgrech, Brecknockshire
- Ffynnonhenri Baptist Chapel, Cynwyl Elfed Cynwyl Elfed, Carmarthenshire
- First Regiment of West Riding Yeomanry Cavalry Yorkshire, West Riding
- Fishguard Turnpike Trust Fishguard, Pembrokeshire
- Fitzclarence Street Calvinistic Methodist Welsh Church, Liverpool Liverpool, Lancashire
- Flint boroughs elections Flint, Flintshire
- Flintshire and Denbighshire Labour Womens Advisory Council Flintshire;Denbighshire;Clwyd
- Flintshire Court of Great Sessions Flintshire;Clwyd
- Flintshire District English Congregational Union Flintshire;Clwyd
- Flintshire elections Flintshire;Clwyd
- Flintshire militia Flintshire;Clwyd
- Flintshire tithes Flintshire;Clwyd
- Flintshire United Temperance Association Flintshire;Clwyd
- Flintshire: sheriff Flintshire;Clwyd
- Football Association of Wales
- Forden Poor Law Union Forden, Montgomeryshire
- Forden Rural District Council Forden, Montgomeryshire
- Forest of Dean Forest of Dean, Gloucestershire
- Fortune
- Forward Movement Church, St Thomas, Swansea Swansea, Glamorgan
- Frances
- French and Dutch prisoners of war, Newtown Newtown, Montgomeryshire
- Freystrop School Freystrop, Pembrokeshire
- Friends of the Earth Cymru
- Gabriel Piozzi, Bachigraig Piozzi, Flintshire
- Gades Calvinistic Methodist Chapel, Clocaenog Clocaenog, Denbighshire
- Galltyllan Galltyllan, Montgomeryshire
- Garn Presbyterian Church, Pen-y-garn Pen-y-garn, Cardiganshire
- Garreg-fawr Baptist Chapel, Llanfechell Llanfechell, Anglesey
- Garton Foundation
- Gartside Street Congregational Church, Manchester Manchester, Lancashire
- Garw Valley Sunday School Union Glamorgan
- Garw Valley Union of Welsh Baptist Churches Singing Festival Glamorgan
- Gelli-deg Congregational Church, Merthyr Tydfil Merthyr Tydfil, Glamorgan
- Gellifer Calvinistic Methodist Church Gellifer, Denbighshire
- Gellifor Calvinistic Methodist Chapel, Llangynhafal Llangynhafal, Denbighshire
- Gelligaer parish Gelligaer, Glamorgan
- Gelynos Congregational Chapel, Llanwrtyd Llanwrtyd, Brecknockshire
- General Committee on Mutual Understanding and Co-operation (Christian Communions in Wales)
- General Post Office files on Welshpool - Llangadfan Mail Cart Service Welshpool, Montgomeryshire;Llangadfan, Montgomeryshire
- Gerard Street Baptist Church, Liverpool Liverpool, Lancashire
- Gerlan Calvinistic Methodist Church Gerlan, Caernarfonshire
- Gesailgyfarch estate Gesailgyfarch, Caernarfonshire
- Geuffordd Calvinisic Methodist Chapel, Guilsfield Guilsfield, Montgomeryshire
- Gilgal Congregational Church, Maentwrog Maentwrog, Merionethshire
- Glamorgan elections Glamorgan
- Glamorgan land tax Glamorgan
- Glamorgan militia Glamorgan
- Glamorgan Quarter Sessions Glamorgan
- Glamorgan Society for the Encouragement of Agriculture Glamorgan
- Glamorgan Street Congregational Chapel, Brecon Brecon, Brecknockshire
- Glandwr Congregational Church, Llanfyrnach Glandwr, Pembrokeshire;Llanfyrnach, Pembrokeshire
- Glandwr Independent Church, Llanfyrnach Llanfyrnach, Pembrokeshire
- Glannau Teifi Baptist Singing Festival Glannau Teifi, Cardiganshire;Teifiside, Cardiganshire
- Glan'rafon Presbyterian Church, Llawr-y-Betws Llawr-y-betws, Merionethshire
- Glan-y-nant Calvinistic Methodist Chapel, Llanidloes Llanidloes, Montgomeryshire
- Glasaber and Llanarmon Dyffryn Ceiriog Calvinistic Methodist Churches Llanarmon Dyffryn Ceiriog, Denbighshire
- Gleiniant Calvinistic Methodist Chapel, Trefeglwys Trefeglwys, Montgomeryshire
- Glenara
- Gloucestershire elections Gloucestershire;Gloucestershire
- Glyn Calvinistic Methodist Chapel, Denbigh Denbigh, Denbighshire
- Glyn Calvinistic Methodist Chapel, Llanidloes Llanidloes, Montgomeryshire
- Glynarthen Congregational Chapel, Penbryn Penbryn, Cardiganshire
- Glyncorrwg parish Glyncorrwg, Glamorgan
- Glyndyfrdwy Baptist Chapel, Corwen Glyndyfrdwy, Merionethshire;Corwen, Merionethshire
- Glynsanan Benefit Society, Llanfynydd Llanfynydd, Carmarthenshire
- Godfrey Prythergh Caernarfonshire;Gwynedd
- Goginan Football Club Goginan, Cardiganshire
- Golden Goat Friendly Society, Dolgellau Dolgellau, Merionethshire
- Gorsedd y Beird (The Gorsedd of Bards)
- Gorwydd Parish Council Gorwydd, Cardiganshire
- Gosen Calvinistic Methodist Chapel, Llandybie Llandybie, Carmarthenshire
- Graig Baptist Church, Newcastle Emlyn Newcastle Emlyn, Carmarthenshire
- Grand United Order of Oddfellows: Pen-y-ffordd Pen-y-ffordd, Flintshire
- Grangetown Baptist Church, Cardiff Cardiff, Glamorgan
- Greenham Common Women's Peace Camp Greenham, Berkshire
- Gregynog Conferences on International Education
- Gregynog Festival
- Gro Calvinistic Methodist Chapel, Betws Gwerful Goch Betws Gwerful Goch, Merionethshire
- Groes Congregational Church, Llangwm Llangwm, Denbighshire;Groes, Denbighshire
- Groes-lwyd Congregational Chapel, Guilsfield Guilsfield, Montgomeryshire
- Groydd estate, Cerrigydrudion Cerrigydrudion, Denbighshire
- Guild of Graduates of the University of Wales
- Guilsfield Combined Charities Guilsfield, Montgomeryshire
- Guilsfield parish Guilsfield, Montgomeryshire
- Gweled (Welsh Association of Visual Arts)
- Gwenddwr charity Gwenddwr, Brecknockshire
- Gwernoge Congregational Church Gwernoge, Carmarthenshire
- Gwernyfed estate, Brecknockshire Brecknockshire;Powys
- Gwyl Fawr Aberteifi (Cardigan Eisteddfod) Cardigan, Cardiganshire;Aberteifi, Cardiganshire
- Gwynfil Parish Council Gwynfil, Cardiganshire
- Hafod Estate, Cwmystwyth Hafod, Cardiganshire
- Hafod-y-bwch colliery workers association Hafod-y-bwch, Denbighshire
- Hanley Welsh Wesleyan Methodist Circuit Hanley, Staffordshire
- Hanmer parish Hanmer, Flintshire
- Harlech Calvinistic Methodist Chapel Harlech, Merionethshire
- Harlech Hospital League Harlech, Merionethshire
- Harlech Memorial Hall Harlech, Merionethshire
- Harmony Baptist Church, Pen-caer Pen-caer, Pembrokeshire
- Haverfordwest Baptist Academy Haverfordwest, Pembrokeshire
- Haverfordwest Baptist Burial Ground Haverfordwest, Pembrokeshire
- Haverfordwest Cartlett Chapel Haverfordwest, Pembrokeshire
- Haverfordwest charities Haverfordwest, Pembrokeshire
- Haverfordwest Coroner Haverfordwest, Pembrokeshire
- Haverfordwest Moravian Church Haverfordwest, Pembrokeshire
- Haverfordwest parish Haverfordwest, Pembrokeshire;Haroldston, Pembrokeshire;St Issells, Pembrokeshire
- Haverfordwest Society for the Dectection and Punishment of Felonies, Burglaries etc Haverfordwest, Pembrokeshire
- Haverfordwest to St Davids Turnpike Trust Haverfordwest, Pembrokeshire;St Davids, Pembrokeshire
- Haverfordwest: boarding school Haverfordwest, Pembrokeshire
- Hawarden and district land tax Hawarden, Flintshire
- Hawarden Choral Society Hawarden, Flintshire
- Hawarden peculiar Hawarden, Flintshire
- Hay and Talgarth Seed Growers Association Hay, Brecknockshire
- Hay Horse Show Society Hay, Brecknockshire
- Hay parish Hay, Brecknockshire
- Hay Poor Law Union Hay, Brecknockshire
- Hempstead tithes Hempstead, Essex
- Hen Gapel, Llanbryn-mair Llanbryn-mair, Montgomeryshire
- Hengoed Baptist Church Hengoed, Carmarthenshire
- Hengwrt Hengwrt, Merionethshire
- Henrietta, schooner
- Henry Richard Memorial Fund, Tregaron Tregaron, Cardiganshire
- Henry Whyte of Fryers Fryers, Anglesey
- Hensol estate deeds and papers Hensol, Glamorgan
- Heol Awst Welsh Congregational Chapel, Carmarthen Carmarthen, Carmarthenshire
- Heol-y-dwr Calvinistic Methodist Chapel, Carmarthen Carmarthen, Carmarthenshire
- Hephsibah Congregational Church, Clarach Clarach, Cardiganshire
- Hereford Archdeaconry Hereford, Herefordshire
- Hereford Borough Hereford, Herefordshire
- Hereford Diocese Hereford, Herefordshire
- Hermon Baptist Church, Garnfach Garnfach, Monmouthshire
- Hermon Congregational Church, Dinas Mawddy, Mallwyd Dinas Mawddy, Merionethshire;Mallwyd, Merionethshire
- Hermon Congregational Church, Ystradfellte Ystradfellte, Brecknockshire
- Highgate Men's Club, Whitchurch Whitchurch, Shropshire
- Hill and Pembridge Castle estates Hill, Monmouthshire;Pembridge, Herefordshire
- Hind, of Newquay
- Historical Association
- Historical Society of West Wales
- HM Prison, Carmarthen Carmarthen, Carmarthenshire
- HMS Berwick (1723)
- HMS Chatham (1716)
- HMS Doris (1808)
- HMS Gloucester (1737)
- HMS Leopard (1659)
- HMS Liverpool (1860)
- HMS Ranger (1820)
- HMS Royal Adelaide (1828)
- HMS Tartarus (1834)
- HMS Tweed (1759)
- HMS Viper (1831)
- Holt Baptist Church Holt, Denbighshire
- Holt Borough Holt, Denbighshire
- Home for Friendless and Destitute Girls, Wrexham Wrexham, Denbighshire
- Hon G L Vaughan Cardiganshire;Dyfed
- Honeyborough House estate Honeyborough, Pembrokeshire
- Honourable Society of Cymmrodorion
- Honourable Society of Cymmrodorion Welsh War Relief Committee
- Honourable Society of Cymmrodorion: Aberdare branch Aberdare, Glamorgan
- Honourable Society of Cymmrodorion: Aberystwyth branch Aberystwyth, Cardiganshire
- Honourable Society of Cymmrodorion: Cardiff branch Cardiff, Glamorgan
- Honourable Society of Cymmrodorion: Garw Valley branch Garw Valley, Glamorgan
- Honourable Society of Cymmrodorion: Mid-Rhondda branch Rhondda, Glamorgan
- Honourable Society of Cymmrodorion: Powys branch Powys
- Honourable Society of Cymmrodorion: Swansea branch Swansea, Glamorgan
- Honourable Society of Cymmrodorion: Treherbert branch Treherbert, Glamorgan
- Hope, smack
- Horeb Calvinistic Methodist Chapel, Mynydd-y-garreg (Kidwelly) Kidwelly, Carmarthenshire
- Horeb Calvinistic Methodist Chapel, Rhostryfan Rhostryfan, Caernarfonshire
- Horeb Congregational Chapel, Llandyssul Llandyssul, Cardiganshire
- Horeb Congregational Chapel, Llanglydwen Llanglydwen, Carmarthenshire
- Husbandry Friendly Society, Rhydyfelin Rhydyfelin, Cardiganshire
- Ilma
- Independent Order of Oddfellows, Manchester Unity: Aberystwyth district committee Aberystwyth, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Aberystwyth district, Earl of Lisburne Lodge Aberystwyth, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Aberystwyth, Rheidol Lodge Aberystwyth, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Aberystwyth, St Davids Lodge Aberystwyth, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Bera Castle Lodge
- Independent Order of Oddfellows, Manchester Unity: Borth, Cambrian Lodge Borth, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Dolgellau district committee Dolgellau, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Dolgellau Loyal Idris Lodge 1263 Dolgellau, Merionethshire
- Independent Order of Oddfellows, Manchester Unity: Druid Lodge Cardiganshire;Dyfed
- Independent Order of Oddfellows, Manchester Unity: Frongoch House, Earl of Lisburne Lodge Frongoch, Merionethshire
- Independent Order of Oddfellows, Manchester Unity: Gogerddan Lodge Gogerddan, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Gwalia district Cardiganshire;Dyfed
- Independent Order of Oddfellows, Manchester Unity: Loyal Mawddach Lodge
- Independent Order of Oddfellows, Manchester Unity: Loyal Mawddwy Lodge Dinas Mawddwy, Merionethshire
- Independent Order of Oddfellows, Manchester Unity: Loyal Temple of Love Lodge, Aberystwyth Aberystwyth, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Padarn Lodge
- Independent Order of Oddfellows, Manchester Unity: Penrhyn-coch, Loyal St Johns Lodge Penrhyn-coch, Cardiganshire
- Independent Order of Oddfellows, Manchester Unity: Sir John Edwards Lodge
- Independent Order of Oddfellows, Manchester Unity: Talybont Loyal Iolo Goch Lodge Talybont, Cardiganshire
- Independent Order of Oddfellows: Machynlleth, Llynlleoedd Lodge Machynlleth, Montgomeryshire
- Independent Order of Oddfellows: Talley Lodge Talley, Carmarthenshire
- Independent Order of Oddfellows: Vale of Llangollen district, Cader Dinmael Lodge 1440 Llangollen, Denbighshire
- Independent Order of Rechabites: Aberystwyth Aberystwyth, Cardiganshire
- Independent Order of Rechabites: North Pembroke and South Cardigan District Pembrokeshire;Cardiganshire;Dyfed
- Independent Order of Rechabites: Soar's Tent no 957, Dinas Mawddwy, Merioneth district Dinas Mawddwy, Merionethshire
- Industrial Unrest Commission for Wales
- Inflexible
- Institute of Public Administration
- Institute of Welsh Affairs: Sefydliad Merion Cymreig
- Institution of Professional Civil Servants: National Library of Wales branch Aberystwyth, Cardiganshire
- International Bee Research Association Cardiff, Glamorgan
- International Celtic Congress
- International Celtic Congress: Wales branch
- International Order of Good Templars: Croesor Lodge Croesor, Merionethshire
- International Order of Good Templars: Deudraeth Lodge Deudraeth, Merionethshire
- International Order of Good Templars: Lleyn and Eifionydd district Lodge Lleyn, Caernarfonshire
- International Order of Good Templars: Machynlleth, Maglona Lodge Machynlleth, Montgomeryshire
- International Order of Good Templars: Ystumtuen Lodge Ystumtuen, Cardiganshire
- Isa'ndre Parish Council Isa'ndre, Cardiganshire
- Island Farm Prisoner of War Camp, Bridgend Bridgend, Glamorgan
- Italian Hero, of Aberystwyth
- Jacobite Cycle Club of North Wales
- James Haffenden, Newland estate, Forest of Dean Newland, Gloucestershire
- James Phillips of Sedgley Sedgley, Staffordshire
- James, schooner, of Cardigan
- Jane Ure, barque
- Jane, brig
- Jazz Heritage Wales Wales
- Jerusalem Calvinistic Methodist Chapel, Berriew Berriew, Montgomeryshire
- Jerusalem Calvinistic Methodist Chapel, Cerrigydrudion Cerrigydrudion, Denbighshire
- Jerusalem Calvinistic Methodist Church, Bethesda Bethesda, Caernarfonshire
- Jerusalem Methodist Chapel, Ystalyfera
- Jezreel Baptist Chapel, Goginan Goginan, Cardiganshire
- John Crane, surveyor-general of navy victualling
- John Griffith, Receiver-General of North Wales
- John Jones' Charity, Cosheston, Lampeter Velfrey, Lawrenny, St Davids Lampeter Velfrey, Pembrokeshire;Cosheston, Pembrokeshire;St Davids, Pembrokeshire;Lawrenny, Pembrokeshire
- John Llewellyn: Sutton estate Sutton Estate, Lincolnshire
- John Maurice Charity, Llanbeblig and Llanmg Llanbeblig, Caernarfonshire;Llanmg, Caernarfonshire
- John Wilkinson, ironmaster, Bradley Bradley, Staffordshire
- Joint Committee for Promoting Educational Facilities in the South Wales and Monmouthshire coalfield
- Joseph Foster Barham: Trecoon Trecoon, Pembrokeshire
- Keeper of the Privy Purse
- Kerry Mutual Improvement Association Kerry, Montgomeryshire
- Kerry parish Kerry, Montgomeryshire
- Kidwelly Neighbourly Society Kidwelly, Carmarthenshire
- Kidwelly, Pembrey and St Ishmael enclosure Kidwelly, Carmarthenshire
- King Edward VII Welsh National Memorial Association
- King Gould, Regimental Agent
- King Lud, steam ship
- King's Cross Tabernacle Welsh Congregational Church St Pancras, Middlesex
- Knighton parish Knighton, Radnorshire
- La Societe des Concerts Francais Aberystwyth, Cardiganshire
- Labour Party Wales
- Laleston Nursing Association Laleston, Glamorgan
- Lammas Street Welsh Congregational Church, Carmarthen Carmarthen, Carmarthenshire
- Lampeter Agricultural Society Lampeter, Cardiganshire
- Lampeter Borough Lampeter, Cardiganshire
- Lampeter Local Board of Health and Rural Sanitary Authority Lampeter, Cardiganshire
- Lampeter parish Lampeter, Cardiganshire
- Lampeter Poor Law Union Lampeter, Cardiganshire
- Lampeter Rural District Council Lampeter, Cardiganshire
- Lampeter, and Aberayron and Lampeter Highway Boards Lampeter, Cardiganshire
- Lampter Petty Sessions Lampeter, Cardiganshire
- Lancashire and Western Sea Fisheries Joint Committee Lancashire
- Laugharne Corporation Laugharne, Carmarthenshire
- League of Nations Union: Welsh national council
- League of the Empire: Montgomeryshire branch Montgomeryshire;Powys
- Libanus Calvinistic Methodist Chapel, Brynmawr Brynmawr, Brecknockshire
- Libanus Congregational Church, Cwmsyfiog Cwmsyfiog, Monmouthshire
- Libanus Independent Church, Morriston Morriston, Glamorgan
- Libanus Welsh Baptist Chapel, Treherbert Treherbert, Glamorgan
- Liberal Democrats Wales
- Liberal Party
- Liberty, hospital ship
- Liberty, yacht
- Lily, of Barmouth
- Lion Street Wesleyan Methodist Chapel, Brecon Brecon, Brecknockshire
- Lively, freights, of Laugharne
- Lively, sloop, of Aberystwyth
- Liverpool and Birkenhead Welsh Congregational Band of Hope Union Liverpool, Lancashire
- Liverpool and District Baptist Sunday School Union Liverpool, Lancashire
- Liverpool and District Baptist Union Liverpool, Lancashire
- Liverpool and District Welsh Congregational Churches Liverpool, Lancashire
- Liverpool and District Welsh Congregational Union Preaching Festival Liverpool, Lancashire
- Liverpool Calvinistic Methodist Presbytery Liverpool, Lancashire
- Liverpool Cambrian Society Liverpool, Lancashire
- Liverpool Independent Chapels Liverpool, Lancashire
- Liverpool Ministers Fraternal Liverpool, Lancashire
- Liverpool Welsh Free Church Liverpool, Lancashire
- Liverpool Welsh Nationalist Society Liverpool, Lancashire
- Liverpool Womens Hospital Welsh Appeal Committee Liverpool, Lancashire
- Liverpool, Manchester and District Union of Welsh Independent Chapels Liverpool, Lancashire
- Llaethliw estate Llaethliw, Cardiganshire
- Llanaber parish Llanaber, Merionethshire
- Llanarthne parish Llanarthne, Carmarthenshire
- Llanbadarn Fawr Air Raid Precautions Llanbadarn Fawr, Cardiganshire
- Llanbadarn Fawr Clergy Study Circle Llanbadarn Fawr, Cardiganshire
- Llanbadarn Fawr parish Llanbadarn Fawr, Cardiganshire
- Llanbadarn Fawr Rural Deanery Choral Union Llanbadarn Fawr, Cardiganshire
- Llanbadarnfawr parish Llanbadarnfawr, Cardiganshire
- Llanbadarnfawr War Memorial Committee Llanbadarnfawr, Cardiganshire
- Llanbeblig parish Llanbeblig, Caernarfonshire
- Llanbedr parish Llanbedr, Merionethshire
- Llanbryn-mair Girls Benefit Society Llanbryn-mair, Montgomeryshire
- Llanbryn-mair Literary Society Llanbryn-mair, Montgomeryshire
- Llanbryn-mair parish Llanbryn-mair, Montgomeryshire
- Llanbryn-mair Temperance Society Llanbryn-mair, Montgomeryshire
- Llancynfelin parish Llancynfelin, Cardiganshire
- Llandaff and Barry Conservative Association Llandaff, Glamorgan
- Llandaff Diocesan Lay Readers Association Llandaff, Glamorgan
- Llandaff Diocese Llandaff, Glamorgan
- Llandderfel parish Llandderfel, Merionethshire
- Llandderfel Thrift and Temperance Society Llandderfel, Merionethshire
- Llanddewi Brefi Burial Board Llanddewi Brefi, Cardiganshire
- Llanddewi Brefi Community Council Llanddewi Brefi, Cardiganshire
- Llanddewi Brefi parish Llanddewi Brefi, Cardiganshire
- Llanddewi Velfrey and Crinow tithes Llanddewi Velfrey, Pembrokeshire;Crinow, Pembrokeshire
- Llanddwywe parish Llanddwywe, Merionethshire
- Llandebie Chair Eisteddfod Committee Llandebie, Carmarthenshire
- Llandecwyn parish Llandecwyn, Merionethshire
- Llandeilo Public Hall and Literary Institute Llandeilo, Carmarthenshire
- Llandeilo Talybont parish Llandeilo Talybont, Glamorgan
- Llandeilo Wesleyan Methodist Circuit Llandilo, Carmarthenshire
- Llandewi Brefi Burial Board Llandewi Brefi, Cardiganshire
- Llandewibrefi Association for the Prosecution of Felons Llandewibrefi, Cardiganshire
- Llandilo and Brecon Wesleyan Methodist Circuit Brecon, Brecknockshire
- Llandinam Presbyterian Church Llandinam, Montgomeryshire
- Llandovery Borough Llandovery, Carmarthenshire
- Llandovery parish Llandovery, Carmarthenshire
- Llandovery Petty Sessions Llandovery, Carmarthenshire
- Llandovery Poor Law Union Llandovery, Carmarthenshire
- Llandovery Rural District Council Llandovery, Carmarthenshire
- Llandrinio parish Llandrinio, Montgomeryshire
- Llandudno Soldiers Recreation Committee Llandudno, Caernarfonshire
- Llandybie Colliery Sickness Fund Llandybie, Carmarthenshire
- Llandyfrydog parish Llandyfrydog, Anglesey
- Llandygwydd parish Llandygwydd, Cardiganshire
- Llandysilio parish Llandysilio, Cardiganshire
- Llandysilio-yn-Ial parish Llandysilio-yn-ial, Denbighshire
- Llandyssil parish Llandyssil, Montgomeryshire
- Llandyssul Agricultural Society Ltd Llandyssul, Cardiganshire
- Llandyssul and District Baptist Sunday School Festival Llandyssul, Cardiganshire
- Llandyssul Benefit Society Llandyssul, Cardiganshire
- Llandyssul parish Llandyssul, Cardiganshire
- Llanedi parish Llanedi, Carmarthenshire
- Llanegwad parish Llanegwad, Carmarthenshire
- Llanelli Labour Womens Advisory Council Llanelli, Carmarthenshire
- Llanelly Committee of Social Service Llanelli, Carmarthenshire
- Llanelly Hill Methodist Chapel Llanelli, Brecknockshire;Llanelly, Brecknockshire
- Llanelly Trades Council and Divisional Labour Party Llanelli, Carmarthenshire
- Llanerchfrochwel estate Guilsfield, Montgomeryshire
- Llanerchrugog Denbighshire;Clwyd
- Llanerfyl parish Llanerfyl, Montgomeryshire
- Llanerfyl tithes Llanerfyl, Montgomeryshire
- Llanfair Llanfair, Merionethshire
- Llanfair and Dolillan estates Llanfair, Cardiganshire
- Llanfair Caereinion Agricultural and Horticultural Society Llanfair Caereinion, Montgomeryshire
- Llanfair Caereinion Baptist Church Llanfair Caereinion, Montgomeryshire
- Llanfair Caereinion Electric Society Llanfair Caereinion, Montgomeryshire
- Llanfair Dyffryn Clwyd parish Llanfair Dyffryn Clwyd, Denbighshire
- Llanfair Orllwyn parish Llanfair Orllwyn, Cardiganshire
- Llanfair-ar-y-bryn parish Llanfairarybryn, Carmarthenshire
- Llanfair-juxta-Harlech parish Llanfair juxta Harlech, Merionethshire
- Llanfechain parish Llanfechain, Montgomeryshire
- Llanfihangel and Llanafan District Nursing Association Llanfihangel-y-Creuddyn, Cardiganshire
- Llanfihangel Ciliau Aeron parish Llanfihangel Ciliau Aeron, Cardiganshire
- Llanfihangel Geneu'r Glynn parish Llanfihangel Geneu'r Glynn, Cardiganshire
- Llanfihangel Glyn Myfyr Calvinistic Methodist Chapel Llanfihangel Glyn Myfyr, Denbighshire
- Llanfihangel Upper Parish Council Llanfihangel-y-Creuddyn, Cardiganshire
- Llanfihangel-ar-arth parish Llanfihangel ar Arth, Carmarthenshire
- Llanfihangel-y-Pennant parish Llanfihangel-y-Pennant, Merionethshire
- Llanfihangel-y-Traethau parish Llanfihangel-y-Traethau, Merionethshire
- Llanfwrog Baptist Church Llanfwrog, Denbighshire
- Llanfyllin Association for the Prosecution of Felons Llanfyllin, Montgomeryshire
- Llanfyllin Poor Law Union Llanfyllin, Montgomeryshire
- Llangadock Turnpike Trust Llangadock, Carmarthenshire
- Llangadock Wesleyan Methodist meeting House Llangadock, Carmarthenshire
- Llangafelach parish Llangafelach, Monmouthshire
- Llangathen parish Llangathen, Carmarthenshire
- Llangeinwen Community Council Llangeinwen, Anglesey
- Llangeinwen land tax Llangeinwen, Anglesey
- Llangeitho Benefit Society Llangeitho, Cardiganshire
- Llangeitho Female Benefit Society Llangeitho, Cardiganshire
- Llangeler parish Llangeler, Carmarthenshire
- Llangerniew Cottage Garden Improvement and Industrial Society Llangerniew, Denbighshire
- Llangibby Friendly Society Llangibby, Monmouthshire
- Llangibby parish Llangibby, Monmouthshire
- Llangloffan Baptist Church, Granston Granston, Pembrokeshire
- Llangollen and Eglwyseg National Schools Llangollen, Denbighshire
- Llangollen parish Llangollen, Denbighshire
- Llangolman parish Llangolman, Pembrokeshire
- Llangranog Parish Council Llangranog, Cardiganshire
- Llangutig parish Llangutig, Montgomeryshire
- Llanguyryfon parish Llanguyryfon, Cardiganshire
- Llangwm Tithe Defence Fund Llangwm, Denbighshire
- Llangyndeyrn and Gwendraeth Fach Defence Committee Llangyndeyrn, Carmarthenshire
- Llangynhafal parish Llangynhafal, Denbighshire
- Llangynidr Wesleyan Methodist Chapel Llangynidr, Brecknockshire
- Llangynyw tithes Llangynyw, Montgomeryshire
- Llanidloes and District Free Church Council Llanidloes, Montgomeryshire
- Llanidloes and Newtown Llanidloes, Montgomeryshire
- Llanidloes Borough Llanidloes, Montgomeryshire
- Llanidloes Borough Petty Sessions Llanidloes, Montgomeryshire
- Llanidloes Congregational Chapel Llanidloes, Montgomeryshire
- Llanidloes County Court Llanidloes, Montgomeryshire
- Llanidloes County School Llanidloes, Montgomeryshire
- Llanidloes Lower Petty Sessions Llanidloes, Montgomeryshire
- Llanidloes parish Llanidloes, Montgomeryshire
- Llanidloes Upper Petty Sessions Llanidloes, Montgomeryshire
- Llaniestyn parish Llaniestyn, Caernarfonshire
- Llanihangel Yestern Llewen parish Llanihangel Yestern Llewen, Montgomeryshire
- Llanilar and Lledrod District Nursing Association Llanilar, Cardiganshire
- Llanina parish Llanina, Cardiganshire
- Llanllyfni Ward parish Llanllyfni, Caernarfonshire
- Llannerch-y-medd Druidical Friendly Society Llannerch-y-medd, Anglesey
- Llan-non Calvinistic Methodist District Meeting Llan-non, Cardiganshire
- Llannon New Benefit Club Llannon, Carmarthenshire
- Llannor parish Llannor, Caernarfonshire
- Llanon Infant Board School Llanon, Cardiganshire
- Llanrhaiadr Hall Denbighshire;Clwyd
- Llanrhaiadr ym Mochnant Association for the Prosecution of Felons Llanrhaeadr-ym-Mochnant, Denbighshire
- Llanrhystid tithes Llanrhystid, Cardiganshire
- Llanrhystud Baptist Church Llanrhystud, Cardiganshire
- Llanrhystyd and Llangwyryfon Nursing Association Llanrhystyd, Cardiganshire
- Llanrhystyd Mefenydd parish Llanrhystyd Mefenydd, Cardiganshire
- Llanrug Free Church Council Llanrug, Caernarfonshire
- Llanrug parish Llanrug, Caernarfonshire
- Llansadwrn and Llanwrda Nursing Association Llansadwrn, Carmarthenshire
- Llansantffraid Deuddwr parish Llansantffraid Deuddwr, Montgomeryshire
- Llansantffraid Deuddwr Sion Calvinistic Methodist Church Llansantffraid Deuddwr, Montgomeryshire
- Llansantffread and Llanvillo enclosure Llansantffread, Brecknockshire
- Llansantffread iuxta Usk parish Llansantffread, Brecknockshire
- Llansantfread parish Llansantffread, Monmouthshire
- Llansilin Wesleyan Methodist Chapel Llansilin, Denbighshire
- Llanuwchllyn Male Friendly Society Llanuwchllyn, Merionethshire
- Llanuwchllyn tithe Llanuwchllyn, Merionethshire
- Llanuwchllyn Welsh Congregational Chapel Llanuwchllyn, Merionethshire
- Llanwddyn Bible Society Llanwyddn, Montgomeryshire
- Llanwddyn parish Llanwddyn, Montgomeryshire
- Llanwenarth Baptist Church Llanwenarth, Monmouthshire
- Llanwenog parish Llanwenog, Cardiganshire
- Llanwfrog Baptist Church, Ruthin Ruthin, Denbighshire
- Llanwhimp Primitive Methodist Chapel, Boughrood Boughrood, Radnorshire
- Llanwnda District Nursing Association Llanwnda, Caernarfonshire
- Llanwnda Liberal Association Llanwnda, Caernarfonshire
- Llanwnnog tithes Llanwnnog, Montgomeryshire
- Llanwrin Calvinistic Methodist Church Llanwrin, Montgomeryshire
- Llanwrin parish Llanwrin, Montgomeryshire
- Llanwrin tithes Llanwrin, Montgomeryshire
- Llanwrtyd Independent Chapel Llanwwrtyd, Brecknockshire
- Llanybydder Rural District Council Llanybydder, Carmarthenshire
- Llanychaiarn and District Nursing Association Llanychaiarn, Cardiganshire
- Llanycil parish Llanycil, Merionethshire
- Llanyfllin and Pool Lower Petty Sessions Llanyfllin, Montgomeryshire;Welshpool, Montgomeryshire
- Lledrod enclosures: Llansilin parish Lledrod, Denbighshire
- Lledrod Isaf parish Lledrod Isaf, Cardiganshire
- Llewelyn Benefit Society, Lampeter Lampeter, Cardiganshire
- Llewelyn's Charity, Ystradfellte Ystradfellte, Brecknockshire
- Lleyn Rural Deanery Lleyn, Caernarfonshire
- Llidiardau Calvinistic Methodist Chapel, Llanycil Llanycil, Merionethshire
- Lloyd Street Congregational Church, Llanelli Llanelli, Carmarthenshire
- Lloyd's of London, marine insurers London
- Llwyncelyn Congregational Church Llwyncelyn, Cardiganshire
- Llwynpiod Calvinistic Methodist Chapel, Llanbadarn Odwyn Llanbadarn Odwyn, Cardiganshire
- Local Government Boundary Commission: Wales
- London Cymreigyddion Society London
- London Missionary Society: Welsh council
- London Montgomeryshire Society London
- London Society of Old Aberystwythians London
- London Welsh Association Football Club London
- London Welsh Charitable Aid Society London
- London Welsh Golf Society
- Loyal Order of Ancient Shepherds: Resolven Resolven, Glamorgan
- Loyalty, of Newquay
- Lunaria, barque, of Llanon
- Luton Unitarian Congregation Luton, Bedfordshire
- Machynlleth First Friendly Society Machynlleth, Montgomeryshire
- Machynlleth Highway board Machynlleth, Montgomeryshire
- Machynlleth parish Machynlleth, Montgomeryshire
- Machynlleth Petty Sessions Machynlleth, Montgomeryshire
- Machynlleth Poor Law Union Machynlleth, Montgomeryshire
- Machynlleth Red Cross Hospital Machynlleth, Montgomeryshire
- Machynlleth Rural District Council Machynlleth, Montgomeryshire
- Machynlleth Temperance Club Machynlleth, Montgomeryshire
- Machynlleth Urban District Council Machynlleth, Montgomeryshire
- Maengwyn Calvinistic Methodist Chapel, Machynlleth Machynlleth, Montgomeryshire
- Maenofferen Calvinistic Methodist Chapel, Blaenau Festiniog Blaenau Festiniog, Merionethshire
- Maenol estate, Llanidloes (Evans, Hayward and Philips families) Maenol, Montgomeryshire
- Maentwrog parish Maentwrog, Merionethshire
- Maes y Porth estate Maes Y Porth, Anglesey
- Maescanner Baptist church, Dafen Dafen, Carmarthenshire
- Maes-hafn Calvinistic Methodist Chapel, Llanferres Llanferres, Denbighshire
- Maesycwmwr parish Maesycwmwr, Cardiganshire
- Maesyfelin estate Maesyfelin, Cardiganshire
- Maesyrhelem Baptist Chapel, Llananno Llananno, Radnorshire
- Magellan
- Main Congregational Church, Meifod Main, Montgomeryshire;Meifod, Montgomeryshire
- Mallwyd Calvinistic Methodist Chapel Mallwyd, Merionethshire
- Mallwyd Urban District Council Mallwyd, Merionethshire
- Maly Bran
- Mamhilad parish Mamhilad, Monmouthshire
- Manafon parish Manafon, Montgomeryshire
- Manafon School Manafon, Montgomeryshire
- Manchester Congregational Churches Manchester, Lancashire
- Manchester Welsh National Society Manchester, Lancashire
- Manchester Welsh Wesleyan Methodist circuit and chapels Manchester, Lancashire
- Margam Abbey Margam, Glamorgan
- Maria
- Mark Master Masons of England: Loventium Lodge 1287, Aberaeron Aberaeron, Cardiganshire
- Marshfield, Coedkernow etc, house, window and lights duties Marshfield, Monmouthshire;Coedkernow, Monmouthshire;St Mellons, Monmouthshire;Peterstone, Monmouthshire
- Martin's Lane Congregational Church, Wallasey Wallasey, Cheshire
- Mathrafal Petty Sessions Mathrafal, Montgomeryshire
- Matthew Powell, Fetter Lane and Nevilles Alley estate Fetter Lane, London
- Mawr Community Council Llangyfelach, Glamorgan
- Mayer Street Welsh Congregational Church, Hanley Hanley, Staffordshire
- Meibion Cynog (Sons of Cynog) Friendly Society, Llangynog Llangynog, Montgomeryshire
- Meliden parish Meliden, Flintshire
- Melindwr and district Ministers Fraternal Melindwr, Cardiganshire
- Meline parish Meline, Pembrokeshire
- Memorial College, Swansea Swansea, Glamorgan
- Menai Rural Deanery Menai, Caernarfonshire
- Merioneth Agricultural Society Merionethshire;Gwynedd
- Merioneth Eisteddfod Merionethshire;Gwynedd
- Merioneth Infantry Merionethshire;Gwynedd
- Merioneth Labour Party Merioneth, Merionethshire
- Merioneth militia Merionethshire;Gwynedd
- Merioneth Quarter Sessions Merionethshire;Gwynedd
- Merioneth Rural Sanitary Authorities and Rural District Councils Merionethshire;Gwynedd
- Merionethshire Court of Great Sessions Merionethshire;Gwynedd
- Merionethshire enclosures Merionethshire;Gwynedd
- Merionethshire Reform Association Merionethshire;Gwynedd
- Mermaid
- Merthyr Tydfil borough elections Merthyr Tydfil, Glamorgan
- Merthyr Tydfil Educational Settlement Merthyr Tydfil, Glamorgan
- Merthyr Tydfil Methodist Circuit Merthyr Tydfil, Glamorgan
- Meyrick Street Wesley Chapel, Pembroke Dock Pembroke Dock, Pembrokeshire
- Mid-Rhondda Grocers Association Rhondda, Glamorgan
- Mid-Rhondda Trades and Labour Council Rhondda, Glamorgan
- Mid-Wales Development Corporation
- Milford Baptist Church Milford Haven, Pembrokeshire
- Mining Association of Great Britain
- Ministry of Agriculture, Welsh Department
- Minwere parish Minwere, Pembrokeshire
- Miss Moyra Hill Trevor's Nursery Hospital, Chirk Chirk, Denbighshire
- Mochnant enclosure Mochnant, Denbighshire
- Moelunben Baptist Church, Llanfair Talhaearn Llanfair Talhaiarn, Denbighshire
- Mold parish Mold, Flintshire
- Monmouth Conservative Association Monmouth, Monmouthshire
- Monmouth Divisional Liberal Association Monmouth, Monmouthshire
- Monmouth Social Democratic Party Monmouth, Monmouthshire
- Monmouth taxes Monmouth, Monmouthshire
- Monmouth Turnpike Trust Monmouth, Monmouthshire
- Monmouth Union Monmouth, Monmouthshire
- Monmouthshire and South Wales Coalowners Association Monmouthshire;Gwent
- Monmouthshire Assizes Monmouthshire;Gwent
- Monmouthshire elections Monmouthshire;Gwent
- Monmouthshire Hunt Monmouthshire;Gwent
- Monmouthshire land and window taxes Monmouthshire;Gwent
- Monmouthshire Local Authorities Joint Wages Board Monmouthshire;Gwent
- Monmouthshire Quarter Sessions Monmouthshire;Gwent
- Monmouthshire tithes Monmouthshire;Gwent
- Monmouthshire Volunteer Infantry Monmouthshire;Gwent
- Monmouthshire volunteers Monmouthshire;Gwent
- Monmouthshire: sheriff Monmouthshire;Gwent
- Montgomery boroughs elections Montgomery, Montgomeryshire
- Montgomery Bowling Green Society Montgomery, Montgomeryshire
- Montgomery Calvinistic Methodist Chapel Montgomery, Montgomeryshire
- Montgomery County Nursing Association Montgomeryshire;Powys
- Montgomery hundred upper division taxes Montgomery, Montgomeryshire
- Montgomery Superintendent Registrar Montgomery, Montgomeryshire
- Montgomeryshire Agricultural Society Montgomeryshire;Powys
- Montgomeryshire and Shropshire Welsh Calvinistic Methodist Presbytery Montgomeryshire;Powys
- Montgomeryshire Congregational Union Montgomeryshire;Powys
- Montgomeryshire Constabulary Force Montgomeryshire;Powys
- Montgomeryshire County Herb Committee Montgomeryshire;Powys
- Montgomeryshire Court of Great Sessions Montgomeryshire;Powys
- Montgomeryshire elections Montgomeryshire;Powys
- Montgomeryshire English Congregational Union Montgomeryshire;Powys
- Montgomeryshire Flood Distress Fund Montgomeryshire;Powys
- Montgomeryshire Infirmary, Newtown Newtown, Montgomeryshire
- Montgomeryshire Liberal Association Montgomeryshire;Powys
- Montgomeryshire militia Montgomeryshire;Powys
- Montgomeryshire Petty Sessions Montgomeryshire
- Montgomeryshire Quarter Sessions Montgomeryshire;Powys
- Montgomeryshire Tithes Montgomeryshire;Gwynedd
- Montgomeryshire Turnpike Roads Trust Montgomeryshire;Powys
- Montgomeryshire: sheriff Montgomeryshire;Powys
- Moriah Calvinistic Methodist Chapel, Llanrhystud Anhuniog Llanrhystud Anhuniog, Cardiganshire
- Moriah Calvinistic Methodist Chapel, Vaynor Vaynor, Brecknockshire
- Moriah Congregational Church, Rhymney Rhymney, Monmouthshire
- Morris Davies, Rhydgalid
- Morriston War Fund Morriston, Glamorgan
- Mostyn, Glasbury etc Glasbury, Radnorshire
- Mount Zion Welsh Wesleyan Methodist Circuit, Liverpool Liverpool, Lancashire
- Mudiad Ysgolion Meithrin ( National Association of Welsh Medium Nursery Schools and Play-groups)
- Multiple Sclerosis Research Fund
- Myddelton, St Martin's St Martin's, Shropshire
- Mydriolin Reading Room Mydroilin, Cardiganshire
- Mydroilyn Congregational Chapel Mydroilyn, Cardiganshire
- Myllin Literary and Debating Society Llanfyllin, Montgomeryshire
- Mynachlogddu parish Mynachlogddu, Pembrokeshire
- Mynydd Mawr and district Free Church Council Mynydd Mawr, Caernarfonshire
- Mynydd Mawr Ministers Fraternal Mynydd Mawr, Caernarfonshire
- Mynydd Seion Calvinistic Methodist Chapel, Abergele Abergele, Denbighshire
- Mynyddbach Congregational Church, Llandeilo Fawr Llandeilo, Carmarthenshire
- Nant Gwythern, Welsh language centre
- Nant-y-glo Wesleyan Methodist Chapel, Aberystruth Aberystruth, Monmouthshire
- National Association of Decorative and Fine Arts Societies: South Wales Wales
- National British Womens Total Abstinence Union: Aberystwyth branch Aberystwyth, Cardiganshire
- National Council of Social Service: Coalfields Distress Committee
- National Curriculum History Committee for Wales
- National Eisteddfod: Abergavenny 1913 Abergavenny, Monmouthshire
- National Eisteddfod: Aberystwyth Aberystwyth, Cardiganshire
- National Eisteddfod: Bangor Bangor, Caernarfonshire
- National Eisteddfod: Denbigh 1939 Denbigh, Denbighshire
- National Eisteddfod: Dolgellau 1949 Dolgellau, Merionethshire
- National Eisteddfod: Liverpool Liverpool, Lancashire
- National Eisteddfod: Llanelli 1930
- National Eisteddfod: Machynlleth 1937 Machynlleth, Montgomeryshire
- National Eisteddfod: Pwllheli 1925 Pwllheli, Caernarfonshire
- National Farmers Union: Clynnog branch Clynnog, Caernarfonshire
- National Federation of Women's Institutes
- National Fund for Welsh Troops
- National Liberal Club London
- National Library of Wales
- National Museum of Wales
- National Pageant of Wales: Cardiff Cardiff, Glamorgan
- National Savings Movement, Wales
- National Union of General and Municipal Workers: South Wales district
- National Union of Journalists: Aberystwyth and Cambrian Coast branch Aberystwyth, Cardiganshire
- National Union of Mineworkers, North Wales area: Bersham lodge Bersham, Denbighshire
- National Union of Mineworkers, North Wales area: Blaencaegurwen lodge
- National Union of Mineworkers, North Wales area: Blaenywaun lodge
- National Union of Mineworkers, North Wales area: Hafod lodge Hafod, Denbighshire
- National Union of Womens Suffrage Societies: LLangollen branch Llangollen, Denbighshire
- Naylor Estate, Liverpool Liverpool, Lancashire
- Neath Lower parish Neath, Glamorgan
- Nebo Congregational Church, Bwlch Gwyn Bwlch Gwyn, Denbighshire
- Nefyn Conservative Association Nefyn, Caernarfonshire
- Nerissa, schooner, of Aberystwyth
- Neuadd Calvinistic Methodist Chapel, Llanidloes Llanidloes, Montgomeryshire
- Neuadd Idris (Dolgelley) Community Centre Dolgellau, Merionethshire
- Neuadd-fawr Hounds, Lampeter Lampeter, Cardiganshire
- Neuaddlwyd and Peniel Independent Churches, Aberaeron Aberaeron, Cardiganshire
- Neuadd-lwyd Congregational Chapel, Henfynyw Henfynyw, Cardiganshire;Neuadd-lwyd, Cardiganshire
- New Commonwealth Society
- New Radnor Corporation New Radnor, Radnorshire
- New Radnor enclosure New Radnor, Radnorshire
- New Road Bethel Calvinistic Methodist Chapel, Newtown Newtown, Montgomeryshire
- New Valiant, schooner, of Portmadoc
- Newborough land tax Newborough, Anglesey
- Newcastle Court estate Newcastle upon Tyne, Northumberland
- Newcastle Emlyn Old Age Pensions Sub-Committee Newcastle Emlyn, Carmarthenshire
- Newcastle Emlyn Poor Law Union Newcastle Emlyn, Carmarthenshire
- Newcastle Emlyn Town Improvement Committee Newcastle Emlyn, Carmarthenshire
- Newcastle parish Newcastle, Glamorgan
- Newgate Prison, London London
- Newport and Nevern District Nursing Association Newport, Pembrokeshire
- Newport County Borough Council Newport, Monmouthshire
- Newport Cricket Club Newport, Monmouthshire
- Newport District Turnpike Trust Newport, Monmouthshire
- Newport Football Club Newport, Shropshire
- Newport West Conservative Association Newport, Monmouthshire
- Newport West Constituency Labour Party Newport, Monmouthshire
- Newtown County Court Newtown, Montgomeryshire
- Newtown Lower Petty Sessions Newtown, Montgomeryshire
- Newtown parish Newtown, Montgomeryshire
- Newtown tithes Newtown, Montgomeryshire
- Newtown Upper Petty Sessions Newtown, Montgomeryshire
- Newtown Wesleyan Methodist Circuit Newtown, Montgomeryshire
- No Assembly Campaign
- Noddfa Baptist Chapel, Corris Corris, Merionethshire
- Noddfa Baptist Chapel, Lampeter Lampeter, Cardiganshire
- Noddfa Baptist Church, Brymbo Brymbo, Denbighshire
- Nolan Committee on Standards in Public Life
- North Cardiganshire Archery, Croquet and Lawn Tennis Club Cardiganshire;Dyfed
- North Cardiganshire Baptist Quarterly Meeting Cardiganshire;Dyfed
- North Cardiganshire Calvinistic Methodist Presbytery Cardiganshire;Dyfed
- North Cardiganshire Congregational Churches bi-monthly meetings Cardiganshire;Dyfed
- North Cardiganshire Shire Horse Society Cardiganshire;Dyfed
- North Carmarthenshire Baptist Quarterly Meeting Carmarthenshire;Dyfed
- North Denbighshire Coroner Denbighshire;Clwyd
- North Pembrokeshire Baptists District Meeting Pembrokeshire;Dyfed
- North Wales Choral Union
- North Wales Conservative Association
- North Wales Enginemens Protective Association: Wrexham, Chirk, Buckley and Mostyn branches Wrexham, Denbighshire;Chirk, Denbighshire;Buckley, Flintshire;Mostyn, Flintshire
- North Wales Liberal Federation
- North Wales Miners Association
- North Wales Quarrymens Union
- North Wales Quarrymens Union: Caebraichycafn lodge and works committee Caebraichycafn, Caernarfonshire
- North Wales Temperance Federation
- North Wales Temperance Union
- North Wales Womens Group of the Conservative Party
- North Wales Women's Liberal Federation Wales
- North Wales Womens Temperance Union
- Northwaite
- Nottingham Welsh Society Nottingham, Nottinghamshire
- Oakfield Road Welsh Wesleyan Methodist Circuit, Liverpool Liverpool, Lancashire
- Old Bethel Congregational Chapel, Cwmaman Cwmaman, Glamorgan
- Oldfield Charity, Denbigh Denbigh, Denbighshire
- Order of Ancient Britons: Llandyssul Afon Teifi Lodge Llandyssul, Cardiganshire
- Oswestry Company of Corvisers Oswestry, Shropshire
- Oswestry parish Oswestry, Shropshire
- Oswestry tollgates Oswestry, Shropshire
- Oswestry Welsh Society Oswestry, Shropshire
- Oswestry Womens Temperance Union Oswestry, Shropshire
- Oswigo, barque
- Overton tithes Overton, Flintshire
- Owain Glyndwr Institute, Machynlleth Machynlleth, Montgomeryshire
- Oxford Road Wesleyan Methodist Chapel, Hay Hay, Brecknockshire
- Oxford University, Christ Church: Montgomeryshire estate Montgomeryshire;Powys
- Oxford University, Jesus College Oxford, Oxfordshire
- Oxford University, Nuffield College Reconstruction Survey Oxford, Oxfordshire
- Paddington Society, Bangor Bangor, Caernarfonshire
- Painscastle Rural District Council and Highway Board Painscastle, Radnorshire
- Palleg commoners, Ystradgynlais Ystradgynlais, Brecknockshire
- Pandy Calvinistic Methodist Chapel and Sunday School, Llanuwchllyn Llanuwchllyn, Merionethshire
- Pant-glas Calvinistic Methodist Chapel, Llanfor Llanfor, Merionethshire
- Pant-teg Congregational Chapel, Abergwili Abergwili, Carmarthenshire
- Parc Womens Institute Parc, Gwynedd
- Park Building Club, Clydach Vale Clydach Vale, Glamorgan
- Park English Congregational Church, Llanelli Llanelli, Caernarfonshire
- Park Street Primitive Methodist Chapel, Newtown Newtown, Montgomeryshire
- Parliament for Wales Campaign: Merioneth county committee Merionethshire;Gwynedd
- Pembrey harbour Pembrey, Carmarthenshire
- Pembrey tithes Pembrey, Carmarthenshire
- Pembroke Mail Pembroke, Pembrokeshire
- Pembroke Yeomanry Cavalry Pembroke, Pembrokeshire
- Pembrokeshire Against Radar Campaign (PARC) Pembrokeshire;Dyfed
- Pembrokeshire and Cardiganshire Association of English Congregational Churches Pembrokeshire;Dyfed
- Pembrokeshire Conservative Association Pembrokeshire;Dyfed
- Pembrokeshire County Court Pembrokeshire;Dyfed
- Pembrokeshire Court of Great Sessions Pembrokeshire;Dyfed
- Pembrokeshire elections Pembrokeshire;Dyfed
- Pembrokeshire Fox Hunt Pembrokeshire;Dyfed
- Pembrokeshire Home Guard Pembrokeshire;Dyfed
- Pembrokeshire Liberal Association Pembrokeshire;Dyfed
- Pembrokeshire lieutenancy Pembrokeshire;Dyfed
- Pembrokeshire militia Pembrokeshire;Dyfed
- Pembrokeshire National Savings committees Pembrokeshire;Dyfed
- Pembrokeshire Patriotic Fund Pembrokeshire;Dyfed
- Pembrokeshire Quarter Session and County Courts Pembrokeshire;Dyfed
- Pembrokeshire Volunteers Pembrokeshire;Dyfed
- Pembrokeshire Welsh Congregational Union Pembrokeshire;Dyfed
- Pembrokeshire: sheriff Pembrokeshire;Dyfed
- Pen Dinas Excavation Fund Pen Dinas, Cardiganshire
- Penarth Congregational Chapel, Llanfair Caereinion Llanfair Caereinion, Montgomeryshire
- Penbryn parish Penbryn, Cardiganshire
- Pen-cae Congregational Chapel, Llannarth Llannarth, Cardiganshire
- Pencerrig estate Pencerrig, Radnorshire
- Pencraig Estate Pencraig, Anglesey
- Pen-dre Congregational Church, Llanfyllin Llanfyllin, Montgomeryshire
- Pendref Congregational Church, Bangor Street, Llanbeblig, Caernarfon Caernarfon, Caernarfonshire;Llanbeblig, Caernarfonshire
- Penegoes parish Penegoes, Montgomeryshire
- Penhryn Quarry strike Bethesda, Caernarfonshire
- Peniel Calvinistic Methodist Chapel, Carno Carno, Montgomeryshire
- Peniel Congregational Chapel, Aberaeron Aberaeron, Cardiganshire
- Peniel Wesleyan Methodist Chapel, Llandyssul Llandyssul, Cardiganshire
- Pen-llwyn Calvinistic Methodist Chapel, Melindwr Melindwr, Cardiganshire
- Penllyn Calvinistic Methodist sunday schools Penllyn, Caernarfonshire
- Penllyn District Nursing Association Penllyn, Caernarfonshire
- Penmon lighthouse, Anglesey Penmon, Anglesey
- Penmorfa Calvinistic Methodist Chapel, Penbryn Penbryn, Cardiganshire
- Pennal Calvinistic Methodist Chapel Pennal, Merionethshire
- Pennal Wesleyan Methodist Chapel Pennal, Merionethshire
- Pennant Calvinistic Methodist Chapel, Llanbryn-mair Llanbryn-mair, Montgomeryshire
- Pennant estate, Montgomeryshire Pennant, Montgomeryshire
- Penparcau National School, Aberystwyth Aberystwyth, Cardiganshire
- Penrhiw Calvinistic Methodist Chapel Penrhiw, Cardiganshire
- Penrhyn Slate Quarry Benefit Club Penrhyn, Caernarfonshire
- Penrhyndendraeth parish Penrhyndendraeth, Merionethshire
- Penri Baptist church, Chester Chester, Cheshire
- Pen-Sarn (English) Calvinistic Methodist Chapel, Abergele Abergele, Denbighshire
- Pen-Sarn Calvinistic Methodist Chapel, Abergele Abergele, Denbighshire
- Pentrepoeth Baptist Church, Pwllheli Pwllheli, Caernarfonshire
- Pentre-ty-gwyn Congregational Chapel, Llanfair-ar-y-bryn Llanfairarybryn, Carmarthenshire
- Penuel Baptist Chapel, Carmarthen Carmarthen, Carmarthenshire
- Penuel Baptist Church, Bangor Bangor, Caernarfonshire
- Penuel Baptist Church, Rhosllanerchrugog Rhosllanerchrugog, Denbighshire
- Penuel Calvinistic Methodist Chapel, Llangynog Llangynog, Montgomeryshire
- Pen-uwch Calvinistic Methodist Chapel, Llangeitho Llangeitho, Cardiganshire
- Pen-y-bont Baptist Church, Llandyssul Llandyssul, Cardiganshire
- Pen-y-bryn Baptist Chapel, Llangollen Llangollen, Denbighshire
- Pen-y-bryn Calvinistic Methodist Chapel, Cefn Mawr Cefn Mawr, Denbighshire
- Penycae Conservative Association Penycae, Denbighshire
- Pen-y-cefn Calvinistic Methodist Chapel, Llansannan Llansannan, Denbighshire
- Pen-y-coed (Pencoedgleision) Baptist Chapel, Betws Bledrws Betws Bledrws, Cardiganshire
- Pen-y-garn Calvinistic Methodist District Meeting Pen-y-garn, Cardiganshire
- Pen-y-graig Congregational Chapel, Llandyfaelog (Llandefeilog) Llandyfaelog, Carmarthenshire;Llandefeilog, Carmarthenshire
- Pen-y-Groes Congregational Church Pen-y-groes, Caernarfonshire
- Pen-y-groes Congregational Church, Whitechurch Pen-y-groes, Pembrokeshire;Whitechurch, Pembrokeshire
- Peterborough city elections Peterborough, Northamptonshire
- Peterston land tax Peterston, Glamorgan
- Peterwell estate, Lampeter Peterwell, Cardiganshire
- Pharmaceutical Society of Great Britain: Cardiganshire Cardiganshire;Dyfed
- Philadelphia Baptist Chapel, Swansea Swansea, Glamorgan
- Philadelphia Calvinistic Methodist Church, Morriston Morriston, Glamorgan
- Philadelphia Congregational Chapel, Llangunnor (Llangynnwr) Llangunnor, Carmarthenshire;Llangynnwr, Carmarthenshire
- Picton Castle Church of England School and Sunday School Picton Castle, Pembrokeshire
- Pierce Lloyd, Lligwy estate Lligwy, Anglesey
- Pigeonsford, Llangrannog Pigeonsford, Cardiganshire
- Pisgah Congregational Church Sunday School, Talgarreg Talgarreg, Cardiganshire
- Pisgah Congregational Church, Talgarreg Talgarreg, Cardiganshire
- Pitchford Hall Pitchford Hall, Shropshire
- Pitchford parish Pitchford, Shropshire
- Pitchford parish charities Pitchford, Shropshire
- Plaid Cymru
- Plaid Cymru: Aberdare area committee Aberdare, Glamorgan
- Plaid Cymru: Bangor office Bangor, Caernarfonshire
- Plaid Cymru: Cardiff area Cardiff, Glamorgan
- Plaid Cymru: Etholaeth Ceredigion Cardiganshire;Dyfed
- Plaid Cymru: Gwent region Monmouthshire;Gwent
- Plaid Cymru: Hydro group
- Plas Aberporth, Aber-porth Aber-porth, Cardiganshire
- Plumesgate hundred land tax Plumesgate, Suffolk
- Polish Society of Cardiganshire Cardiganshire;Dyfed
- Pont Newydd Calvinistic Methodist Chapel, LLangynyw Llangynyw, Montgomeryshire
- Pontardulais Distress and Canteen Fund Pontarddulais, Glamorgan
- Pontardulais Evacuees Welfare Committee Pontarddulais, Glamorgan
- Ponterwyd Calvinistic Methodist Chapel, Cwmrheidol Cwmrheidol, Cardiganshire
- Pontesbury parish Pontesbury, Shropshire
- Pontrhydfendigaid Primary School Pontrhydfendigaid, Cardiganshire
- Pontsaeson Methodist Chapel
- Pontyberem parish Pontyberem, Carmarthenshire
- Pool (Welshpool) parish Pool, Montgomeryshire
- Port of Conway Conwy, Caernarfonshire
- Port Talbot Free Church Federal Council Port Talbot, Glamorgan
- Portland Street Congregational Chapel, Aberystwyth Aberystwyth, Cardiganshire
- Portmadoc and District Liberal Club Portmadoc, Caernarfonshire
- Portmadoc Harbour Trust Portmadoc, Caernarfonshire
- Portmadoc Literary and Debating Society Portmadoc, Caernarfonshire
- Powys Provincial Eisteddfod (Eisteddfod Talaith Powys): Llanfyllin Llanfyllin, Montgomeryshire
- Powys Provincial Eisteddfod: Carno 1967 Carno, Montgomeryshire
- Powys Provincial Eisteddfod: Oswestry 1896 Oswestry, Shropshire
- Powysland Club Welshpool, Montgomeryshire
- Powysland Museum Welshpool, Montgomeryshire
- Prendergast Burial Board Predergast, Pembrokeshire
- Presbyterian Church of Wales Wales
- Presbyterian Church of Wales, Clynnog Clynnog, Caernarfonshire
- Presbyterian Church of Wales, London London
- Presbyterian Church of Wales, Shrewsbury Shrewsbury, Shropshire
- Presbyterian College, Carmarthen Carmarthen, Carmarthenshire
- Preseli Anti-Nuclear Group Dyfed
- Press Benefit and Superannuation Society for South Wales and Monmouthshire
- Prestatyn and District Ministers Fraternal Prestatyn, Flintshire
- Prestatyn parish Prestatyn, Flintshire
- Primrose
- Principality of Wales
- Prosiect Addysg Ddwyieithog Y Cyngor Ysgolion
- Providence Baptist Chapel, Cwm-du, Llandeilo Llandeilo, Carmarthenshire
- Providence Wesleyan Methodist Chapel, Garthmyl, Berriew Berriew, Montgomeryshire
- Provisional Arms of Wales
- Public Inquiry into the Aberfan Tip Disaster Aberfan, Glamorgan
- Pumpsaint Calvinistic Methodist Church Pumpsaint, Carmarthenshire
- Pwllheli Borough Pwllheli, Caernarfonshire
- Pwllheli Hunt Pwllheli, Caernarfonshire
- Pwllheli Ministers Fraternal Pwllheli, Caernarfonshire
- Pwllheli National School Pwllheli, Caernarfonshire
- Pwllheli Petty Sessions Pwllheli, Caernarfonshire
- Pwyllgor Datblygu Addysg Gymraeg (committee for the development of education in Welsh)
- Qualifications, Curriculum and Assessment Authority for Wales Wales
- Queen Elizabeth High School, Carmarthen Carmarthen, Carmarthenshire
- Queen Mary's Aberystwyth Needlework Guild: Surgical Requisites Association Aberystwyth, Cardiganshire
- Queen Street/St Paul's Wesleyan Methodist Chapel, Aberystwyth Aberystwyth, Cardiganshire
- Queens Diamond Jubilee Celebrations, Welshpool Welshpool, Montgomeryshire
- Queens Road Welsh Independent Chapel, Manchester Manchester, Lancashire
- Queen's Road Weslayan Methodist Chapel, Aberystwyth Aberystwyth, Cardiganshire
- Radnor Court of Great Sessions Radnorshire;Powys
- Radnor Territorial and Auxiliary Forces Association Radnorshire;Powys
- Radnorshire Agricultural committee Radnorshire;Powys
- Radnorshire elections Radnorshire;Powys
- Radnorshire militia Radnorshire;Powys
- Radnorshire Quarter Sessions Radnorshire;Powys
- Radnorshire Society, London London
- Radnorshire Turnpikes Radnorshire;Powys
- Raglan and Usk Rural Deanery Monmouthshire;Gwent
- Ramoth Baptist Chapel, Llanfrothen Llanfrothen, Merionethshire
- Ramoth Baptist Church, Aber-cuch Aber-cuch, Pembrokeshire
- Ramoth Baptist Church, Hirwaun Hirwaun, Glamorgan
- Red Cross Agriculture Fund (Rural Pennies Section): Haverfordwest area Haverfordwest, Pembrokeshire
- Red Cross Knight, barque, of Swansea Swansea, Glamorgan
- Red Roses Calvinistic Methodist Chapel, Eglwys Cymmin Eglwys Cymmin, Carmarthenshire
- Rees Davies evening school, Talgarreg Talgarreg, Cardiganshire
- Rehoboth Baptist Church, Newcastle Emlyn Newcastle Emlyn, Carmarthenshire
- Rehoboth Calvinistic Methodist Chapel, Hakin Hakin, Pembrokeshire
- Rehoboth Calvinistic Methodist Chapel, Llanelltyd Llanelltyd, Merionethshire
- Rehoboth Calvinistic Methodist Chapel, Llangadfan Llangadfan, Montgomeryshire
- Rehoboth Calvinistic Methodist Chapel, Llangollen Llangollen, Denbighshire
- Rehoboth Calvinistic Methodist Chapel, Milford Milford Haven, Pembrokeshire
- Rehoboth Calvinistic Methodist Chapel, Taliesin Taliesin, Cardiganshire
- Rehoboth Calvinistic Methodist Chapel, Tre-Taliesin Tre-Taliesin, Cardiganshire
- Religious Education Movement Wales (REMW) Wales
- Renown, brig
- Resolution (3), east indiaman
- Resolven Cricket Club Resolven, Glamorgan
- Resolven Ecclesiastical Parish Resolven, Glamorgan
- Revd Thomas Owen, Congregational minister, Tal-y-sarn Tal-y-sarn, Caernarfonshire
- Reverend John Jenkins' School, Abbey Square, Chester Chester, Cheshire
- Rhaeadr Congregational Church Rhaeadr, Radnorshire
- Rhayader Recreation Club Rhayader, Radnorshire
- Rhigos Wesleyan Chapel Rhigos, Glamorgan
- Rhiwbach Slate Quarry Workmen's Benefit Society, Ffestiniog Ffestiniog, Merionethshire
- Rhondda Borough Labour Party and Trades Council Rhondda, Glamorgan
- Rhondda Conservative and Unionist Association Rhondda, Glamorgan
- Rhondda Constituency Labour Party Rhondda, Glamorgan
- Rhondda East Constituency Labour Party Rhondda, Glamorgan
- Rhondda Welsh Baptist Chapel, Hopkinstown Hopkinstown, Glamorgan
- Rhondda West Divisional Labour Party Rhondda, Glamorgan
- Rhos and District Miners Union Rhos, Denbighshire
- Rhos Welsh Baptist Chapel, Mountain Ash Mountain Ash, Glamorgan
- Rhoscolyn Calvinistic Methodist Chapel Rhoscolyn, Anglesey
- Rhosllanerchrugog Miners Association Rhosllanerchrugog, Denbighshire
- Rhosllanerchrugog Unionist Association Rhosllanerchrugog, Denbighshire
- Rhosycaerau Congregational Church Rhosycaerau, Pembrokeshire
- Rhuddlan Borough Rhuddaln, Flintshire
- Rhydlydan Calvinistic Methodist Chapel, Pentrefoelas Pentrefoelas, Denbighshire
- Rhydwilym Baptist Church Rhydwilym, Carmarthenshire
- Rhyd-wyn Baptist Chapel, Llanrhuddlad Llanrhuddlad, Anglesey
- Rhydyfelin Friendly Society, Melinbyrhedyn Melinbyrhedyn, Montgomeryshire
- Rhyd-y-parc Unitarian Chapel, Eglwys Fair a Churig Eglwysfair a Churig, Carmarthenshire
- Rhymney and Abertysswg Trades and Labour Council Rhymney, Monmouthshire;Abertysswg, Monmouthshire
- Rhymney Dairymens Association Rhymney, Monmouthshire
- Rhymney Valley Campaign Against the Poll Tax Glamorgan
- Rice Powell's Charity
- Richard Hughes of Castellior Castellior, Anglesey
- River Dee Conservancy Cheshire;Cheshire
- Robert Howard of Conway Conwy, Caernarfonshire
- Robert Small
- Rogerstone window tax Rogerstone, Monmouthshire
- Rosemary Lane Horeb Baptist Chapel, Beaumaris Beaumaris, Anglesey
- Royal Cambrian Academy of Art
- Royal Cardigan Militia Cardiganshire;Dyfed
- Royal Commission for the Exhibition of 1851
- Royal Commission on Civil Liability and Compensation for Personal Injury
- Royal Commission on Land in Wales
- Royal Commission on the Ancient and Historical Monuments of Wales
- Royal Commission on the Press
- Royal Field Artillery
- Royal Household and Wardrobe
- Royal Monmouthshire Royal Engineers (Militia) Monmouthshire;Gwent
- Royal National Lifeboat Institution: Aberystwyth branch Aberystwyth, Cardiganshire
- Royal National Lifeboat Institution: Porthdinlleyn branch Porthdinlleyn, Caernarfonshire
- Royal Society for the Protection of Birds Sandy, Bedfordshire
- Royal Welch Fusiliers (23rd Foot)
- Royal Welsh Agricultural Show
- Royal Welsh Agricultural Society
- Ruabon charity Ruabon, Denbighshire
- Ruthin British School Ruthin, Denbighshire
- Ruthin Calvinistic Methodist Association Ruthin, Denbighshire
- Ruthin Corvisers Ruthin, Denbighshire
- Ruthin Cricket Club Ruthin, Denbighshire
- Salem Baptist Chapel, Amlwch Amlwch, Anglesey
- Salem Baptist Chapel, Cynwyl Gaeo Cynwyl Gaeo, Carmarthenshire
- Salem Baptist Chapel, Newborough Newborough, Anglesey
- Salem Baptist Church, Abergele Abergele, Denbighshire
- Salem Baptist Church, Blaenau Gwent Blaenau Gwent, Monmouthshire
- Salem Baptist Church, Blaina Blaina, Monmouthshire
- Salem Baptist Church, Ferryside Ferryside, Carmarthenshire
- Salem Baptist Church, Llanrhaeadr-ym-Mochnant Llanrhaeadr-ym-Mochnant, Denbighshire
- Salem Baptist Church, Pen-y-cae Pen-y-cae, Denbighshire
- Salem Calvinistic Methodist Chapel, Dolgellau Dolgellau, Merionethshire
- Salem Coedgruffydd Congregational Church Salem, Cardiganshire
- Salem Presbyterian Church, Aberystwyth Aberystwyth, Cardiganshire
- Salem Scotch Baptist Church, Trawsfynydd Trawsfynydd, Merionethshire
- Salem Welsh Calvinistic Methodist Church, Canton, Cardiff Cardiff, Glamorgan
- Salem Wesleyan Methodist Chapel, Aberaeron Aberaeron, Cardiganshire
- Saltney enclosure Saltney, Flintshire
- Samuel Cunard
- Samuel Williams, Pembs estates Pembrokeshire;Dyfed
- Sandfields Presbyterian Church, Port Talbot Port Talbot, Glamorgan
- Saron Calvinistic Methodist Chapel, Llandderfel Llandderfel, Merionethshire
- Saron Calvinistic Methodist Chapel, Pont-dol-goch (Llannwnog) Pont-dol-goch, Montgomeryshire;Llannwnog, Montgomeryshire
- Saron Congregational Chapel, Llangeler Llangeler, Carmarthenshire
- Saron Welsh Calvinistic Methodists, Friog Friog, Merionethshire
- Saron Welsh Congregational Church, Troed-y-rhiw Merthyr Tydfil, Glamorgan
- Sawel Benefit Society, Llansawel Llansawel, Carmarthenshire
- Scybor-y-Coed Parish Council Scybor-y-coed, Cardiganshire
- Sea Queen
- Secondary Heads Association
- Sefydliad Dyngarol Undeb Merthyr (Merthyr Unity Philanthropic Institution) Merthyr, Carmarthenshire
- Seion Baptist Church, Treforus
- Seion Calvinistic Methodist Chapel, Bryneglwys Bryneglwys, Denbighshire
- Seion Calvinistic Methodist Chapel, Corwen Corwen, Merionethshire
- Seion Calvinistic Methodist Chapel, Llandrygarn Llandrygarn, Anglesey
- Seion Calvinistic Methodist Chapel, Llanrwst Llanrwst, Denbighshire
- Seion Congregational Church, Chapel Street, Holywell Holywell, Flintshire
- Seion Congregational Church, Conwy Conwy, Caernarfonshire
- Seion Welsh Baptist Church, Barmouth Barmouth, Merionethshire
- Seion Welsh Baptist Church, Cefn Mawr Cefn Mawr, Denbighshire
- Seion Welsh Baptist Church, Cwmaman Cwmaman, Glamorgan
- Severn Road Congregational Chapel, Cardiff Cardiff, Glamorgan
- Sharon Baptist Church, Goytre Goytre, Monmouthshire
- Shaw Street Welsh Wesleyan Methodist Circuit, Liverpool Liverpool, Lancashire
- Shelter Cymru Wales
- Shiloh Calvinistic Methodist Chapel, Llanelli Llanelli, Carmarthenshire
- Shiloh Wesleyan Methodist Chapel, Clatter (Llanwnnog) Llanwnnog, Montgomeryshire
- Shiloh/Seilo Calvinistic Methodist Chapel, Aberystwyth Aberystwyth, Cardiganshire
- Shire Horse Society: Mid-Cardiganshire branch Cardiganshire;Dyfed
- Shrewsbury Abbey Shrewsbury, Shropshire
- Shrewsbury borough elections Shrewsbury, Shropshire
- Shrewsbury Company of Shearmen Shrewsbury, Shropshire
- Shrewsbury Company of Weavers and Clothiers Shrewsbury, Shropshire
- Shropshire elections Shropshire;Shropshire
- Shropshire Fox Hounds Shropshire;Shropshire
- Shropshire militia Shropshire;Shropshire
- Shropshire: sheriff Shropshire;Shropshire
- Siloa Congregational Church, Cwmerfyn Cwmerfyn, Cardiganshire
- Siloam and Ceunant Calvinistic Methodist chapels, Llanfrothen Llanfrothen, Caernarfonshire
- Siloam Baptist Chapel, Brynamman Brynamman, Carmarthenshire
- Siloam Baptist Church, Kidwelly Kidwelly, Carmarthenshire
- Siloam Wesleyan Methodist Chapel, Aberystwyth Aberystwyth, Cardiganshire
- Siloh Welsh Baptist Chapel, Tredegar Tredegar, Monmouthshire
- Sincerity, of Aberdovey
- Sion Independent Chapel, Ceulan y Maesmawr Ceulan Y Maesmawr, Cardiganshire
- Sir Leonard Twiston Davies, Rockfield Park Rockfield, Monmouthshire
- Sir Mark Wood of Pall Mall, London Monmouthshire;Glamorgan;Gwent
- Sir Nathaniel Lloyd's Charity, Oswestry and Whittington Oswestry, Shropshire;Whittington, Shropshire
- Sir William Hamilton Pembrokeshire;Dyfed
- Sir William Maurice, deputy vice admiral of North Wales
- Sirhowy Valley Baptist Union and Carmel Baptist Church Sirhowy, Monmouthshire
- Sketty and District Nursing Association Swansea, Glamorgan
- Slebech parish Slebech, Pembrokeshire
- Soar Baptist Chapel, Llanfaethlu Llanfaethlu, Anglesey
- Soar Baptist Church, Llwynhendy (Llanelli rural) Llanelli, Carmarthenshire
- Soar Calvinistic Methodist Chapel, Borth Borth, Cardiganshire
- Soar Congregational Church, Lampeter Lampeter, Cardiganshire
- Soar Welsh Congregational Church, Llanbadarn Fawr, Parsel Isaf-yn-Dre Llanbadarn Fawr, Cardiganshire;Parsel Isaf-yn-dre, Cardiganshire
- Social Democratic Party Welsh Council
- Society for Promoting Christian Knowledge: Aberystwyth district Aberystwyth, Cardiganshire
- Society for Promoting Christian Knowledge: Llanidloes Llanidloes, Montgomeryshire
- Society for Promoting Christian Knowledge: Newcastle Emlyn branch Newcastle Emlyn, Carmarthenshire
- Society for the Diffusion of Useful Knowledge in Wales
- Society of Dairy Technology: Wales section
- Society of Free Catholics Llanarth, Cardiganshire
- Solva Roads of Remembrance Solva, Pembrokeshire
- Solway Prince
- Sons of St David Friendly Society: Llanfyllin Llanyfllin, Montgomeryshire
- South African War Fund, Merioneth Merionethshire;Gwynedd
- South Glamorgan Labour Party South Glamorgan
- South Lancashire Regiment (Prince of Wales's Volunteers) (40/82th Foot) Lancashire
- South Pembrokeshire Congregational Association Pembrokeshire;Dyfed
- South Wales Baptist College, Cardiff Cardiff, Glamorgan
- South Wales Borderers (24th Foot)
- South Wales Football Association
- South Wales Methodist Circuit District Synods
- South Wales Miners Federation: Tor-y-graig lodge
- South Wales Women's Miners Support Group
- South Wales Womens Temperance Union
- South West Wales Presbytery Wales
- Southport Welsh Society Southport, Lancashire
- SS Express
- SS Frederick Knight
- SS Kolyma
- SS Tyninghame
- St Andrew's Presbyterian Church, Pembroke Dock Pembroke Dock, Pembrokeshire
- St Asaph diocese St Asaph, Flintshire
- St Asaph parish St Asaph, Flintshire
- St Asaph Town St Asaph, Flintshire
- St Athan parish St Athan, Glamorgan
- St Davids diocese St Davids, Pembrokeshire
- St Davids diocese estates St Davids, Pembrokeshire
- St David's Forum
- St David's Presbyterian Church, Kenfig Hill Bridgend, Glamorgan
- St David's School, independent girls school, Ashford Ashford, Kent;London;Clerkenwell, Middlesex;Camden, Middlesex;Powis Castle, Montgomeryshire
- St David's Society of Hong Kong
- St David's Unity of Ivorites: Aberdare district, Blaenllechau Lodge Blaenllechau, Glamorgan
- St David's Unity of Ivorites: Aberystwyth district, Castell Gwalter Lodge, Llanfihangel Genau'r-glyn Llanfihangel Geneu'r Glynn, Cardiganshire
- St David's Unity of Ivorites: Aberystwyth district, Ysbyty Ystwyth Lodge Ysbyty Ystwyth, Cardiganshire
- St David's Unity of Ivorites: Cwmavon and Neath district, Prince Llewelyn Lodge Cwmavon, Glamorgan;Neath, Glamorgan
- St David's Unity of Ivorites: Godre'rgraig, Ystalyfera Godre'rgraig, Glamorgan
- St David's Unity of Ivorites: Llandeilo district, Glanamman Lodge Llandeilo, Carmarthenshire
- St David's Unity of Ivorites: Troedyrhiw district lodges Troedyrhiw, Glamorgan
- St David's Unity of Ivorites: Tyssul Lodge, Llandyssul Llandyssul, Cardiganshire
- St Dogmaels, Poor Law Institution at Albro Castle St Dogmaels, Pembrokeshire
- St George schools St George, Denbighshire
- St Helens Welsh Baptist Church St Helens, Lancashire
- St John Wesleyan Methodist Chapel, Carno Carno, Montgomeryshire
- St Johns English Congregational Church, Flint Flint, Flintshire
- St Johns Wesleyan Methodist Chapel, Llandrindod Wells Llandrindod Wells, Radnorshire
- St Michael and All Angels parish, Aberystwyth Aberystwyth, Cardiganshire
- St Nicholas parish St Nicholas, Pembrokeshire
- St Paul's Methodist Church Annual Eisteddfod, Aberystwyth Aberystwyth, Cardiganshire
- St Paul's Square Baptist Church, Liverpool Liverpool, Lancashire
- St Peter's College, Prior Park, Bath Bath, Somerset
- St Stephen parish, Old Radnor Old Radnor, Radnorshire
- St Werburgh's Abbey, Chester (later Cathedral) Chester, Cheshire
- Staffordshire: sheriff Staffordshire;Staffordshire
- Stamp Office, Machynlleth Machynlleth, Montgomeryshire
- Stanhope Street Welsh Baptist Chapel, Liverpool Liverpool, Lancashire
- Star, sloop
- Stockton-on-Tees Welsh Wesleyan Methodist Circuit Stockton-on-Tees, Durham
- Strata Florida Abbey Strata Florida, Cardiganshire
- Strata Marcella Abbey Montgomeryshire;Powys
- Struet Calvinistic Methodist Chapel, Brecon Brecon, Brecknockshire
- Swansea School Board Swansea, Glamorgan
- Swansea Union of Social Service Swansea, Glamorgan
- Swansea volunteers Swansea, Glamorgan
- Swansea yeomanry Swansea, Glamorgan
- Sychnant Calvinistic Methodist Chapel, St Harmon St Harmon, Radnorshire
- Sylatin parish Sylatin, Shropshire
- Sylph, brigantine
- Tabernacl Calvinistic Methodist Chapel, Ruthin Ruthin, Denbighshire
- Tabernacle and Trefeini Calvinistic Methodist Churches, Blaenau Festiniog Blaenau Festiniog, Merionethshire
- Tabernacle Baptist Chapel, Bodedern Bodedern, Anglesey
- Tabernacle Baptist Chapel, Llannerch-y-medd Llannerch-y-medd, Anglesey
- Tabernacle Baptist Church, Brymbo Brymbo, Denbighshire
- Tabernacle Baptist Church, Carmarthen Carmarthen, Carmarthenshire
- Tabernacle Baptist Church, Cwmyoy Cwmyoy, Monmouthshire
- Tabernacle Calvinistic Methodist Chapel, Aberystwyth Aberystwyth, Cardiganshire
- Tabernacle Calvinistic Methodist Chapel, Arddleen (Guilsfield) Guilsfield, Montgomeryshire
- Tabernacle Calvinistic Methodist Chapel, Cardigan (Aberteifi) Cardigan, Cardiganshire;Aberteifi, Cardiganshire
- Tabernacle Calvinistic Methodist Chapel, Garndiffaith, (Abersychan) Abersychan, Monmouthshire
- Tabernacle Welsh Congregational Church, Crewe Crewe, Cheshire
- Tabernacle Welsh Congregational Church, Liverpool Liverpool, Lancashire
- Tabernacle Welsh Congregational Church, Shrewsbury Shrewsbury, Shropshire
- Tabernacle Wesleyan Methodist Chapel, Machynlleth Machynlleth, Montgomeryshire
- Tabor Calvinistic Methodist Chapel, Llangwyryfon Llangwyryfon, Cardiganshire
- Taf Valley Temperance Union Taf Valley, Carmarthenshire
- Talgarth District Highway Board Talgarth, Brecknockshire
- Talsarn fair Talsarn, Cardiganshire
- Talsarnau parish Talsarnau, Merionethshire
- Taltreuddyn estate Taltreuddyn, Anglesey
- Tal-y-bont Agricultural Show Committee Tal-y-bont, Merionethshire
- Talybont and North Cardiganshire Agricultural Show Talybont, Cardiganshire
- Tal-y-bont Baptist Church Tal-y-bont, Cardiganshire
- Tal-y-bont Calvinistic Methodist Chapel, Llanycil Llanycil, Merionethshire
- Tal-y-wern Baptist Church Tal-y-wern, Montgomeryshire
- Tavernspite Turnpike Trust Tavernspite, Pembrokeshire
- The Aberaeron Club (benefit society) Aberaeron, Cardiganshire
- The English Chapel (Calvinistic Methodist), Dolgellau Dolgellau, Merionethshire
- The Fly, smack
- The Welsh Baptist Chapel, London London
- Thomas and John Lewis, clerks of the bills of customs, Wales
- Thomas Molyneux Williams of Penbedw Penbedw, Denbighshire
- Thomas Morgan, Judge Advocate General
- Tivy-side Hunt Pembrokeshire;Dyfed
- Toc H: Presteigne branch Presteigne, Radnorshire
- Tourmaline
- Towyn Anti-Tithe Society Towyn, Merionethshire
- Towyn District King Edward Memorial Towyn, Merionethshire
- Towyn Liberal Committee Towyn, Merionethshire
- Towyn parish Towyn, Merionethshire
- Transport and General Workers Union: 4/780 Presteigne branch Presteigne, Radnorshire
- Trawsfynydd parish Trawsfynydd, Merionethshire
- Tredegar races Tredegar, Monmouthshire
- Tredegar, of Newport
- Trefecca College Trefecca, Brecknockshire
- Trefeglwys Grouped Council Schools Trefeglwys, Montgomeryshire
- Trefeglwys parish Trefeglwys, Montgomeryshire
- Trefriw parish Trefriw, Caernarfonshire
- Tregaron Development Society Tregaron, Cardiganshire
- Tregaron Union School Board Tregaron, Cardiganshire
- Tregaron Wesleyan Methodist Chapel, Caron-is-clawdd Caron-is-clawdd, Cardiganshire
- Tregrug enclosure Tregrug, Monmouthshire
- Treherbert British School Treherbert, Glamorgan
- Trewern Hall estate, Buttington Trewern, Montgomeryshire
- Trinity Chapel, Clydach Clydach, Glamorgan
- Triton, brig, of Cardigan
- Troedrhiwdalar Congregational Chapel, Llanafan Fawr Llanafan Fawr, Brecknockshire
- Troed-yr-aur Parish Council Troedyraur, Cardiganshire
- Troedyraur tithes Troedyraur, Cardiganshire
- Troedyrhiw and District United Choir Troedyrhiw, Glamorgan
- Troedyrhiw Nomads Touring Club Troedyrhiw, Glamorgan
- Ty Cenedl
- Ty Hen Calvinistic Methodist Chapel, Tre-lech a'r Betws Tre-lech A'r Betws, Carmarthenshire
- Ty Mawr Calvinistic Methodist Church Ty Mawr, Cardiganshire
- Ty-Llwyd estate Ty-llwyd, Cardiganshire
- Tylorstown Colliery Explosion Local Relief Fund Tylorstown, Glamorgan
- Tylorstown Explosion Trust Fund Tylorstown, Glamorgan
- Tywyn Silver Band Tywyn, Caernarfonshire
- Ucha'dre Parish Council Ucha'dre, Cardiganshire
- Undeb Amaethwyr Cymru
- Undeb Cerddorol Dirwestwyr Ardudwy (Ardudwy Temperance Union) Ardudwy, Merionethshire
- Undeb Cymanfa Bregethu Annibynwyr, Liverpool Liverpool, Lancashire
- Undeb Cymru Fydd (New Wales Union)
- Undeb Cymru Fydd (New Wales Union): Llanelli branch Llanelli, Carmarthenshire
- Undeb Cymru Fydd (New Wales Union): Montgomeryshire branch Montgomeryshire;Powys
- Undeb Cymru Fydd (New Wales Union): Pontypridd branch Pontypridd, Glamorgan
- Undeb Cymru Fydd (New Welsh Union): South Cardiganshire branch Cardiganshire;Dyfed
- Undeb Dirwestol Dyffryn Cleddau (Vale of Cleddau Temperance Union) Cleddau, Pembrokeshire
- Undeb Dirwestol Dyffryn Taf (Dyffryn Taf Temperance Union) Dyffryn Taf, Pembrokeshire
- Undeb Dirwestol Gogledd Ceredigion (North Cardiganshire Temperance Union) Cardiganshire;Dyfed
- Undeb Dirwestol Merched Cymreig Llundain (London Welsh Womens Temperance Union) London
- Undeb Eglwysi Cymraeg Wallasey Wallasey, Cheshire
- Undeb y Brythoniaid (British Language Union)
- Undeb y Brythoniaid, Birmingham (Birmingham Brithoniaid Union) Birmingham, Warwickshire
- Undeb y Cymdeithasau Cymraeg (Union of Welsh Societies)
- Undeb y Cymdeithasau Cymraeg (Union of Welsh Societies): Annual Welsh Summer School
- Undeb y Cymry ar Wasgar (Union of Welsh Exiles)
- Unemployment Assistance Board
- Unemployment Assistance Board Cardiff District Cardiff, Glamorgan
- Unemployment Assistance Board Sports and Social Club Cardiff District Cardiff, Glamorgan
- Union of Welsh Publishers and Booksellers
- Union of Welsh Teachers
- Union of Young Baptists of Wales
- Union, schooner
- United Lunatic Asylum for Cardigan, Carmarthen, Glamorgan and Pembroke Carmarthenshire;Pembrokeshire;Glamorgan;Cardiganshire;Dyfed
- United Missionary Council for Wales
- United Reformed Church Province of Wales Wales
- University College of North Wales, Bangor: Old Students Association Bangor, Caernarfonshire
- University College of Wales Agricultural Debating Society, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales Celtic Society, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales Cosmopolitan Club, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales Gymnastic Club, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales Literary and Debating Society, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales Music Society, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales Rustics Club, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales Scientific Society, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth/University College London: Joint Labour Club Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth/University College London: Joint Music Union Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Agricultural Club Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Athletics Field committee Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Botanical Club Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Central Athletic Board Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Debates Union Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Eisteddfod Committee Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Film Society Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Inter-College Eisteddfod committees Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Music Department Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Old Students Association Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Sports Committee Aberystwyth, Cardiganshire
- University College of Wales, Aberystwyth: Students' Representative Council Aberystwyth, Cardiganshire
- University of Wales Aberystwyth Ceramic Archive Aberystwyth, Cardiganshire
- University of Wales Central Students' Representative Council
- University of Wales Guild of Students Agricultural Section
- University of Wales Guild of Students Play-Reading Circle
- Upper Vaenor Parish Council Faenor Uchaf, Cardiganshire;Upper Vaenor, Cardiganshire
- Urdd Gobaith Cymru (Welsh League of Youth)
- Urdd National Eisteddfod: Amman Valley Carmarthenshire;Dyfed
- Usk Lancasterian School Usk, Monmouthshire
- Usk parish Usk, Monmouthshire
- Uwch Llifon Temperance Union Llifon, Anglesey
- Uwchaled Nursing Association Uwchaled, Denbighshire
- Vale of Clwyd Welsh Red Clover Growers Association, Denbighshire Denbighshire;Clwyd
- Vale of Glamorgan Liberal Association Glamorgan
- Vale of Glamorgan Social Democratic Party Glamorgan
- Varteg Wesleyan Methodist Chapel, Abersychan Abersychan, Monmouthshire
- Viking, of Barmouth
- Virginia Street Baptist Church, Liverpool Liverpool, Lancashire
- Viscount Sandon
- Volage
- Wales Advisory Body for Local Authority Higher Education
- Wales Deaf Broadcasting Council Wales
- Wales Federation of Young Farmers Clubs Wales
- Wales for the Assembly Campaign
- Wales Rural Development Board Enquiry
- Wales Tourist Board
- Wales Trades Union Council/Cyngor Undebau Llafur Cymru
- Wales Women's National Coalition Wales
- Wallasey Welsh Baptist Chapel Wallasey, Cheshire
- Warwickshire: sheriff Warwickshire;Warwickshire
- Waun-llan Wesleyan Methodist Chapel, Llandybie Llandybie, Carmarthenshire
- Welch Regiment (41/69th Foot)
- Welsh Agricultural Organisation Society Ltd
- Welsh Amateur Music Federation
- Welsh Army Corps
- Welsh Arts Council
- Welsh Assembly of the Methodist Church
- Welsh Association for Social Work Development
- Welsh Association of Community and Town Councils
- Welsh Association of Lecturers in Mathematics in the Area Training Organisation (WALMATO)
- Welsh Baptist Temperance Society: Llanfair Caereinion Llanfair Caereinion, Montgomeryshire
- Welsh Bibliographical Society
- Welsh Bibliographical Society: National Library of Wales branch Aberystwyth, Cardiganshire
- Welsh Calvinistic Methodist Connexion
- Welsh Calvinistic Methodists Wales
- Welsh Charity School, Ashford Ashford, Middlesex
- Welsh Chess Union Wales
- Welsh Circulating Charity Schools
- Welsh Committee of the Social Democratic Party/Liberal Party Alliance
- Welsh Council of Churches
- Welsh Development Agency Cardiff, Glamorgan
- Welsh Film Board (Bwrdd Ffilmiau Cymraeg)
- Welsh Folk Song Society
- Welsh Government Cardiff, Glamorgan
- Welsh Harp Society (Cymdeithas Telynau Cymru)
- Welsh Hospital, South Africa
- Welsh Housing and Development Association
- Welsh Institution, Llandovery Llandovery, Carmarthenshire
- Welsh Language Debating Society, St David's College, Lampeter Lampeter, Cardiganshire
- Welsh Language Interdenominational Committee
- Welsh Liberal Party
- Welsh Library Association
- Welsh Ministers' Fraternal, Liverpool and district Liverpool, Lancashire
- Welsh Music Information Centre Cardiff, Glamorgan
- Welsh Non-County Boroughs Association
- Welsh Plant Breeding Station Cardiganshire;Dyfed
- Welsh Quoits Archive
- Welsh School of Social Service
- Welsh Schoolboys Camp Movement
- Welsh Secondary Schools Association
- Welsh Services Club, London London
- Welsh Town Planning and Housing Trust
- Welsh Troops' Children's Fund
- Welsh Woollen Manufacturers Association
- Welshpool Boating Club Welshpool, Montgomeryshire
- Welshpool Borough Welshpool, Montgomeryshire
- Welshpool Civic Society Welshpool, Montgomeryshire
- Welshpool Dorcas Society Welshpool, Montgomeryshire
- Welshpool English Wesleyan Methodist Circuit Welshpool, Montgomeryshire
- Welshpool Free Public Library Welshpool, Montgomeryshire
- Welshpool National School Welshpool, Montgomeryshire
- Welshpool parish Welshpool, Montgomeryshire
- Welshpool Petty Sessions Welshpool, Montgomeryshire
- Welshpool Second Friendly Society Welshpool, Montgomeryshire
- Welshpool steeplechases Welshpool, Montgomeryshire
- Welshpool Third Friendly Society Welshpool, Montgomeryshire
- Welshpool United Choir Welshpool, Montgomeryshire
- Welshpool War Memorial Welshpool, Montgomeryshire
- Wenniar estate, Glyncesnog Wenniar, Denbighshire
- Wesleyan Methodist Church: Wales
- West Carmarthenshire Congregational Quarterly meeting Carmarthenshire;Dyfed
- West Dereham Abbey West Dereham, Norfolk
- West Street Wesleyan Methodist Chapel, Knighton Knighton, Radnorshire
- Western Sea Fisheries District
- Westmoreland Street Baptist Church, Liverpool Liverpool, Lancashire
- Wheeler Street Welsh Congregational Church, Birmingham Birmingham, Warwickshire
- Whitchurch Free Christian Church Whitchurch, Shropshire
- Whitford (Flintshire) Friendly Society Whitford, Flintshire
- Whittington tithes Whittington, Shropshire
- William Day, Assistant Poor Law Commissioner
- William Evans Williams: Pwllypant Pwll-y-pant, Glamorgan
- William Griffith/Madame de Solignac Monmouthshire;Gwent
- William Jones Committee Llangadfan, Montgomeryshire
- William Wood: Gwernyfed estate Gwernyfed, Brecknockshire
- William, schooner
- Winterbourne Steepleton parish Winterbourne Steepleton, Dorset
- Wiston parish Wiston, Pembrokeshire
- Womens Association of the Welsh Independent Churches
- Womens International League for Peace and Freedom: Aberystwyth branch Aberystwyth, Cardiganshire
- Wood Street Congregational Church and Sunday School, Cardiff Cardiff, Glamorgan
- Woodlands Baptist Church, Birkenhead Birkenhead, Cheshire
- Workers Educational Association
- Wrexham Borough Wrexham, Denbighshire
- Wrexham Borough Museum Wrexham, Denbighshire
- Wrexham Conservative Club Wrexham, Denbighshire
- Wrexham Division Conservative and National Liberal Association Wrexham, Denbighshire
- Wrexham Division Womens Constitutional Association Wrexham, Denbighshire
- Wrexham Ministers Fraternal Wrexham, Denbighshire
- Wye Fisheries Association
- Wyeside Bowmen Brecknockshire;Powys
- Wyeside Farmers Association Brecknockshire;Powys
- Y Coleg Cymraeg Cenedlaethol, Welsh language development body for higher education Wales
- Y Deml Baptist Church and Sunday School, Newport Newport, Monmouthshire
- Y Graig Unitarian Chapel, Trebanos Trebanos, Glamorgan
- Y Gymdeithas Undodaidd Gymreig (Welsh Unitarian Society)
- Ynys estate, Rhydfelan, Pontypridd Pontypridd, Glamorgan
- Ynys Fach Baptist Church Ynyshir, Glamorgan
- York (4), east indiaman
- York Trust and York Clinic for Psychological Medicine, Guy's Hospital London
- Young Mens Christian Association: Aberystwyth Aberystwyth, Cardiganshire
- Young Womens Christian Association: Welsh Division
- Yr Academi Gymreig (The Welsh Academy)
- Yr Hen Gapel Congregational Church, Llanbryn-Mair Llanbryn-mair, Montgomeryshire
- Yr Ymgyrch Newydd yng Nghymru (The Christian Campaign in Wales)
- Ysbytty Ystiryth parish Ysbytty Ystiryth, Cardiganshire
- Ysbyty Ystwyth Calvinistic Methodist Chapel Ysbyty Ystwyth, Cardiganshire
- Ysgol Sir Bethesda Bethesda, Caernarfonshire
- Yspytty Ifan parish Yspytty Ifan, Denbighshire
- Ystradfellte parish Ystradfellte, Brecknockshire
- Ystradgynlais Lower parish Ystradgynlais Lower, Brecknockshire
- Ystradmeurig School Ystradmeurig, Cardiganshire
- Ystradyfodwg parish Ystradyfodwg, Glamorgan
- Zion Baptist Chapel, Llanidloes Llanidloes, Montgomeryshire
- Zion Chapel, Carmarthen Carmarthen, Carmarthenshire
- Zoar Baptist Church, Rhymney Rhymney, Glamorgan
- Zoe
Persons (2066)
- Llewellyn, Sir David Treharne, (1916-1992), politician
- Aaron, Richard Ithamar, (1901-1987), philosopher
- Abse, Dannie, (1923-2014), poet novelist and dramatist
- Abse, Leo, (1917-2008), Labour MP
- Acheson, Dean, (1893-1971), American Secretary of State
- Acland, Sir Arthur Herbert Dyke, (1847-1926), 13th Baronet of Columb John, 13th Baronet, MP
- Adami, John George, (1862-1926), pathologist
- Adams, David William, (c1797-1855), curate Boulston, Pembrokeshire;Freystrop, Pembrokeshire;Haverfordwest, Pembrokeshire
- Adams, Sam, (b1934), poet, critic and editor
- Adams, William George Stewart, (1874-1966), public servant and warden of All Souls College Oxford
- Adcock, Arthur St John, (1864-1930), novelist
- Addams-Williams, William, (1787-1861), MP for Monmouthshire
- Ainger, Nicholas Richard, (b 1949), MP
- Ainslie, Sir Robert, (1730-1812), 1st Baronet Diplomat MP Numismatist
- Airy, Sir George Biddell, (1801-1892), Knight, astronomer and mathematician
- Aitken, William Maxwell, (1879-1964), 1st Baron Beaverbrook, newspaper proprietor
- Alban Davies, Jenkin, (1901-1968), Member of the Independent Television Authority
- Alcock, Leslie, (1925-2006), archaeologist
- Alexander, Ewart, (b 1931), playwright
- Allanson, Cecil John Lyons, (1877-1943), Colonel, colonial administrator Gallipoli, Turkey
- Allen, Anthony, (d 1754), Lawyer and Antiquary
- Allen, Charles Francis Egerton, (1847-1927), MP
- Allen, Lancelot Baugh, (1774-1845), Warden and Master of Dulwich College
- Anderson, John Redwood, (1883-1964), Poet
- Andrews, Leighton, (b 1957), politician
- Anne, (1665-1714), Queen of Great Britain and Ireland
- Anwyl, Sir Edward, (1866-1914), Knight, Celtic scholar
- Anwyl, John Bodfan, (1875-1949), Welsh scholar and Congregational minister Chester, Cheshire;Carmarthen, Carmarthenshire;Pontypridd, Glamorgan;Aberystwyth, Cardiganshire
- ap Griffith, Ywain Goronwy, (1882-1963), Architect
- Apivor, Denis, (b 1916), Composer
- Archdall, Henry Kingsley, (1886-1976), Chancellor of St Davids
- Archer, Richard Lawrence, (1874-1953), Educationalist
- Archer, Sir Simon, (1581-1662), Knight, antiquary and MP
- Archer, William George, (1907-1979), Indian civil servant and historian
- Arnold, Matthew, (1822-1888), poet and critic
- Arnot, Robin Page, (1890-1986), communist writer and historian
- Arundell, Mary Anne, (1787-1845), Baroness Arundell of Wardour
- Ashton, Charles, (1848-1899), Bibliographer
- Ashton, Glyn Mills, (1919-1991), Keeper of the Salisbury Library University College Cardiff
- Asquith, Herbert Henry, (1852-1928), 1st Earl of Oxford and Asquith, statesman
- Astor, Nancy Witcher, (1879-1964), Viscountess Astor, MP
- Atterbury, Francis, (1663-1732), Dean of Westminster and Bishop of Rochester
- Attlee, Clement Richard, (1883-1967), 1st Earl Attlee, statesman
- Auden, Wystan Hugh, (1907-1973), poet York, Yorkshire
- Austin, Sarah, (1793-1867), translator
- Aydelotte, Frank, (1880-1956), American Lawyer and Educationist
- Backhouse, James, (1794-1869), Quaker Missionary Naturalist
- Bagot, Lewis, (1740-1802), Bishop of St Asaph
- Bain, John Vernon, (1922-2007), poet
- Baker, Elizabeth, (c 1720-1799), diarist
- Baker, Sir Herbert, (1862-1946), Knight, architect
- Baldwin, Stanley, (1867-1947), 1st Earl Baldwin of Bewdley, statesman
- Balfour, Arthur James, (1848-1930), 1st Earl of Balfour, statesman
- Ballinger, Sir John, (1860-1933), Knight Educationist and Librarian
- Banks, Sir Joseph, (1743-1820), Knight, Baronet, naturalist
- Barbier, Lucie, (1875-1963), singer and pianist
- Baring-Gould, Sabine, (1834-1924), rector of Lew Trenchard, antiquary, folklorist and hymn writer
- Barlow, Thomas, (1607-1691), Bishop of Lincoln
- Barnes, Sir George Reginald, (1904-1960), Knight, Principal of University College of North Staffordshire
- Barnie, John E, (b1941), poet, writer and former editor of "Planet" magazine Abergavenny, Monmouthshire
- Barnwell, Edward Lowry, (1813-1887), antiquary and schoolmaster
- Barrington, Daines, (1727-1800), lawyer, antiquary and naturalist
- Barry, James, (1667-1748), 4th Earl of Barrymore
- Bartlett, David Daniel, (1900-1977), Bishop of St Asaph Cambridge, Cambridgeshire;St Asaph, Flintshire;Lampeter, Cardiganshire;Pembroke Dock, Pembrokeshire
- Barton, Cecilia, (fl 1952-1999), politician
- Bassett, Thomas, (fl 1906-1943), Baptist Minister
- Bateman, David William, (1898-1967), Artist
- Baxter, William, (1650-1723), Scholar
- Beaumont, James, (d 1750), Methodist preacher
- Bebb, William Ambrose, (1894-1955), writer and historian
- Behrens, Sir Leonard Frederick, (1890-1978), Knight, politician
- Bell, Carys, (1930-2001), author and broadcaster
- Bell, Sir Harold Idris, (1879-1967), Knight, papyrologist, classical historian and Welsh scholar Epworth, Lincolnshire
- Bell, James, (d 1740), Minister of Logie
- Benjamin, Thomas Cynfelyn, (1850-1925), Nonconformist Minister Poet as Cynfelyn
- Bennett, Nicholas, (1823-1899), musician and historian
- Bennett, Nicholas Jerome, (b 1949), Conservative MP
- Bennett, Richard, (1860-1937), historian
- Benn-Walsh, Sir John, (1759-1825), 1st Baronet Indian Administrator
- Bentham, Thomas, (1513-1578), Bishop of Lichfield and Coventry
- Bentley, George, (1828-1895), publisher and author
- Bentley, Richard, (1794-1871), publisher
- Bere, Cliff, (1915-1997), Welsh nationalist
- Beresford, John Davys, (1873-1947), Author
- Berry, Ron, (1920-1997), novelist
- Best, Keith Lander, (b 1949), Conservative MP
- Bethell, Christopher, (1773-1859), Bishop of Bangor
- Bevan, Aneurin, (1897-1960), statesman
- Bevin, Ernest, (1881-1951), statesman and trade union leader
- Beynon, Thomas, (1745-1833), Archdeacon of Cardigan Patron of Welsh Literature
- Bickersteth, John Burgon, (1888-1979), Author
- Bickham, Spencer Henry, (fl 1900-1920), antiquary
- Bidgood, Ruth , (1922-2022), poet
- Biedermann, Henry Augustus, (1744-1816), Surveyor
- Bielski, Alison, (1925-2014), Poet
- Birch, Walter de Gray, (1842-1924), antiquary and editor
- Black, Peter, (b1960), Welsh Liberal Democrat politician Wirral, Cheshire;Swansea, Glamorgan
- Blackmore, Richard Doddridge, (1825-1900), author
- Blackwell, John, (1797-1840), Rector of Maenordeifi, Welsh poet as Alun
- Blackwood, William, (1836-1912), publisher
- Bodwrda, William, (1593-? 1670), Vicar of Aberdaron
- Bonham-Carter, Lady Helen Violet , (1887-1969) Baroness Asquith of Yarnbury, Liberal politician
- Bonner, Richard, (1787-1867), Wesleyan Methodist Minister
- Borrow, George Henry, (1803-1881), writer and traveller
- Bosanquet, Robert Carr, (1871-1935), Archaeologist
- Bottomley, Gordon, (1874-1948), poet and dramatist
- Bourdillon, Francis William, (1852-1921), Poet and Critic
- Bowdler, Henrietta Maria, (1754-1830), religious writer
- Bowen, David, (1874-1955), Baptist Minister
- Bowen, Emrys George, (1900-1983), Geographer and Anthropologist
- Bowen, Euros, (1904-1988), Rector of Llangywair, Welsh poet
- Bowen, Evan Roderic, (1913-2001), Barrister and Politician
- Bowen, Hannah, (1729-1805), Methodist
- Bowen, Robin Huw, (fl 1989-1998), harpist and music publisher
- Bowen, Zonia M, (fl 1965-2007), first National Secretary of Merched y Wawr
- Bowles, William Lisle, (1762-1850), Canon of Salisbury, poet, antiquary
- Braby, Dorothea, (1909-1987), illustrator and graphic artist
- Brackenbury, Joseph, (1788-1864), Poet
- Bradney, Sir Joseph Alfred, (1859-1933), Knight, Colonel and historian
- Bramston, Eliza, (d 1870), daughter of Admiral Sir Eliab Harvey
- Bramston, Thomas William, (1796-1871), MP
- Breese, Charles Edward, (1867-1932), MP, solicitor and antiquary
- Breese, Edward, (1835-1881), solicitor and antiquary
- Brereton, Andrew Jones, (1827-1885), Welsh brewer and author as Andreas o Fon
- Brett, Reginald Baliol, (1852-1930) 2nd Viscount Esher, politician
- Bridges, Gertrude Myfanwy, (1908-1987), daughter of Reverend David Davies
- Bright, Allan Heywood, (1862-1941), Liberal politician
- Brigstocke, George Robert, (1874-1956), antiquary
- Briscoe, Thomas, (1811-1895), Chancellor of Bangor Cathedral Biblical Scholar
- Broadfoot, Archibald, (1843-1926), Colonel
- Brooke, Henry, (1903-1984), Baron Brooke of Cumnor, Conservative politician
- Brooke, Stopford Augustus, (1832-1915), writer and preacher
- Brookes, Beata, (c1930-2015), Conservative MEP Abergele, Denbighshire;Bangor, Caernarfonshire;Brussels, Belgium;Rhuddlan, Flintshire
- Brougham, Henry Peter, (1778-1868), 1st Baron Brougham and Vaux, statesman, Lord Chancellor
- Brown, Sir George, (1790-1865), Knight, General
- Brown, George Alfred, (1914-1985), Baron George-Brown, politician
- Brown, Stanley Morse, (fl 1936), Principal of the School of Arts and Crafts, Carmarthen
- Browne, Sir Samuel James, (1824-1901), Knight General
- Bruce, Henry Austin, (1815-1895), 1st Baron Aberdare, statesman
- Brunner, Sir John Tomlinson, (1842-1919), 1st Baronet Industrialist and MP
- Brydges, Sir Harford Jones, (1764-1847), kinght, diplomat and author
- Buckland, William, (1784-1856), Dean of Westminster, geologist
- Bullock, Sir Christopher Llewellyn, (1891-1972), Knight, civil servant
- Bullock-Davies, Constance, (1900-1989), classical and linguistic scholar
- Bulwer-Lytton, Edward George Earle Lytton, (1803-1873), 1st Baron Lytton, statesman and novelist
- Bulwer-Lytton, Edward Robert, (1831-1891), 1st Earl of Lytton, Viceroy of India
- Bunsen, Christian Karl Josias von, (1791-1860), Baron von Bunsen, German diplomat and scholar
- Burgess, Thomas, (1756-1837), Bishop of Salisbury
- Burke, Sir Henry Farnham, (1859-1930), Knight, herald and genealogist
- Burne-Jones, Sir Edward Coley, (1833-1898), 1st Baronet, painter
- Burns, Cecil Delisle, (1879-1942), Lecturer and Writer
- Burton, Philip Henry, (1904-1995), teacher
- Burton, Richard, (1925-1984), stage and film actor
- Butler, Lady Eleanor, (c 1739-1829), One of the Ladies of Llangollen
- Butler, Richard Austen, (1902-1982), Baron Butler of Saffron Walden, politician
- Byres, James, (1734-1817), architect and virtuoso antiquary
- Cadbury, Henry Tylor, (1882-1952), businessman
- Callaghan, Leonard James, (1912-2005), Baron Callaghan of Cardiff, statesman
- Calvert, Frederick, (1806-1891), MP Barrister
- Campagnac, Ernest Trafford, (1873-1952), Professor of Education
- Campbell, Frederick Archibald Vaughan, (1847-1911), 3rd Earl Cawdor
- Campbell, Ian, (b 1936), peace activist and political campaigner
- Campbell, James Duncan, (1833-1907), Commissioner of Chinese Maritime Customs
- Campbell, John Frederick Vaughan, (1817-1898), 2nd Earl Cawdor
- Campbell, Thalia D, (b 1937), peace activist
- Campbell-Bannerman, Sir Henry, (1836-1908), statesman
- Canning, Joseph Herbert, (fl 1893-1930), local historian Monmouthshire
- Carey, William, (1769-1834), Bishop of St Asaph
- Carey-Evans, Lady Olwen, (1892-1990), daughter of David Lloyd George
- Carnac, John, (1716-1800), Brigadier General Politician
- Carter, Gertrude Maud, (1893-1974), dramatist and novelist
- Cartwright, James Joel, (1842-1903), Archivist and Antiquary
- Case, Robert Hope, (1857-1944), Professor of English Literature
- Casson, Sir Hugh Maxwell, (1910-1999), Knight, architect
- Catchpool, Egerton St John Pettifor, (1890-1971), Public Servant
- Cecil, Brownlow, (1795-1867), 2nd Marquess of Exeter
- Cecil-Williams, Sir John Lias Cecil, (1892-1964), Knight Solicitor and Historian
- Cennick, John, (1718-1755), Methodist and Moravian Minister
- Chaloner, Jacob, (1585-1631), heraldic painter and genealogist
- Chamberlain, Brenda, (1912-1971), Artist and Writer
- Chapman, Sir Edward Francis, (1840-1926), Knight General
- Chappell, Edgar Leyshon, (1879-1949), social reformer
- Charles, David, (1762-1834), Calvinistic Methodist Minister, hymn writer
- Charles, David, (1803-1880), Calvinistic Methodist Minister, hymn writer
- Charles, David, (1812-1878), Calvinistic Methodist Principal of Trevecka College
- Charles, Thomas, (1755-1814), Calvinistic Methodist Minister Educationist
- Charles, Thomas, (1811-1873), Surgeon
- Charoux, Siegfried Joseph, (1896-1967), sculptor
- Cholmondeley, Francis, (1636-1713), MP
- Chotzen, Theodor Max, (1901-1945), Celtic Scholar
- Chudleigh, Elizabeth, (c 1720-1788), called herself "Duchess of Kingston"
- Churchill, Sir Winston Leonard Spencer, (1874-1965), Knight, prime minister and historian
- Churchill, Winston Spencer, (1940-2010), Conservative MP
- Clark, George, (1777-1848), Chaplain of the Royal Military Asylum
- Clark, George Thomas, (1809-1898), engineer, antiquary and archaeologist
- Clark, Samuel, (1626-1701), Dissenting Clergyman Biblical Scholar
- Clarke, Gillian, (b 1937), Poet
- Clarke, John Joseph, (1879-1969), lecturer in law of housing and planning
- Clarkson, Thomas, (1760-1846), philanthropist
- Clayton, Sir Robert, (1629-1707), Knight, MP, scrivener, Lord Mayor of London
- Cleary, John Martin, (1917-1997), schoolmaster and historian
- Clement, James, (1862-1943), Poet and Dramatist Called Alarch Ogwy
- Clement, John Handel, (b 1920), Civil Servant
- Clinton, Henry Fynes, (1781-1852), MP, historian
- Clive, Edward, (1754-1839), 1st Earl of Powis, Governor of Madras
- Clive, Henrietta Antonia, (1758-1830), Countess of Powis
- Clive, Robert, (1725-1774), 1st Baron Clive, Governor of Bengal
- Cobbett, William, (1763-1835), MP, author, journalist and publisher
- Cobden, Richard, (1804-1865), statesman and businessman
- Coburn, Alvin Langdon, (1882-1966), American photographer
- Cocks, Edward Charles, (1786-1812), Lieutenant Colonel MP for Reigate
- Coghill, Kendal Josiah William, (1832-1919), Colonel
- Colby, Laurence Robert Vaughan, (1880-1914), Major Grenadier Guards
- Cole, Sir Christopher, (1770-1837), Knight, Captain RN
- Coleman, Donald Richard, (1925-1991), Labour MP
- Coleridge, Sir John Duke, (1820-1894), 1st Baron Coleridge, Lord Chief Justice
- Colley, Robert, (fl 2000-2007), lepidopterist Llanrhystud, Cardiganshire
- Condry, William Martin, (1918-1998), naturalist and writer
- Conington, John, (1825-1869), classical scholar
- Conway, William Martin, (1856-1937), Baron Conway of Allington, art critic
- Cooke, Bryan, (1756-1821), MP
- Coombe-Tennant, Winifred, (1874-1956), JP, suffragist and political campaigner
- Cooper, Anthony Lionel Ashley, (1813-1836), son of 6th Earl of Shaftesbury
- Cooper, William, (1910-2002), novelist
- Copleston, Edward, (1776-1849), Bishop of Llandaff Provost of Oriel College Oxford
- Copleston, John Henry, (1841-1918), Rector of Offwell Offwell, Devon
- Corbett, John, (1817-1901), MP
- Cormack, Sir Patrick Thomas, (b 1939), Knight Politician
- Cornewall, Sir George, (1774-1835), 3rd Baronet
- Cornewall, Sir George Henry, (1833-1908), 5th Baronet Rector of Moccas Herefordshire
- Cornwallis-West, William Cornwallis, (1835-1917), MP for West Denbigh
- Cotes, John, (1799-1874), MP
- Cotes, Thomas, (d 1767), Vice Admiral
- Courthope, William, (1808-1866), Somerset herald
- Coutts, Thomas, (1735-1822), banker
- Cox, David, (1783-1859), Landscape Painter
- Cox, Idris, (1899-1989), Communist Party Activist in South Wales
- Crane, Eva, (1912-2007), researcher and author on beekeeping
- Crawford, Sir Frederick, (1906-1978), Knight Colonial Governor
- Crawshay, George, (1821-1896), public works contractor and Radical
- Crawshay, William, (1788-1867), ironmaster
- Crawshay-Williams, Leonard Eliot, (1879-1962), MP, writer
- Cressett, James, (d 1710), Diplomat
- Crichton-Stuart, John, (1793-1848), 2nd Marquess of Bute
- Cripps, Sir Richard Stafford, (1889-1952) Knight, politician and lawyer
- Croft, Herbert, (1603-1691), Bishop of Hereford
- Crowe, William, (1745-1829), poet and clergyman
- Crozier, William Percival, (1879-1944), journalist
- Cullen, William, (1710-1790), physician
- Cullum, Sir Thomas Gery, (1741-1831), 7th Baronet Herald and Botanist
- Cumberland, George, (fl 1785-1836), antiquary
- Curtis, Lionel George, (1872-1955), colonial historian
- Curtis, Tony, (b 1946), poet
- Cutting, Vivien, (fl 1930-1980), poet
- Dafis, Cynog Glyndwr, (b 1938), Plaid Cymru MP
- Dale, Sir Alfred William Winterslow, (1855-1921), Knight Principal of University of Liverpool
- Dalton, Sir Edward Hugh John Neale, (1887-1962), Baron Dalton, statesman
- Daniel, David Robert, (1859-1931), Local Politician and Civil Servant
- Daniel, Goronwy Hopkin, (1914-2003), Knight Civil Servant
- Darlington, Thomas, (1864-1908), educationalist
- David, Wayne, (b 1957), MEP
- Davies, Sir Alfred Thomas, (1861-1949), Knight Civil Servant
- Davies, Alun Talfan, (b 1913), Judge
- Davies, Aneirin Talfan, (1909-1980), Welsh critic, broadcaster and poet as Aneirin ap Talfan
- Davies, Benjamin, (1863-1957), Scientist
- Davies, Cassie, (1898-1988), chief inspector of primary schools in Wales
- Davies, Charles, (1849-1927), Baptist Minister
- Davies, Charles, (1901-1953), Lecturer in English UCNW Bangor
- Davies, Daniel, (1840-1916), of Ton Colliery Cashier and Author
- Davies, David, (1814-1891), Calvinistic Methodist Preacher
- Davies, David, (1818-1890), Industrialist and MP
- Davies, David, (1880-1944), 1st Baron Davies
- Davies, David Charles, (1826-1891), Calvinistic Methodist Minister Theologian
- Davies, David Charles, (1901-1953), English Scholar
- Davies, David John Denzil, (b 1938), Labour MP
- Davies, Edward, (1756-1831), Rector of Bishopston, author and antiquary
- Davies, Edward Clement, (1884-1962), Politician
- Davies, Edward Owen, (1864-1936), Calvinistic Methodist Minister Theologian
- Davies, Edward Tegla, (1880-1967), Writer
- Davies, Eiluned, (1913-1999), composer and accompanist
- Davies, Ellis Thomas, (1822-1895), Welsh independent minister and author
- Davies, Ellis William, (1871-1939), Liberal MP
- Davies, Elwyn, (1908-1986), Historical Geographer Topographer Civil Servant
- Davies, Elwyn, (1912-1994), Welsh poet and teacher
- Davies, Evan, (1842-1919), Calvinistic Methodist Minister, writer
- Davies, George Maitland Lloyd, (1880-1949), Christian pacifist
- Davies, Griffith, (1788-1855), actuary
- Davies, Gwilym, (1879-1955), Director of League of Nations Union
- Davies, Henry, (? 1696-1766), Independent Minister
- Davies, Sir Henry Walford, (1869-1941), Knight, composer, organist and broadcaster
- Davies, Howell, (c1716-1770), Methodist minister
- Davies, Hubert, (1893-1965), composer
- Davies, Hugh, (1739-1821), Botanist
- Davies, Hugh Tudwal, (1847-1915), Farmer and Poet as Tudwal
- Davies, Idris, (1905-1953), Poet
- Davies, Ithel, (1894-1989), Barrister and Political Activist
- Davies, Ivan Thomas, (fl 1869-1929), Congregational Minister
- Davies, James Conway, (1891-1971), historian and palaeographer
- Davies, John, (?1570-1644), lexicographer
- Davies, John, (1772-1855), Methodist missionary
- Davies, John, (1803-1854), Welsh Independent Minister, author
- Davies, John, (1804-1884), Welsh Independent Minister, translator and commentator as Sion Gymro
- Davies, John, (1843-1917), Calvinistic Methodist minister and antiquary
- Davies, John, (fl 1960-1994), historian
- Davies, John Daniel, (1874-1948), editor of Y Rhedegydd
- Davies, John Evan, (1850-1929), Calvinistic Methodist minister and poet
- Davies, John Glyn, (1870-1953), poet, Professor in Welsh
- Davies, John Humphreys, (1871-1926), bibliographer and educationist
- Davies, John Ossian, (1851-1916), Congregational minister and author
- Davies, John Paternus Gildas, (fl 1840-1874), Roman Catholic priest
- Davies, Jonathan, (1857-1933), slate trader
- Davies, Jonathan Ceredig, (1859-1932), Traveller and Author
- Davies, Joseph, (d 1931), Deacon at Libanus Baptist Church Treherbert
- Davies, Sir Joseph, (1866-1954), Knight MP
- Davies, Joseph Edward, (b 1876), American Lawyer and Diplomat
- Davies, Margaret, (c 1700-1785), Antiquary Transcriber of Welsh MSS
- Davies, Margaret Frances, (1914-1982), geographer and historian
- Davies, Mary, (1855-1930), Soprano and President of the Welsh Folk Song Society
- Davies, Morgan, (1854-1920), physician
- Davies, Morris, (1796-1876), Author Hymnologist and Musician
- Davies, Olwen, (1924-2011), opera singer and political activist Italy;Aberystwyth, Cardiganshire;Greenham, Berkshire
- Davies, Owen, (1840-1929), Welsh Baptist Minister, biographer
- Davies, Pennar, (1911-1996), Poet, novelist and academic
- Davies, Pete , (fl1983-1994), photographer
- Davies, Rachel Mary, (1911-1996), member of Plaid Cymru
- Davies, Ray, (b1930), councillor and political activist Cardiff, Glamorgan;Llanbradach, Glamorgan;Caerphilly, Glamorgan;Bedwas, Monmouthshire
- Davies, Sir Rees, (1938-2005), Professor of medieval history Llandderfel, Merionethshire;Bala, Merionethshire;London;Swansea, Glamorgan;Aberystwyth, Cardiganshire;Oxford, Oxfordshire
- Davies, Rhys, (1903-1978), Welsh writer
- Davies, Richard, (fl 1816-1873), Welsh Baptist Minister as Yr Hen Belican
- Davies, Richard, (1818-1896), businessman, ship owner and MP
- Davies, Richard, (1830-1904), critic and poet as Tafolog
- Davies, Richard Humphrey, (1872-1970), Private Secretary to WE Gladstone
- Davies, Ronald, (b 1946), Politician
- Davies, Susan J. , (fl1950-2021), archivist and educator
- Davies, Thomas, (1820-1873), Independent minister Llandilo, Carmarthenshire
- Davies, Thomas George, (1900-1977), Principal of Presbyterian College Carmarthen
- Davies, Thomas Huws, (1882-1940), Secretary to Commissioners of Church Temporalities in Wales
- Davies, Walter, (1761-1849), Welsh clergyman, antiquary and poet as Gwallter Mechain
- Davies, William, (1756-1823), classical scholar and Welsh historian
- Davies, William, (1805-1859), Independent Minister and Schoolmaster
- Davies, William, (1820-1875), Wesleyan Minister, author
- Davies, Sir William, (1821-1895), Knight MP for Pembrokeshire
- Davies, Sir William, (1863-1935), journalist and editor
- Davies, William Evans, (1861-1945), Baptist minister
- Davies, William Henry, (1871-1940), poet and author
- Davies, Sir William Llewelyn, (1887-1952), Librarian
- Davies, William Watkin, (1895-1973), Barrister Historian Political Scientist
- Davies, Wynford, (1914-1987), Chief Education Officer for Pembrokeshire
- Davis, David, (1778-1846), Unitarian minister and schoolmaster
- Davis, Timothy, (1779-1860), Unitarian minister and schoolmaster
- Dawson, Bertrand Edward, (1864-1945), 1st Viscount Dawson, physician
- Delany, Mary, (1700-1788), artist and writer
- Denison, Edward, (1801-1854), Bishop of Salisbury
- Derfel, Robert Jones, (1824-1905), Welsh Radical Author and Poet
- Devereux, Robert, (1843-1930), 16th Viscount Hereford
- Digby, Sir Kenelm, (1603-1665), Knight Author Naval Commander and Diplomat
- Dilke, Sir Charles Wentworth, (1843-1911), Knight, 2nd Baronet, politician and author
- Dillwyn, Lewis Llewellyn, (1814-1892), MP
- Dillwyn, Lewis Weston, (1778-1855), naturalist, MP, pottery manufacturer
- Dillwyn, William, (1743-1824), Quaker Merchant Pennsylvania;Walthamstow, Essex
- Disraeli, Benjamin, (1804-1881), Earl of Beaconsfield, statesman
- Ditmas, Edith Margaret Robertson, (d 1986), Antiquary and Director of the Association of Libraries and Information Bureaux
- Diverres, Paul, (1880-1946), philologist
- Dixon, Sir Manley, (d 1837), Knight Admiral
- Dodderidge, Sir John, (1555-1628), judge historian
- Doddridge, Sir John, (1555-1628), Knight, judge, MP and historian
- Donnelly, Desmond Louis, (1920-1974), MP
- Doubleday, Herbert Arthur, (1867-1941), publisher, historian and genealogist
- Douglas-Pennant, Hon Violet Blanche, (d 1945), Commandant of WRAF
- Dovaston, John Freeman Milward, (1782-1854), Writer
- Doyle, Sir Francis Hastings Charles, (1810-1888), 2nd Baronet, poet
- Druce, George Claridge, (1854-1932), botanist
- Drummond, Robert Hay, (1711-1776), Archbishop of York
- Du Sautoy, Peter Francis, (b 1912), Publisher
- Duff, Sir Charles Patrick, (1889-1972), Knight Public Servant
- Duff, Sir James, (d 1815), 1st Baronet Consul at Cadiz
- Duff-Gordon, Caroline, (1789-1875), wife of Sir William Duff-Gordon
- Duncan, Jonathan, (1756-1811), Governor of Bombay
- Dundas, Henry, (1742-1811), 1st Viscount Melville, statesman
- Dunstan, Bernard, (1920-2017), Painter
- Dwnn, Lewys, (c 1550-c 1616), Welsh genealogist and poet
- Dyer, George, (1755-1841), Poet
- Dyer, John, (1699-1757), Welsh poet and painter
- Dyment, Clifford, (1914-1971), author
- Eady, Sir Crawfurd Wilfred Griffin, (1890-1962), Knight, civil servant
- Eames, Marion, (1921-2007), novelist Birkenhead, Cheshire;Dolgellau, Merionethshire
- Earwaker, John Parsons, (1847-1895), Cheshire Antiquary
- Ebsworth, Joseph, (1788-1868), dramatist and musician
- Eden, Robert Anthony, (1897-1977), 1st Earl of Avon, prime minister
- Edmund-Davies, Herbert Edmund, (1906-1992), Baron Edmund Davies of Aberpennar, judge
- Edwardes, Sir Herbert Benjamin, (1819-1868), Knight Indian Administrator
- Edwardes, Hugh, (1873-1938), 6th Baron Kensington Colonel
- Edwardes, William, (1835-1896), 4th Baron Kensington, politician
- Edwards, Alfred George, (1848-1937), Archbishop of Wales
- Edwards, D P Garbett-, (fl 1957-1987), Director of Finance of the Development Board for Rural Wales
- Edwards, Edward, (1865-1933), historian
- Edwards, Ellis, (1844-1915), Principal of Bala Theological College
- Edwards, Sir Francis, (1852-1927), 1st Baronet Radical MP
- Edwards, Gwilym Arthur, (1881-1963), Theologian
- Edwards, Henry William John, (b 1910), author
- Edwards, Huw Thomas, (1892-1970), Trade Unionist and Politician
- Edwards, Hywel Teifi, (b 1934), Critic and Literary Historian
- Edwards, Sir Ifan Ab Owen, (1895-1970), Knight Patriot and Founder of Urdd Gobaith Cymru
- Edwards, Jack, (1853-1942), bookseller and musician
- Edwards, John, (1813-1906), editor and poet as Meiriadog
- Edwards, John, (1905-1966), Recording Company Founder
- Edwards, Sir John Goronwy, (1891-1976), Knight, historian
- Edwards, John Hugh, (1869-1945), Editor, biographer and MP
- Edwards, John Kelt, (1875-1934), artist
- Edwards, Lewis, (1809-1887), Principal of Bala Theological College
- Edwards, Mary Garbett, (1893-1986), Public Servant and Liberal Party Agent
- Edwards, Sir Owen Morgan, (1858-1920), Knight, editor, writer and educationalist
- Edwards, Roger, (1811-1886), Calvinistic Methodist Minister, radical journalist
- Edwards, Roger Nicholas, (b 1934), Baron Crickhowell of Pont Esgob, politician
- Edwards, Thomas, (? 1869-1925), Musician and Antiquary
- Edwards, Thomas Charles, (1837-1900), Principal of University College of Wales
- Elfyn, Menna, (b1952), Welsh poet, playwright, columnist, and editor Llandysul, Ceredigion
- Elias, John, (1774-1841), Cavinistic Methodist Minister and preacher
- Eliot, Thomas Stearns, (1888-1965), poet
- Elis, Islwyn Ffowc, (1924-2004), novelist
- Elis, Meg, (d 1950), writer
- Ellis, Sir Clough, (1883-1978), Knight, architect
- Ellis, David, (1736-1795), Vicar of Criccieth, poet and translator
- Ellis, Griffith, (1844-1913), Calvinistic Methodist minister and biographer
- Ellis, Lionel Frederic, (1885-1970), Major and military historian
- Ellis, Mari, (fl 1949-1998), author Aberystwyth, Cardiganshire
- Ellis, Meg, (b1951), politician Aberystwyth, Cardiganshire
- Ellis, Richard, (1869-1928), librarian, bibliographer and antiquary
- Ellis, Richard Jenkin, (1888-1976), vice-chairman of Cardiganshire County Council
- Ellis, Robert, (1808-1881), Calvinistic Methodist minister and antiquary
- Ellis, Robert, (1812-1875), Baptist minister, antiquary and poet
- Ellis, Robert Thomas, (1924-2010), MP for Wrexham
- Ellis, Thomas Edward, (1859-1899), Liberal MP
- Ellis, Thomas Iorwerth, (1899-1970), educationist
- Ellis-Griffith, Sir Ellis Jones, (1860-1926), 1st Baronet, barrister and MP
- Elmsley, Peter, (1773-1825), classical scholar
- Elsynge, Henry, (1577-1635), clerk of the parliaments
- Elsynge, Henry, (1606-1656), Clerk of the House of Commons
- Elton, Oliver, (1861-1945), scholar and critic
- Eluned , Baroness , (b1967) Morgan, politician
- Elwyn, John, (1916-1997), Painter
- Elwyn-Jones, Frederick, (1909-1989), Baron Elwyn Jones, Lord Chancellor Llanelli, Carmarthenshire;Aberystwyth, Cardiganshire;Cambridge, Cambridgeshire;Germany;Merthyr Tydfil, Glamorgan;London
- Elwyn-Jones, Walter Idris, (1900-1971), Welsh chemist and international rugby union player Llanelli, Carmarthenshire;Llandaff, Glamorgan
- Emyr, John, (fl 1950-2011), Welsh author and poet
- Erskine, Ann, (d 1829), Leader of Countess of Huntingdons Connexion
- Eure, Ralph, (1558-1617), 3rd Baron Eure
- Evans, Albert Owen, (1864-1937), Archdeacon of Bangor and historian
- Evans, Alcwyn Caryni, (1828-1902), antiquary
- Evans, Arthur Wade Wade-, (1875-1964), rector and historian Wrabness, Essex
- Evans, Benjamin Ifor, (1899-1982), Baron Evans of Hungershall
- Evans, Beriah Gwynfe, (1848-1927), journalist and playwright
- Evans, Caradoc, (1878-1945), author and playwright
- Evans, Christmas, (1766-1838), Baptist minister and preacher
- Evans, Clifford, (1912-1985), actor and director
- Evans, Daniel Silvan, (1818-1903), Vicar of Llanwrin, lexicographer and poet
- Evans, David, (1860-1950), Unitarian minister and schoolmaster
- Evans, David, (1874-1948), music composer
- Evans, David, (1875-1951), industrial journalist
- Evans, David, (1878-1945), author
- Evans, David Cledlyn, (1858-1940), schoolmaster, geologist and antiquary
- Evans, David Emlyn, (1843-1913), Welsh music critic and composer
- Evans, Sir David Emrys, (1891-1966), Vice Chancellor of the University of Wales
- Evans, David Lewis, (1813-1902), Unitarian minister and tutor
- Evans, David Moule-, (1905-1988), composer and musicologist
- Evans, David Owen, (1876-1945), MP for Cardiganshire
- Evans, Ellis, (1786-1864), Baptist minister, author and historian
- Evans, Ellis Humphrey, (1887-1917), Welsh poet
- Evans, Emlyn, (1923-2014), publisher, managing director of Llyfrau’r Dryw, Llandybïe and Gwasg Gee, Dinbych
- Evans, Evan, (1731-1789), Welsh poet and antiquary
- Evans, Evan Price, (1880-1959), founder member of British Ecological Society
- Evans, Sir Evan Vincent, (1851-1934), Knight, journalist
- Evans, George Ewart, (1909-1988), author, lecturer and broadcaster
- Evans, George Eyre, (1857-1939), Unitarian minister and antiquary
- Evans, Griffith, (1835-1935), veterinary surgeon and microscopist
- Evans, Griffith Ivor, (1889-1966), Welsh Nationalist
- Evans, Henry Tobit, (1844-1908), schoolmaster, journalist and politician
- Evans, Horatio James, (1859-1932), Brigadier General
- Evans, Hugh, (1767-? 1841), Welsh poet
- Evans, Hugh, (1866-1934), Wesleyan minister and poet
- Evans, Ifor Leslie, (1897-1952), principal, University College of Wales, Aberystwyth
- Evans, Ioan Lyonel, (b 1927), Labour MP
- Evans, John, (d 1822), vicar of Newport, Monmouthshire
- Evans, John Dafydd, (1900-c 1984), artist and book illustrator
- Evans, John Gwenogvryn, (1852-1930), historian and palaeographer
- Evans, John Thomas, (1869-1941), Rector of Stow-on-the-Wold, antiquary Stow-on-the-Wold, Gloucestershire
- Evans, Leslie Wynne, (1911-1985), educationalist
- Evans, Marguerite Florence Laura, (1888-1964), romantic novelist
- Evans, Meredydd, (1919-2015), musicologist, performer, language campaigner
- Evans, Olwen Caradoc, (1918-1998), author and map dealer
- Evans, Owen Ellis, (1900-2000), minister of the church and Biblical scholar
- Evans, Phoebe Joyce, (b 1890), missionary
- Evans, Rhys, (fl 1980-2019), broadcaster and producer
- Evans, Richard Gwynfor, (1912-2005), Plaid Cymru MP and historian
- Evans, Samuel James, (1870-1938), educationalist and author
- Evans, Sir Samuel Thomas, (1859-1918), Knight, politician and judge
- Evans, Simon, (1824-1885), Congregational minister
- Evans, Stephen, (1818-1905), educationist and promoter of Welsh culture
- Evans, Thomas, (1764-1833), Unitarian Minister, political reformer and poet
- Evans, Thomas Christopher, (1846-1918), Cadrawd antiquary
- Evans, Thomas E, (fl 1866), Congregational minister
- Evans, Thomas Henry, (fl 1891-1914), mining engineer
- Evans, Thomas John, (1863-1932), Welsh journalist and antiquary
- Evans, William, (1795-1891), Calvinistic Methodist minister
- Evans, William, (1882-1968), Welsh Congregational minister, writer and poet
- Evans, William, (1883-1968), poet as Wil Ifan
- Ewing, Winifred Margaret, (b 1929), Scottish Nationalist MP and MEP
- Fairbank, Alfred John, (1895-1982), Calligrapher
- Falkener, Edward, (1814-1896), architect and archaeologist
- Farrer, Thomas Henry, (1819-1899), 1st Baron Farrer, civil servant
- Fazakerley, John Nicholas, (1787-1852), Politician
- Fenton, Richard, (1746-1821), Poet and Antiquary
- Field, Guy Cromwell, (1887-1955), Professor of Philosophy
- Finch, Peter, (b1947), poet and author
- Fisher, Herbert Albert Laurens, (1865-1940), historian and statesman
- Fisher, John, (1862-1930), Chancellor of St Asaph Antiquary
- Fitzgibbon, Constantine, (1919-1983), Author
- Fitzroy, Lord Charles, (1791-1865), Politician
- Fitzwilliams, Gerard Hall Lloyd, (b 1882), physician
- Fleetwood, William, (1656-1723), Bishop of Ely
- Fleure, Herbert John, (1877-1969), zoologist and geographer
- Flower, Benjamin, (1755-1829), Political Writer
- Floyd, William, (c 1810-1898), Antiquary
- Flynn, Paul Philip, (b 1935), Labour MP
- Foot, Michael, (1913-2010), politician and author
- Foster, Sir Idris Llewelyn, (1911-1984), Knight, Celtic scholar
- Foulkes, Isaac, (1836-1904), Newspaper Proprietor and Publisher
- Fowke, Joseph, (1716-1800), Indian Administrator and Diamond Merchant
- Fox, Sir Cyril Frederick, (1882-1967), Knight, archaeologist
- Fox, Henry Elliott, (1841-1926), Secretary of Church Missionary Society
- Francis, Alfred Edwin, (1909-1985), theatre and opera administrator
- Francis, George Grant, (1814-1882), antiquary Swansea, Glamorgan
- Franks, Chris , (b1951), politician
- Fraser, Dorothy May, (1902-1980), Travel Writer
- Fraser, John, (1882-1945), Celtic scholar
- Fraser, Lovat, (1871-1926), Editor of the Times of India Writer and Traveller
- Freeman-Mitford, John, (1748-1830), 1st Baron Redesdale, Lord Chancellor
- Fremantle, Sir Arthur James Lyon, (1835-1901), Knight General Colonial Governor
- Fremantle, Sir William Henry, (1766-1850), Knight Politician
- Frost, John, (1784-1877), Chartist
- Froude, James Anthony, (1818-1894), historian
- Fry, Sir Geoffrey Storrs, (1888-1960), 1st Baronet, Private Secretary to Stanley Baldwin
- Fryde, Edmund Boleslaw, (1923-1999), Professor of History
- Gabb, John Baker, (1827-1893), Privy Chamberlain to Leo XIII
- Gadbury, John, (1627-1704), Astrologer
- Gaitskell, Hugh Todd Naylor, (1906-1963), Statesman
- Gale, Sir Humfrey, (1890-1971), Knight Lieutenant General
- Gallie, Menna Patricia, (1920-1990), author
- Gambold, John, (1711-1771), Bishop of the Unitas Fratrum
- Garlick, Raymond, (b 1926), Author Critic and Welsh Nationalist
- Garnett, Edward, (1868-1937), writer
- Garnett, James Clerk Maxwell, (1880-1958), Secretary of League of Nations Union
- Garrick, David, (1717-1779), actor
- Gauden, John, (1605-1662), Bishop of Worcester
- Gee, Howel, (d 1903), Journalist
- Gee, Thomas, (1815-1898), Calvinistic Methodist Minister Journalist and Politician
- Geikie, Sir Archibald, (1835-1924), Knight, geologist
- George, Alfred John, (1879-1956), Welsh Baptist Minister
- George, David Lloyd, (1863-1945), 1st Earl Lloyd George of Dwyfor, statesman
- George, Henry, (d 1920), Music Composer
- George, Percy, (1896-1985), Economist
- George, William, (1865-1967), solicitor
- George, William, (fl 1895-1920), Composer
- George, William Richard Philip, (1912-2006), solicitor, writer and Archdruid of Wales
- Gerard, Charles, (c 1618-1694), 1st Earl of Macclesfield, Lieutenant General
- Gibson, Edmund, (1669-1748), Bishop of London, antiquary
- Gibson, John, (1790-1866), sculptor
- Gibson, Sir John, (1841-1915), Knight and journalist
- Gielgud, Sir Arthur John, (1904-2000), Knight, actor and theatre director
- Giles, William, (1872-1939), Art Historian
- Gillie, Francis Blaise, (1908-1981), Civil Servant and Town Planner
- Gladstone, William Ewart, (1809-1898), statesman
- Gladstone, William Henry, (1840-1891), MP and mountaineer
- Glover, Robert, (1544-1588), Somerset Herald
- Glynne, Sir John, (d 1777), 6th Baronet
- Glynne, Lady Mary, (1786-1854), noblewoman
- Glynne, Sir Stephen Richard, (1780-1815), 8th Baronet of Hawarden
- Glynne, Sir Stephen Richard, (1807-1874), 9th Baronet MP Antiquary
- Glynne-Jones, William, (1907-1977), Author
- Godolphin, Francis, (c 1707-1785), 2nd Baron Godolphin of Helston
- Godolphin, John, (1617-1687), Lawyer
- Goodhart-Rendel, Harry Stuart, (1887-1959), architect Hatchlands, Surrey
- Goodwin, Geraint, (1903-1941), Novelist
- Gordon, Alexander, (1841-1931), Unitarian minister and historian
- Gough, Sir Hugh Henry, (1833-1909), Knight General
- Gough, Richard, (1735-1809), antiquary
- Gower, John, (d ? 1914), Rector of Trefriw Caernarvonshire
- Gower, Sir Robert Patrick Malcolm, (1887-1964), Knight, civil servant and Conservative publicity officer
- Gowers, Sir Ernest Arthur, (1880-1966), Knight, Knight Public Servant
- Grace, Percy, (d 1859), Vice Admiral
- Graham, Sir Bellingham Reginald, (1789-1866), 7th baronet
- Graham, Sir James Robert George, (1792-1861), 2nd Baronet, statesman
- Grant, Sir Robert, (1779-1838), Knight MP Governor of Bombay
- Grant-Duff, Sir Mountstuart Elphinstone, (1829-1906), Knight statesman and author
- Graves, Alfred Perceval, (1846-1931), Author and Educationist
- Graves, Robert Ranke, (1895-1985), poet and author
- Green, Charles Alfred Howell, (1864-1944), Archbishop of Wales
- Green, Eileen, (d ? 1990), Local Historian
- Green, Francis, (1854-1942), Antiquary and Lawyer
- Greene, Graham, (1904-1991), novelist
- Greg, William Rathbone, (1809-1881), essayist
- Grenfell, David Rhys, (1881-1968), MP
- Grenfell, Joyce Irene, (1910-1979), actress and entertainer
- Grenville, Richard Plantagenet Temple-Nugent-Brydges-Chandos-, (1797-1861), 2nd Duke of Buckingham and Chandos
- Grenville, Thomas, (1755-1846), Statesman
- Grenville, William Wyndham, (1759-1834), Baron Grenville, statesman
- Gresham, Colin Alastair, (1913-1989), Archaeologist and Historian
- Greville, Charles Francis, (1749-1809), MP, dilettante
- Greville, Robert Fulke, (1751-1824), MP Courtier
- Grey, Charles, (1804-1870), General, Private Secretary to Prince Albert and Queen Victoria
- Grey, Henry George, (1802-1894), 3rd Earl Grey, statesman
- Grice, Frederick, (1910-1983), Author
- Griffith, David Robert, (1915-1990), Lecturer in Biblical Studies and Hymnist
- Griffith, Edward, (1832-1918), antiquary
- Griffith, Ellis, (fl 1529-1550), chronicler
- Griffith, Huw Wynne, (1915-1993), Calvinistic Methodist clergyman
- Griffith, John, (1713-1776), Quaker of Radnorshire and Pennysylvania
- Griffith, John, (1756-1830), Receiver General for North Wales and Chester
- Griffith, John Edwards, (1843-1933), Antiquary and Naturalist
- Griffith, John Owen, (1828-1881), Welsh critic and poet
- Griffith, John Thomas, (1845-1917), Baptist Minister and Historian
- Griffith, Kenneth, (b 1921), Actor Writer and Documentary Film Maker
- Griffith, Llewelyn Wyn, (1890-1977), Public Servant Novelist Poet and Translator
- Griffith, Moses, (1893-1973), Agricultural Pioneer
- Griffith, Richard, (1861-1947), Poet and Local Historian
- Griffiths, Ann , (d2020), harpist
- Griffiths, Ann, (1780-1805), Welsh Methodist hymn-writer
- Griffiths, David Rees, (1882-1953), writer
- Griffiths, Evan, (1795-1873), Welsh Independent minister, printer and author
- Griffiths, Gwyn, (fl 1975-1988), Welsh Liberal Party Leader
- Griffiths, Henry, (1811-1891), philosopher
- Griffiths, James, (1782-1858), Independent minister
- Griffiths, James, (1890-1975), politician
- Griffiths, John, (1837-1918), artist and principal of Bombay College of Arts
- Griffiths, John Gwyn, (1911-2004), poet, critic and Classical scholar
- Griffiths, Peter Hughes, (1871-1937), Calvinistic Methodist minister
- Griffiths, William, (1788-1861), Calvinistic Methodist minister
- Griffith-Wynne, Charles Wynne, (1780-1865), MP
- Grigg, Sir Percy James, (1890-1964), Knight Civil Servant
- Grimond, Joseph, (1913-1993), Baron Grimond, politician
- Grist, Ian, (1938-2002), MP
- Gronovius, Lorenz Theodor, (c 1730-1778), Ichthyologist
- Grosart, Alexander Balloch, (1827-1899), author and editor
- Grosvenor, Eleanor, (1770-1846), Marchioness of Westminster
- Grosvenor, Thomas, (1764-1851), Field Marshal
- Grote, George, (1794-1871), MP and historian
- Grote, Harriet, (1792-1878), biographer
- Groves, Sir Charles, (1915-1992), Conductor
- Gruffydd, Elis, (fl 1490-1552), copyist, translator and chronicler
- Gruffydd, Owen, (c1643-1730), weaver, poet and antiquary
- Gruffydd, Robert Geraint, (1928-2015), Welsh scholar and critic Bangor, Caernarfonshire;Tal-y-bont, Merionethshire;Oxford, Oxfordshire;Aberystwyth, Cardiganshire
- Gruffydd, William John, (1881-1954), Celtic and literary scholar and MP
- Grufydd, William John, (1881-1954), Poet, Scholar and Critic
- Guest, Lady Charlotte Elizabeth, (1812-1895), translator, diarist and collector
- Gulson, Alan James, (1813-1886), novelist
- Gurney, Frederick George, (1878-1947), antiquary
- Guy, David Thomas, (1905-1976), Secretary of the South Wales District of the Wea
- Gwalchmai, Humphrey, (1788-1847), Calvinistic Methodist Minister
- Gwynn, Harri, (1913-1985), Poet
- Gwynne, Marmaduke, (? 1694-1769), Friend of Charles and John Wesley
- Haggard, Sir Henry Rider, (1856-1925), Knight, novelist
- Hague, Rene, (1905-1981), Printer and Scholar
- Hahn, Kurt Matthias Robert Martin, (1886-1974), educationalist
- Hain, Peter, (b 1950), politician
- Haines, William, (1853-1922), Monmouthshire Historian
- Haldane, Richard Burdon, (1856-1928), 1st Viscount Haldane, Lord Chancellor
- Hall, Augusta, (1802-1896), promoter of Welsh Culture
- Hall, Benjamin, (d 1825), Chancellor of the Diocese of Llandaff
- Hall, Benjamin, (1802-1867), 1st Baron Llanover, politician
- Halliwell-Phillipps, James Orchard, (1820-1889), antiquary and literary scholar
- Hamer, Edward, (c 1830-c 1901), Antiquary
- Hamer, Florrie, (1903-1994), Sunday School teacher
- Hamilton, Sir William, (1730-1803) Knight, diplomat and archaeologist
- Hankey, Maurice Pascal Alers, (1877-1963), 1st Baron Hankey of the Chart, civil servant
- Hanley, James, (1901-1985), novelist and playwright
- Hanmer, Sir John, (d 1701), 3rd Baronet MP Major General
- Hanmer, John, (1809-1881), Baron Hanmer, poet and MP
- Hanmer, Sir Thomas, (1612-1678), 2nd Baronet MP
- Hanmer, Sir Thomas, (1677-1746), 4th Baronet Speaker of House of Commons
- Hanmer, Sir Thomas, (1747-1828), 2nd Baronet
- Harcourt, Sir William George Granville Venables Vernon, (1827-1904), Knight, statesman
- Harding, John Taylor, (1835-1928), Rural Dean of Monmouth
- Harding, Kenneth, (1903-1992), Composer and Viola Player
- Harkness, Edward S, (1874-1940), Banker
- Harries, David, (1933-2003), Welsh musician and composer
- Harries, Edgar Phillips, (1888-1963), Trade Unionist
- Harries, John, (1787-1839), Astrologer
- Harris, Howell, (1714-1773), Welsh Methodist reformer, evangelist, agriculturalist
- Harris, Joseph, (1704-1764), assay master of the Mint
- Harris, Thomas, (1705-1782), clothing contractor to Army
- Hart, Sir Robert, (1835-1911), 1st Baronet, Inspector General of the Chinese Imperial Maritime Customs
- Hartland, Edwin Sidney, (1848-1927), Folklorist
- Harvey, Sir Eliab, (1758-1830), Knight Admiral MP for Maldon Essex
- Hastings, Selina, (1707-1791), founder of Countess of Huntingdon's Connexion
- Hatton, Ann Julia, (1764-1838), writer and actress Worcester, Worcestershire;Swansea, Glamorgan
- Hawker, Joseph, (d 1846), Herald
- Haycraft, Anna, (1932-2005), novelist
- Haydock, Richard, (c 1552-1605), Roman Catholic theologian, author
- Hay-Drummond, Louisa, (d1885), Countess of Kinnoull
- Hayek, Friedrich August von, (1899-1992), economist
- Hayward, Abraham, (1801-1884), essayist
- Head, Sir Edmund Walker, (1805-1868), 8th Baronet, colonial governor
- Heath, Sir Edward Richard George, (1916-2005), Knight, Knight statesman
- Hebblethwaite, Percival, (1849-1922), registrar of Liverpool University
- Hefin, John, (1941-2012), Welsh television director and head of drama at BBC Wales Aberystwyth, Cardiganshire;Cardiff, Glamorgan
- Hellings, Peter, (1921-1994), poet
- Hemp, Wilfrid James, (1882-1962), antiquary and archaeologist
- Henley, Peter, (fl 1967-2017), photographer Aberystwyth, Cardiganshire
- Herbert, Sir Arthur James, (1820-1897), Knight, General
- Herbert, Edmund Arthur, (1866-1946), Brigadier General
- Herbert, Edward, (1583-1648), 1st Baron Herbert of Cherbury, philosopher and historian
- Herbert, Edward, (c 1633-1678), 3rd Baron Herbert of Cherbury
- Herbert, Edward, (1785-1848), 2nd Earl of Powis
- Herbert, Edward James, (1818-1891), 3rd Earl of Powis
- Herbert, George Augustus, (1759-1827), 11th Earl of Pembroke, General
- Herbert, Sir Henry, (1595-1674), Knight, Master of the Revels
- Herbert, Henry, (c1640-1691), 4th Baron Herbert of Cherbury
- Herbert, Henry, (d 1738), 2nd Baron Herbert
- Herbert, Henry Arthur, (1703-1772), 1st Earl of Powis
- Herbert, Henry Howard Molyneux, (1831-1890), 4th Earl of Carnarvon, statesman
- Herbert, Ivor John Caradoc, (1851-1933), Baron Treowen, Major General
- Herbert, Richard, (? 1600-1655), 2nd Baron Herbert of Cherbury
- Herbert, Sir Thomas, (1606-1682), 1st Baronet, traveller and author
- Herbert, Thomas, (1656-1733), 8th Earl of Pembroke, Lord High Admiral
- Heron, Patrick, (1920-1999), Painter
- Herring, William, (d 1774), Dean of St Asaph
- Hetherington, Hector James Wright, (1888-1965), Knight, university administrator
- Hibbert, George, (1757-1837), West India Merchant MP
- Hicks, Henry, (1837-1899), surgeon and geologist
- Hill, Sir Edward Stock, (1834-1902), Knight MP
- Hill, Sir Richard, (1733-1808), 2nd Baronet MP
- Hill, Rowland, (1772-1842), 1st Viscount Hill, General
- Hills, Sir John, (1834-1902), Knight Major General
- Hills-Johnes, Elizabeth , (c1835-1927), former president of Carmarthen Quins
- Hills-Johnes, Sir James, (1833-1919), Knight Lieutenant General
- Hill-Trevor, Arthur , (1763-1837) 2nd Viscount Dungannon
- Hill-Trevor, Charlotte , (1767-1828), Viscountess Dungannon
- Hinds, John, (1862-1928), MP
- Hiraethog, Griffith, (d c 1566), Welsh genealogist
- Hoare, Sir Richard Colt, (1758-1838), 2nd Baronet, historian and archaeologist
- Hobley, Charles William, (1867-1947), Colonial Administrator and Geologist
- Hobley, William, (1858-1933), Calvinistic Methodist Minister Historian
- Hoddinott, Alun, (1929-2008), composer
- Hodge, Sir Julian Stephen Alfred, (b 1904), merchant banker
- Hodges, Cyril, (1915-1974), industrialist and poet
- Hodgkinson, Robert Banks, (1722-1792), antiquary
- Hogg, Quentin McGarel, (1907-2001), Baron Hailsham of St Marylebone, Lord Chancellor
- Holbrooke, Josef Charles, (1878-1958), musician
- Holland, Samuel, (1803-1892), MP Pioneer of Welsh Slate Industry
- Holroyd, Sir Michael de Courcy Fraser, (b 1935), Knight, biographer
- Hooker, Jeremy, (b 1941), Poet and Critic
- Hooson, Hugh Emlyn, (b 1925), Lord Hooson Politician
- Hooson, Tom Ellis, (1933-1985), Conservative MP
- Hopkins, Glyn, (1909-1991), Author and Local Historian
- Horsley, Samuel, (1733-1806), Bishop of St Asaph mathematician
- Houghton, Alanson Bigelow, (1863-1941), US Diplomat and Businessman
- How, William Walsham, (1823-1897), Bishop of Wakefield
- Howard-Jones, Ray, (1903-1996), artist
- Howell, David, (1797-1873), Calvinistic Methodist minister
- Howell, David, (1831-1903), Dean of St Davids
- Howells, Howell, (1750-1842), Methodist minister
- Howells, Morgan, (1794-1852), Calvinistic Methodist minister
- Howells, Rees, (1879-1950), Baptist Minister
- Howells, Thomas John, (1913-1990), Welsh film-maker Cardiff, Glamorgan;Penarth, Glamorgan
- Huckell, John, (1729-1771), Poet
- Hudson, James Hindle, (1881-1962), MP
- Hudson, Sir Robert Arundell, (1864-1927), Knight, political organiser
- Hudson-Williams, Thomas, (1873-1961), classical scholar
- Hughes, Beti, (1926-1981), Welsh author
- Hughes, Cledwyn, (1916-2001), Baron Cledwyn of Penrhos, politician
- Hughes, David Edward, (1831-1900), Electrical Engineer
- Hughes, Glyn Tegai, (1923-2017), politician, writer and critic
- Hughes, Goronwy Alun, (fl 1990), Borough Librarian at Flint
- Hughes, Henry Harold, (1864-1940), archaeologist
- Hughes, Hugh, (1693-1776), Welsh-language poet Llandyfrydog, Anglesey;Llanfihangel Ysgeifiog, Anglesey
- Hughes, Hugh, (1790-1863), Artist and Author
- Hughes, Hugh Michael, (1858-1933), Congregational Minister
- Hughes, Hugh Robert, (1827-1911), Lord Lieutenant of Flintshire Antiquary and Genealogist
- Hughes, James, (1779-1844), Calvinistic Methodist Minister, hymn writer as Iago Trichrug
- Hughes, John, (1775-1854), Calvinistic Methodist Minister Biographer Hymn Writer
- Hughes, John, (1776-1843), Wesleyan Minister and Antiquary
- Hughes, John, (1796-1860), Calvinistic Methodist Minister and Author
- Hughes, John, (1827-1893), Calvinistic Methodist Minister
- Hughes, John, (1842-1902), Wesleyan Minister,editor,author as Glanystwyth
- Hughes, John Ceiriog, (1832-1887), Railway Superintendent and poet as Ceiriog
- Hughes, John Cledwyn, (1920-1978), Novelist
- Hughes, John Henry, (1814-1893), Congregational minister and poet
- Hughes, John Richard, (1828-1893), Calvinistic Methodist Minister
- Hughes, John Roberts, (1886-1962), antiquary and historian of the Quakers in Wales
- Hughes, Joshua, (1807-1889), Bishop of St Asaph
- Hughes, Lot, (1787-1873), Wesleyan Methodist Minister and Historian
- Hughes, Loti Rees, (1908-1969), Labour Party Activist
- Hughes, Richard Arthur Warren, (1900-1976), Author
- Hughes, Robert Owen, (1858-1919), Welsh poet as Elfyn
- Hughes, Thomas, (1803-1898), Calvinistic Methodist Minister, author as Glan Pherath
- Hughes, W Douglas, (1889-1968), Llanelly Divisional Labour Party Agent
- Hughes, William Bulkeley, (1797-1882), MP
- Hughes-Jones, Llifon, (1918-1996), musical composer and conductor
- Hume, John, (1706-1782), Bishop of Salisbury
- Humphreys, Charles, (1854-1924), Naval Officer
- Humphreys, Edward Morgan, (1882-1955), journalist and novelist
- Humphreys, Emyr Owen, (b 1919), Novelist Poet and Dramatist
- Humphreys, Humphrey, (1648-1712), Bishop of Hereford
- Humphreys, Richard, (1790-1863), Calvinistic Methodist Minister
- Humphreys-Owen, Arthur Charles, (1836-1905), MP
- Hunter, Joseph, (1783-1861), antiquary
- Huntley, Richard Webster, (1793-1857), Rural Dean of Hawkesbury and Bitton
- Hurd, Richard, (1720-1808), Bishop of Worcester
- Hutt, Jill, (fl 1970-1998), Welsh trades union official
- Hutton, Catherine, (1756-1846), author
- Hutton, James, (1715-1795), Founder of the Moravian Church in England
- Hutton, John, (? 1740-1806), Vicar of Burton, author
- Hutton, Thomas, (1757-1845), son of William Hutton
- Huxley, Thomas Henry, (1825-1895), Scientist
- Hyde, Douglas, (1860-1949), President of Ireland
- Ingram, James, (d 1788), Methodist exhorter, Welsh Independent Minister
- Irby, George Florance, (1860-1941), 6th Baron Boston
- Irwin, Margaret Hardinge, (d 1940), Trade unionist
- Isaac, Norah, (1914-2003), Author
- Iwan, Dafydd, (b 1943), Folk Singer and Poet
- Jacob, Henry Thomas, (1864-1957), Congregational Minister
- Jaffrenou, Francis, (1879-1956), Breton Poet
- James, David, (fl 1920), Baptist Minister
- James, David Emrys, (1881-1952), poet as Dewi Emrys
- James, Evan, (1809-1878), Wool Merchant Weaver and Poet as Ieuan Ap Iago
- James, Horatio, (1789-1850), Captain RN
- James, John, (1779-1864), Unitarian Minister and Schoolmaster
- James, John Lloyd, (1835-1919), Congregational minister and historian
- James, Thomas, (d 1751), Methodist Preacher
- James, Thomas, (1834-1915), Calvinistic Methodist Minister and Schoolmaster
- James, Thomas Lewis, (fl 1910), solicitor and antiquary
- James, Thomas Terry, (1933-2016), Welsh composer and orchestral conductor Kidwelly, Carmarthenshire;Oxford, Oxfordshire
- James, William, (1848-1907), Unitarian Minister, schoolmaster
- Janes, Alfred, (1911-1999), painter
- Jarman, Alfred Owen Hughes, (1911-1998), Professor of Welsh
- Jeffreys, George, (1648-1689), 1st Baron Jeffreys of Wem, judge
- Jenkin, Thomas James, (1885-1965), Botanist
- Jenkins, Dafydd, (b 1911), Legal Historian
- Jenkins, David, (1848-1915), Musician and Composer
- Jenkins, David, (b 1912), librarian and archivist
- Jenkins, David Erwyd, (d 1937), Presbyterian minister
- Jenkins, Evan, (1882-1960), Welsh Poet
- Jenkins, Herbert, (1721-1772), Independent minister
- Jenkins, James Travis, (fl 1912-1943), Public Servant Author of Works On Fisheries and Whaling
- Jenkins, John, (1770-1829), Welsh clergyman and antiquary called Ifor Ceri
- Jenkins, John, (1779-1853), Baptist Minister Theologian and Publisher
- Jenkins, John, (1872-1936), Theologian and poet as Gwili
- Jenkins, John Barnard, (fl 1969), Welsh Nationalist
- Jenkins, John Geraint, (b 1929), museum curator and historian
- Jenkins, Joseph, (1743-1819), Particular Baptist Minister
- Jenkins, Joseph, (1861-1929), Calvinistic Methodist Minister
- Jenkins, Sir Lawrence Hugh, (1857-1928), Knight Judge of High Court of Calcutta
- Jenkins, Sir Leoline, (1623-1685), Knight, civilian and diplomat
- Jenkins, Nigel, (1949-2014), Anglo-Welsh poet, editor, journalist, psychogeographer, broadcaster, writer and lecturer Gorseinon, Glamorgan;Gower, Glamorgan;Swansea, Glamorgan
- Jenkins, Robert Thomas, (1881-1969), Historian and Author
- Jenkins, William, (fl 1855-1864), Baptist Minister
- Jenkinson, Charles Cecil Cope, (1784-1851), 3rd Earl of Liverpool
- Jevons, Herbert Stanley, (1875-1955), economist
- Jewsbury, Geraldine Endsor, (1812-1880), novelist
- Job, John Thomas, (1867-1938), Calvinistic Methodist Minister, hymn writer, poet
- Jobbins, Alan , (fl1998-2006), political and historical researcher
- John, (1166-1216) King of England
- John, Augustus Edwin, (1878-1961), painter and etcher
- John, Brynmor Thomas, (1934-1988), Labour MP
- John, Dorelia, (1881-1969), painter
- John, Edward Thomas, (1857-1931), MP
- John, Griffith, (1831-1912), Missionary in China
- John, Gwendolen Mary, (1876-1939), painter Haverfordwest, Pembrokeshire;Paris, France;London;Dieppe, France
- John, Sir William Goscombe, (1860-1952), sculptor
- Johnes, John, (1800-1876), judge
- Johnes, Thomas, (c 1721-1780), MP
- Johnes, Thomas, (1748-1816), of Hafod, antiquary, translator and MP
- Johnson, Richard, (fl 1772-1803), East India Co Official
- Jones, Sir Albert Cynan Evans-, (1895-1970), Welsh poet
- Jones, Benjamin George, (1914-1989), Liberal politician
- Jones, Brynmor P, (fl 1980-1998), Welsh clergyman and historian
- Jones, Sir Cadwaladr Bryner, (1872-1954), Knight Agriculturist
- Jones, Caradog, (1919-1973), Labour Candidate for Montgomeryshire Constituency
- Jones, Daniel, (1908-1985), Labour MP for Burnley
- Jones, Daniel Jenkyn, (1912-1993), Composer and Conductor
- Jones, David, (?1708-1785), publisher and poet of Trefiw
- Jones, David, (1735-1810), curate of Llan-gan and Methodist preacher
- Jones, David, (1736-1810), clergyman Llangan, Glamorgan
- Jones, David, (1805-1868), Calvinistic Methodist minister and hymn writer
- Jones, David, (1834-1890), antiquary
- Jones, David, (1848-1922), Welsh poet
- Jones, David Glanaman, (1867-1951), minister and writer
- Jones, David Ivon, (1883-1924), Unitarian and traveller
- Jones, David James, (1899-1968), Welsh author and poet
- Jones, David Lloyd, (1843-1905), Calvinistic Methodist minister, astronomer and archaeologist
- Jones, David Michael, (1895-1974), painter, poet and essayist
- Jones, David Phillip, (1850-1883), Baptist minister
- Jones, David Watkin, (1832-1905), historian and Welsh poet
- Jones, Dic, (1934-2009), Welsh poet and Archdruid, National Eisteddfod Cardiganshire
- Jones, Donald H, (fl 1923-1939), Local Historian
- Jones, Sir Edgar Rees, (1878-1962), Knight MP
- Jones, Edmund, (1702-1793), Independent Minister, antiquary as Yr Hen Broffwyd
- Jones, Edward, (1752-1824), harpist, antiquary and music collector as Bardd y Brenin
- Jones, Edward, (1780-1820), Methodist Minister
- Jones, Edward, (c 1866-1924), Welsh Baptist Minister as Iorwerth Ddu
- Jones, Elias Henry, (1883-1942), Author
- Jones, Elizabeth Mary, (1878-1953), Novelist
- Jones, Eluned Bebb, (1925-2010), radio script writer Bangor, Caernarfonshire
- Jones, Ernest Charles, (1819-1869), Chartist and poet
- Jones, Evan, (1820-1852), journalist and poet
- Jones, Evan David, (1903-1987), librarian and archivist
- Jones, Evan Pan, (1834-1922), Independent Minister
- Jones, Francis, (1908-1993), Wales Herald Extraordinary Historian and Archivist
- Jones, Frank Price, (1920-1975), historian and author
- Jones, Gareth Vaughan, (1905-1935), Journalist
- Jones, Glyn, (1905-1995), poet, short story writer and novelist
- Jones, Griffith, (1683-1761), Rector of Llanddowror, education reformer
- Jones, Griffith Hugh, (fl 1883-1896), Composer as Gutyn Arfon
- Jones, Gwilym Hadyn, (b1947), politician
- Jones, Gwilym Peredur, (1892-1975), economic historian
- Jones, Gwilym Richard, (1903-1993), poet and journalist
- Jones, Gwyn, (b 1907), Scholar Novelist and Short Story Writer
- Jones, Gwynoro Glyndwr, (b1942), Welsh politician
- Jones, Sir Henry, (1852-1922), Knight, philosopher
- Jones, Sir Henry Haydn, (1863-1950), Knight MP
- Jones, Hugh, (1789-1858), Welsh printer, author and poet as Erfyl
- Jones, Hugh, (1800-1872), Welsh Congregational Minister, poet as Cromwell o Went
- Jones, Hugh, (1830-1911), Calvinistic Methodist Minister
- Jones, Hugh William, (1802-1873), Baptist Minister and Editor
- Jones, Humphrey, (1867-1947), Poet as Bryfdir
- Jones, Hywel Ceri, (fl1971-1999), public servant
- Jones, Idwal, (1895-1937), Playwright and Humorist
- Jones, Ieuan Wyn, (b 1949), MP
- Jones, Isaac R, (1877-1944), Poet as Rhuddonian
- Jones, Jack, (1884-1970), author
- Jones, Jack Raymond, (b 1922), artist and writer
- Jones, James Rhys Kilsby, (1813-1889), Congregationalist Minister
- Jones, John, (c1585-1658), Calligrapher Antiquary
- Jones, John, (? 1597-1660), Regicide
- Jones, John, (1650-1727), Dean of Bangor
- Jones, John, (fl 1758-1785), curate of Waldron, Sussex, vicar of Darrington, Yorkshire Darrington, Yorkshire;Waldron, Sussex
- Jones, John, (1777-1842), MP
- Jones, John, (1792-1852), Canon of St Davids Literaray Scholar and Poet as Tegid
- Jones, John, (1796-1857), Calvinistic Methodist Minister Musician
- Jones, John, (1810-1869), architect and poet as Talhaiarn
- Jones, John, (1820-1898), Local Historian and Folklorist Ivon
- Jones, John, (1836-1921), Blacksmith Antiquary and Collector of MSS as Myrddin Fard
- Jones, John Edryd, (1876-1965), Minister at the Independent Chapel Rhosllanerchrugog
- Jones, John Gwilym, (1904-1988), writer and critic
- Jones, John Harry, (1881-1973), Economist
- Jones, John Henry, (1909-1985), Director of Education for Cardiganshire
- Jones, John Idris, (b 1938), Poet
- Jones, John Islan, (1874-1968), Unitarian Minister at Bolton
- Jones, John Morgan, (1838-1921), Calvinistic Methodist minister
- Jones, John Richard, (1765-1822), Sandemanian Baptist Minister
- Jones, John Richard, (1881-1955), Antiquary and Local Politician
- Jones, John Robert, (1911-1970), Philosopher
- Jones, John Tudor, (1904-1985), politician, editor and poet
- Jones, Jonah, (1919-2004), sculptor
- Jones, Jonathan, (fl 1850-1884), Antiquary
- Jones, Joseph David, (1827-1870), composer
- Jones, Josiah Thomas, (1799-1873), Independent minister, publisher, biographer
- Jones, Kitty Idwal, (1898-1984), folklorist, missionary and educationalist
- Jones, Lewis, (d 1882), Baptist Minister
- Jones, Lewis, (1835-1915), journalist, printer and poet as Rhuddenfab
- Jones, Lewis, (1836-1904), Pioneer of Welsh Colony in Patagonia and Writer
- Jones, Margaret, (? 1850-1931), Poet called Myfanwy Meirion
- Jones, Martin, (1897-1979), botanist
- Jones, Merfyn, (fl 1964-1989), Welsh Liberal Party Activist
- Jones, Michael, (1787-1853), Principal of the Independent College Bala
- Jones, Mordecai, (1813-1880), Colliery Proprietor
- Jones, Morgan, (1885-1939), MP
- Jones, Morgan Hugh, (1873-1930), Calvinistic Methodist historian
- Jones, Morris Charles, (1819-1893), Antiquary
- Jones, Owen, (d 1795), Rector of Newborough
- Jones, Owen, (1833-1899), Calvinistic Methodist Minister Bibliophile Antiquary
- Jones, Owen, (1838-1866), Schoolmaster and Antiquary as Manoethy
- Jones, Owen Thomas, (1878-1967), geologist
- Jones, Parry William John, (1891-1963), opera singer
- Jones, Rees Jenkin, (1835-1924), Unitarian Minister Schoolmaster Historian Hymn Writer
- Jones, Rhydderch Thomas, (1935-1987), writer Cardiff, Glamorgan;Dolgellau, Merionethshire
- Jones, Rhys Bevan, (1869-1933), Baptist Minister, conservative evangelical and author
- Jones, Rhys Samuel, (b 1917), French Scholar
- Jones, Richard, (? 1771-1833), Calvinistic Methodist Minister, hymn writer
- Jones, Richard Idwal Mervyn, (1895-1937), dramatist and poet known as Idwal Jones
- Jones, Richard Robert, (1780-1843), Welsh linguist as Dic Aberdaron
- Jones, Robert, (1806-1896), Baptist Minister and Author
- Jones, Robert Ambrose, (1851-1906), Methodist clergyman and author
- Jones, Robert Gerallt, (1934-1999), poet, novelist and critic Nefyn, Caernarfonshire
- Jones, Robert Maynard, (b 1929), writer, critic and scholar
- Jones, Robert Tudur, (1921-1998), Church Historian
- Jones, Samuel Maurice, (1853-1932), Artist
- Jones, Shirley, (b1934), printmaker and publisher Glamorgan;Powys
- Jones, Stephen Barry, (b 1938), Baron Jones of Deeside, MP for Flint East
- Jones, Ted Breeze, (1929-1997), Welsh naturalist and broadcaster
- Jones, Theophilus, (1759-1812), deputy registrar of the Archdeaconry of Brecon, historian of Brecknockshire
- Jones, Thomas, (c1532-1609), Welsh-language poet and genealogist Tregaron, Cardiganshire;Gogerddan, Cardiganshire
- Jones, Thomas, (1743-1803), landscape painter
- Jones, Thomas, (1752-1845), rector, author Creaton, Northamptonshire
- Jones, Thomas, (1870-1955), economist
- Jones, Thomas, (1871-1938), schoolmaster and antiquary
- Jones, Sir Thomas Artemus, (1871-1943), Knight, judge
- Jones, Sir Thomas George, (1881-1948), Knight, newspaper proprietor and politician
- Jones, Thomas Gwynn, (1871-1949), Celtic scholar
- Jones, Thomas Henry, (1921-1965), poet
- Jones, Thomas Llechid, (1867-1946), clergyman and antiquary
- Jones, Thomas Mervyn, (1910-1989), public servant
- Jones, Thomas Owen, (1875-1941), Welsh author
- Jones, Thomas Tudno, (1844-1895), Curate of Llanwrst, journalist, poet
- Jones, W Bradwen, (1892-1976), composer
- Jones, Walter Idris, (1900-1971), scientist and sportsman
- Jones, Sir William, (1746-1794), Knight, orientalist and jurist
- Jones, William, (1852-1914), Poet as Gwilym Wyn
- Jones, William, (1857-1915), Liberal MP
- Jones, William Garmon, (1884-1937), historian librarian
- Jones, William Jenkyn, (1852-1925), Calvinistic Methodist Missionary in Brittany
- Jones, William Owen, (1861-1937), Minister of the Free Church of the Welsh Liverpool
- Jones, William Rhys, (1868-1937), Baptist Minister and Folklorist
- Jones, William Richard, (1840-1898), Calvinistic Methodist Minister, author as Goleufryn
- Jones, William Ronald Rees, (1915-1987), editor and poet
- Jones, William Samuel, (b 1920), Writer
- Jones, William Tudor, (1865-1946), Unitarian Minister Philosopher
- Jones-Davies, Henry, (1870-1955), Carmarthen County Councillor
- Joseph, Joseph, (d 1890), Antiquary
- Joseph, Keith Sinjohn, (1918-1994), Baron Joseph, politician
- Jowett, Benjamin, (1817-1893), biblical and classical scholar Master of Balliol College Camberwell, Surrey;Oxford, Oxfordshire
- Judd, Charles Wilfred, (1896-1974), Joint President United Nations Association
- Kay-Shuttleworth, Ughtred James, (1844-1939), 1st Baron Shuttleworth, politician
- Kemeys, Sir Charles, (1651-1702), 3rd Baronet MP
- Kemeys, Sir Charles, (1688-1735), 4th Baronet Jacobite MP
- Kemeys-Tynte, Sir Charles, (1710-1785), 5th Baronet MP
- Kemeys-Tynte, Charles Kemeys, (1779-1860), MP
- Kenyon, Sir Frederic George, (1863-1952), Knight, Knight Director and Principal Librarian British Museum Papyrologist
- Kenyon, George, (1776-1855), 2nd Baron Kenyon, politician
- Kenyon, John Robert, (1807-1880), Professor of Law
- Kenyon, Thomas, (1780-1851), clerk of the King's Bench
- Kerr, Philip Henry, (1882-1940), 11th Marquess of Lothian, statesman
- Kershaw, Sir (John) Anthony, (1915-2008), MP
- Kilvert, Robert Francis, (1840-1879), Anglican Clergyman Diarist
- King, Edward, (1795-1837), Viscount Kingsborough, antiquary
- King, Hester, (1784-1873), Baroness King
- Kinney, Phyllis, (b 1922), musicologist, language campaigner, performer
- Kinnock, Neil Gordon, (b 1942), Baron Kinnock of Bedwellty, MP and Labour Party leader Tredegar, Monmouthshire
- Knight, Henry Hey, (1795-1857), Rector of Neath Antiquary
- Knight, Samuel Johnes, (1756-1852), Rector of Welwyn
- Kyffin, Morris, (c 1555-1598), soldier, translator and poet
- Kynaston, Sir John Roger, (1797-1866), 3rd baronet
- Lamb, Sir Matthew, (1705-1768), 1st Baronet MP
- Lamb, Peniston, (1745-1828), 1st Viscount Melbourne
- Landor, Walter Savage, (1775-1864), author
- Lang, Arthur Moffat, (1832-1916), Colonel Royal Engineers
- Larkin, Philip Arthur, (1922-1985), poet
- Laski, Harold Joseph, (1893-1950), political scientist
- Laski, Nathan, (1863-1941), Indian Merchant and Public Servant
- Laski, Neville Jonas, (1890-1969), Recorder of Liverpool
- Laws, Edward, (1837-1913), Historian
- Le Hardy, William Henry Clement, (1889-1961), Colonel Record Agent Archivist
- Lee, Matthew Henry, (1832-1890), Vicar of Hanmer Antiquary
- Lees, Ted, (fl 1945-1985), Captain, Intelligence Officer and Interpreter Bridgend, Glamorgan
- Leeson, Spencer, (1892-1956), Bishop of Peterborough
- Legh, Thomas, (1793-1857), MP
- Legonna, John, (1918-1978), Welsh Nationalist
- Leighton, Frederic, (1830-1896), Baron Leighton of Stretton, painter
- Letts, Thomas, (1803-1873), Publisher of Diaries
- Leveson-Gower, Granville George, (1815-1891), 2nd Earl Granville, statesman
- Levi, Thomas, (1825-1916), Calvinistic Methodist Minister and Author
- Lewes, Thomas, (1742-1795), Envoy to Saxony
- Lewis, Alun, (1915-1944), poet and writer
- Lewis, Alun Tudor, (1905-1986), Short Story Writer
- Lewis, David, (1616-1679), Jesuit priest, pretended Bishop of Llandaff
- Lewis, David, (1828-1908), Composer
- Lewis, David John, (1879-1947), Congregational Minister of Bethesda Chapel Tumble
- Lewis, David Morgan, (1851-1937), Congregational minister and physicist
- Lewis, Edward Aneurin, (1880-1942), Historian
- Lewis, Eiluned, (d 1979), Author
- Lewis, Erasmus, (1670-1754), MP Diplomat
- Lewis, Evan, (fl 1837-1882), Welsh Congregational Minister, hymn writer
- Lewis, Sir George Cornewall, (1806-1863), 2nd Baronet Statesman and Author
- Lewis, Gwyneth, (b1959), poet
- Lewis, Henry, (1889-1968), Celtic scholar
- Lewis, Henry Watkin, (1839-1897), engineer Merthyr Tydfil, Glamorgan;Harrogate, Yorkshire
- Lewis, Sir Herbert David William, (1872-1931), Knight MP
- Lewis, Howell Elvet, (1860-1953), minister, poet and hymn writer
- Lewis, Hywel David, (1910-1992), Philosopher
- Lewis, John, (1836-1892), Poet and Musician as Eos Glyn Wyre
- Lewis, John Gomer, (? 1844-1914), Welsh Baptist Minister
- Lewis, Sir John Herbert, (1858-1933), Knight MP
- Lewis, Lewis, (? 1838-1906), Welsh Poet
- Lewis, Lewis William, (1831-1901), poet and novelist as Llew Llwyfo
- Lewis, Rose Mabel, (1853-1928), author
- Lewis, Saunders, (1893-1985), dramatist, poet, literary historian and critic
- Lewis, Thomas, (1821-1897), MP
- Lewis, Sir Thomas Frankland, (1780-1855), 1st Baronet, politician
- Lewis, Timothy, (1877-1958), Welsh Literary Scholar
- Lewis, Timothy Richards, (1841-1886), surgeon and pathologist
- Leys, Norman, (1875-1944), writer on colonial affairs
- Lhuyd, Edward, (1660-1709), Naturalist and Antiquary
- Lhuyd, Humphrey, (1527-1568), Physician and Antiquary
- Lindsay , Alexander Dunlop, (1879-1952), 1st Baron Lindsay of Birker, philosopher
- Little, Helen Kaye, (b1944), radiologist Battle, Sussex
- Livsey, Richard Arthur Lloyd, (1935-2010), Baron Livsey of Talgarth, politician
- Llewellyn, Sir David Richard, (1879-1940), 1st Baronet
- Llewellyn-Jones, Frederick, (1866-1941), Coroner for Flintshire Liberal MP
- Lloyd, Charles, (1766-1829), Unitarian Minister, schoolmaster
- Lloyd, Charles Arthur Albany, (1785-1851), Rector of Whittington
- Lloyd, Charles Spencer, (1789-1876), JP, high sheriff
- Lloyd, Daniel Lewis, (1843-1899), Bishop of Bangor
- Lloyd, David, (1724-1779), Arian minister, poet and linguist
- Lloyd, David, (1912-1969), singer
- Lloyd, David John de, (1883-1948), musician
- Lloyd, David Myrddin, (1909-1981), librarian
- Lloyd, David Tecwyn, (1914-1992), writer and literary critic
- Lloyd, Edward, (fl 1660-1681), of Llanforda
- Lloyd, Evan, (1734-1776), Vicar of Llanfair Dyffryn, poet and satirist
- Lloyd, Lady Frances, (c1831-1886), daughter of 11th Earl of Kinnoull
- Lloyd, Sir Francis, (1853-1926), Knight, Lieutenant General
- Lloyd, George Evan, (d1900), Lt Colonel, 1st bn, West Riding Regiment
- Lloyd George, Frances Louise, (1888-1972), secretary
- Lloyd George, Gwilym, (1894-1967), 1st Viscount Tenby
- Lloyd George, Dame Margaret, (1864-1941), magistrate and fundraiser
- Lloyd George, Lady Megan, (1902-1966), politician
- Lloyd, George Newton Kynaston, (1786-1848), Rector of Selattyn
- Lloyd George, Richard, (1889-1968), 2nd Earl Lloyd George of Dwyfor
- Lloyd, Howel William, (1816-1893), antiquary
- Lloyd, Isaac Samuel, (fl1914-1946), writer
- Lloyd, John, (1750-1815), natural philosopher
- Lloyd, John, (1833-1915), political reformer and antiquary
- Lloyd, John Arthur, (1787-1864), JP
- Lloyd, John Davies Knatchbull, (1900-1978), antiquary and public servant
- Lloyd, Sir John Edward, (1861-1947), Knight, historian
- Lloyd, John Robert, (d 1803), Anglican clergyman
- Lloyd, Louisa, (1785-1866), daughter of Admiral Sir Eliab Harvey
- Lloyd, Morgan, (1820-1893), barrister and politician
- Lloyd, Rhys Gerran, (fl 1939-1974), Baron Lloyd of Kilgerran, politician
- Lloyd, Sir Richard, (1634-1686), Knight, judge, MP
- Lloyd, Richard Dafydd Vivian Llewellyn, (1906-1983), novelist
- Lloyd, Richard Thomas, (1820-1898), JP, high sheriff
- Lloyd, Rossendale, (1863-1940), Rector of Selattyn
- Lloyd, Simon, (1756-1836), Methodist minister and agriculturist
- Lloyd, William, (1627-1717), Bishop of Worcester
- Lloyd, William, (1779-1843), JP, High Sheriff
- Lloyd-Howells, David, (1942-2015), poet and composer Abergavenny, Monmouthshire
- Lloyd-Johnes, Herbert Johnes, (1900-1983), public servant
- Lloyd-Jones, David Martin, (1899-1981), preacher, physician and author
- Lloyd-Jones, John, (1885-1956), poet and scholar
- Llwyd, Alan, (b 1948), Poet, Editor and Critic
- Llwyd, Angharad, (1780-1866), Antiquary
- Llwyd, Elfyn, (b1951), Welsh barrister and MP Betws-y-coed, Caernarfonshire
- Llwyd, Morgan, (1619-1659), Welsh dissenter, poet and mystic
- Llwyd, Richard, (1752-1835), Antiquary and Poet Bard of Snowdon
- Llywelyn ap Llangewydd, (? 1540-1616), Welsh copyist and poet
- Lockley, Ronald Mathias, (1903-2000), author and naturalist
- Lodge, Sir Oliver Joseph, (1851-1940), Knight, physicist
- Logan, Sir William Edmond, (1798-1875), Knight Geologist
- Loveden, Edward Loveden, (c 1751-1822), MP
- Loveden, Pryse, (1815-1855), MP
- Lovett, Trevor, (1899-1980), headmaster Holyhead, Anglesey
- Lumley, Richard, (1810-1884), Calvinistic Methodist Minister
- Luxmoore, Charles Scott, (1792-1854), Dean of St Asaph
- Lynn-Thomas, Sir John, (1861-1939), Knight Surgeon
- Lyttelton, George, (1709-1773), 1st Baron Lyttelton, statesman
- Lyttelton, George William, (1817-1876), 4th Baron Lyttelton
- Lyttelton, Mary, (1813-1857), Baroness Lyttelton
- Mac Cana, Proinsias, (1926-2004), Celtic scholar Belfast, County Antrim;Dublin, County Dublin;Aberystwyth, Cardiganshire
- Macaulay, Thomas Babington, (1800-1859), Baron Macaulay, statesman and historian
- MacColl, Norman, (1843-1904), Editor of the Athenaeum
- MacDonald, Gordon, (1888-1966), Baron Macdonald of Gwaenysgor, Labour politician
- MacDonald, James Ramsay, (1866-1937), statesman
- Macdonald, Tom, (1900-1980), Novelist
- Machen, Arthur Llewelyn Jones, (1863-1947), novelist and essayist
- Mackail, John William, (1859-1945), classical scholar, literary critic and poet
- Mackworth, Sir Humphry, (1657-1727), Knight, politician and capitalist
- Macmillan, Hugh Pattison, (1873-1952), 1st Baron Macmillan, Lord of Appeal
- Macmillan, Maurice Harold, (1894-1986), 1st Earl of Stockton, Prime Minister
- Macqueen-Pope, Walter James, (1888-1960), Theatre Historian
- Madariaga, Salvador de, (1886-1978), diplomat and author
- Maddox, Isaac, (1697-1759), Bishop of Worcester
- Madocks, William Alexander, (1773-1828), MP, industrialist and philanthropist
- Mainwaring, William Henry, (1885-1971), Labour MP
- Mair, Alexander, (1870-1927), Professor of Philosophy
- Malcolm, Sir John, (1769-1833), Knight, Indian administrator and diplomat
- Mallon, James Joseph, (1875-1961), Warden of Toynbee Hall
- Mann, Sir John, (1863-1955), Knight, chartered accountant
- Mansbridge, Albert, (1876-1952), Educationist
- Mansell, Bussy, (d 1750), 4th Baron Mansell of Margam
- Mansell, Edward, (d 1585), Knight of Margam
- Mansell, Edward, (c 1636-1706), Baronet
- Mansell, Thomas, (c 1668-1723), 1st Baron Mansell of Margam
- Mansell, Thomas, (1719-1743), 2nd Baron Mansell of Margam
- Markham, Violet Rosa, (1872-1959), Liberal activist and public servant
- Marquand, Hilary Adair, (1901-1972), Statesman
- Martin, Alexander, (1857-1946), Principal of New College, Edinburgh
- Martin, Sir Theodore, (1816-1909), Knight, biographer
- Martineau, John Philip, (1823-1891), solicitor
- Maskelyne, Nevil, (1732-1811), astronomer
- Mathias, Roland Glyn, (1915-2007), Poet, editor and critic
- Mathias, William James, (1934-1993), Composer Conductor and Pianist
- Matthews, Edward, (1813-1892), Calvinistic Methodist minister and author
- Matthews, John, (1773-1848), surveyor
- Matthews, John, (1808-1870), Mayor of Aberystwyth
- Maurice, Peter, (1803-1878), Vicar of Yarnton Musicologist
- Maurice, Sir William, (1542-1622), Knight Politician
- Maurice, William, (d 1680), Antiquary
- Mavrice, William, (d 1680), Welsh antiquary
- Maxwell-Fyfe, David Patrick, (1900-1967), Earl of Kilmuir, statesman
- McAllister, Gilbert, (1906-1964), Politician Journalist and Town Planner
- McBean, Angus, (1904-1990), Welsh photographer South Wales;Acton, Middlesex;Covent Garden, Middlesex
- McGrath, Michael Joseph, (1882-1961), Bishop of Menevia
- Means, Joseph Calrow, (1801-1879), Baptist Minister Biographer Topographer
- Medici, Marie de, (1573-1642), Queen of France
- Meredith, Sir John, (1714-1780), Knight Lawyer
- Merivale, Charles, (1808-1893), Dean of Ely
- Metcalf, John, (b1946), composer Swansea, Glamorgan;Gower, Glamorgan;Cardiff, Glamorgan;Cheltenham, Gloucestershire;Banff, Alberta;Llanfair Clydogau, Cardiganshire
- Meyrick, Sir Samuel Rush, (1783-1848), Knight, antiquary
- Michael, Ian David Lewis, (b 1936), Professor of Spanish and Writer as David Serafin
- Miles, Bernard James, (1907-1991), Baron Miles, actor
- Miles, Gareth, (b 1938), Short Story Writer and Playwright
- Mills, John, (1812-1873), Calvinistic Methodist Minister Writer Musician as Ieuan Glan Alarch
- Mills, Robert Scourfield, (1863-1919), Adventurer and Author Called Arthur Owen Vaughan and Owen Rhoscomyl
- Millward, Edward Glynne, (1930-2020), Welsh nationalist politician
- Milnes, Richard Monckton, (1809-1885), 1st Baron Houghton, politician and poet
- Monckton, Ivan, (b1953), Trade Union activist in Wales Wolverhampton, Staffordshire;Wales
- Monckton, Walter Turner, (1891-1965), 1st Viscount Monckton of Brenchley
- Moon, Cedric J, (b1948), representative on various Welsh deaf-related councils Cardiff, Glamorgan
- Morgan, Alan Bertram, (1897-1924), 2nd Lieutenant, 29th Squadron Royal Flying Corps Pontypridd, Glamorgan;Reading, Berkshire;Caerphilly, Glamorgan;France
- Morgan, Sir Charles, (1760-1846), 2nd Baronet, soldier and politician
- Morgan, Charles Octavius Swinnerton, (1803-1888), MP and antiquary
- Morgan, Christopher John, (1944-2014), Welsh author Cardiff, Glamorgan;Swansea, Glamorgan;Seaford, Sussex;Hawkhurst, Kent;Neath, Glamorgan
- Morgan, Derec Llwyd, (b 1943), poet and critic
- Morgan, Evan, (1809-1853), Calvinistic Methodist minister and author
- Morgan, Gwenllian Elizabeth Fanny, (1852-1939), Welsh antiquary and local politician
- Morgan, Hilda, (1926-1994), lecturer and music librarian
- Morgan, Horace, (fl 1940-1950), writer
- Morgan, John, (1840-1924), Archdeacon of Bangor
- Morgan, John, (1886-1957), Archbishop of Wales
- Morgan, John Rhys, (1822-1900), Welsh Baptist Minister, author and poet
- Morgan, Kenneth Owen, (b 1934), historian
- Morgan, Lois, (1900-1937), Lady Tredegar, actress
- Morgan, Mihangel, (b 1955), author
- Morgan, Prys Thomas Jon, (b 1937), writer and historian
- Morgan, Rhys, (1892-1961), conductor and singer
- Morgan, Richard Humphreys, (1850-1899), Calvinistic Methodist minister and controversialist
- Morgan, Robert, (b1665), Canon of Hereford and antiquary
- Morgan, Robert, (b1921), writer and artist
- Morgan, Thomas, (1720-1799), Welsh Independent minister and author
- Morgan, Thomas John, (1907-1987), Welsh scholar and essayist
- Morgan, Walter Thomas, (1919-1990), librarian
- Morison, John Lyle, (1875-1952), Historian
- Morley, Sir John, (1838-1923), 1st Viscount Morley of Blackburn, statesman
- Morris , John Meirion , (1936-2020), Sculptor
- Morris, David, (1930-2007), MEP, peace activist
- Morris, Edward Rowley, (1828-1893), Antiquary
- Morris, Haf, (1933-2012), cerdd dant setter, teacher and adjudicator
- Morris, Jan, (b 1926), author
- Morris, John, (b 1931), Lord Morris of Aberavon, MP
- Morris, John William, (1896-1979), Baron Morris of Borth Y Gest, judge
- Morris, Lewis, (1701-1765), Welsh scholar and poet
- Morris, Sir Lewis, (1833-1907), Knight, Welsh poet and educationist
- Morris, Sir Rhys Hopkin, (1888-1956), Knight MP
- Morris, Richard Roberts, (1852-1935), Calvinistic Methodist Minister and Poet
- Morris, Robert Prys, (c 1831-1890), Local Historian
- Morris, Roger, (fl 1590), Antiquary Transcriber of Welsh MSS
- Morris, Silas, (1862-1923), Principal Baptist College Bangor
- Morris, Tegwen Clee, (1901-1965), Welsh Nationalist
- Morris, Thomas Evans, (1863-1951), barrister and antiquary
- Morris, William, (1705-1763), Botanist and Antiquary
- Morris, William, (1783-1861), Calvinistic Methodist Minister
- Morris-Jones, John, (1864-1929), Scholar Poet and Critic
- Morrison, Herbert Stanley, (1888-1965), 1st Baron Morrison of Lambeth, statesman
- Morys, Huw, (1622-1709), Welsh Poet as Eos Ceiriog
- Moses, Evan, (1726-1805), tailor, member of the Trevecka family
- Moss, Gwenfron, (b 1898), missionary
- Mountford, George, (fl 1900-1931), local historian
- Muir, John Ramsay Bryce, (1872-1941), historian politician
- Murphy, Paul, (b1948) Baron Murphy of Torfaen, MP
- Murray, George Gilbert Aime, (1866-1957), classicist and internationalist
- Murray, Lindley, (1745-1826), Grammarian
- Murrell, Frank Edric Joseph, (1874-1931), MP Businessman
- Myddelton-Biddulph, Robert, (1805-1872), MP
- Mytton, Thomas, (1597-1656), Parliamentarian
- Mytton-Davies, O Cynric, (d 1995), Journalist and Writer
- Nairne, Sir Charles Edward, (1836-1899), Knight General
- Napier, Macvey, (1776-1847), editor of Edinburgh Review
- Nayler, Sir George, (? 1764-1831), Knight, herald
- Nemo, Louis P, (1900-1978), Breton writer
- Newell, Richard, (1785-1852), Calvinistic Methodist Preacher and Temperance Worker
- Newman, John Henry, (1801-1890), Cardinal, priest, poet and theologian
- Newton, Sir Charles Thomas, (1816-1894), Knight Archaeologist and Diplomat
- Nicholas, Thomas, (1816-1879), Welsh Congregational Minister, tutor and historian
- Nicholas, William Rhys, (1914-1996), Poet, Hymn Writer and Editor
- Nicholls, Sir George, (1781-1865), Knight, poor law reformer
- Nicholson, Isabella , (1837), diarist
- Niedergang, Ena N, (b1945), educationalist and author Pontardawe, Glamorgan
- Noel-Baker, Philip John, (1889-1982), Baron Noel-Baker, politician
- Norris, Leslie, (b 1921), Writer
- North, Frederick, (1766-1827), 5th Earl of Guilford
- Norwood, Gilbert, (1880-1954), Classical Scholar
- Novello, Ivor, (1893-1951), actor and composer
- O Donohoe, Tomás, (fl1916), member of the Irish Citizen Army
- O'Casey, Sean, (1880-1964), playwright and writer
- O'Grady, Standish Hayes, (1832-1915), Irish Historian
- Oldfield-Davies, Alun, (1905-1988), Head of the BBC in Wales
- Oldham, Joseph Houldsworth, (1874-1969), Missionary
- Oldys, William, (1696-1761), Herald and Antiquary
- Olivier, Laurence Kerr, (1907-1989), Baron Olivier, actor
- Ollivant, Alfred, (1798-1882), Bishop of Llandaff
- Ommanney, Sir Francis Molyneux, (1774-1840), Knight MP Navy Agent
- Onions, Oliver, (1873-1961), novelist
- Ormond, John, (1923-1990), poet and film maker
- Ormsby-Gore, John Ralph, (1816-1876), 1st Baron Harlech, politician
- Ormsby-Gore, Owen, (d 1852), Captain
- Ormsby-Gore, William, (1779-1860), MP
- Ormsby-Gore, William George Arthur, (1885-1964), 4th Baron Harlech, politician
- Ormsby-Gore, William Richard, (1819-1904), 2nd Baron Harlech, politician
- Orwig, Dafydd, (1918-1996), Welsh nationalist
- Ottley, Adam, (d 1723), Bishop of St David's
- Ottley, Sir Francis, (1601-1649), Knight, Royalist
- Owain, Owain Llewelyn, (1878-1956), Journalist and Author
- Owen, Sir Arthur David Kemp, (1904-1970), Knight, economist
- Owen, David, (1784-1841), Farmer and Poet as Dewi Wyn O Eifion
- Owen, Dyddgu, (1906-1992), writer of children's books
- Owen, Edward, (1728-1807), Rector of Warrington Classical Scholar
- Owen, Edward, (1853-1943), Antiquary
- Owen, Elias, (1833-1899), Curate of Llanyblodwel Headmaster and Antiquary
- Owen, Ellis, (1789-1868), Welsh antiquary and poet
- Owen, Evan, (d ? 1924), Writer On Welsh Nonconformity Historian
- Owen, George, (1552-1613), Welsh antiquary and historian
- Owen, Geraint Dyfnallt, (1908-1993), Historian and Novelist
- Owen, Goronwy, (1723-1769), Welsh poet
- Owen, Henry, (1844-1919), solicitor and antiquary
- Owen, Herbert Isambard, (1850-1927), Deputy-Chancellor of the University of Wales
- Owen, Hugh, (1761-1827), archdeacon of Shropshire, antiquary
- Owen, Sir Hugh, (1804-1881), Knight Promoter of Welsh Education
- Owen, Hugh, (1880-1953), Author and Historian
- Owen, John, (d 1759), poet and harpist
- Owen, John, (1766-1822), Secretary of the British and Foreign Bible Society
- Owen, John, (1821-1883), Welsh musician
- Owen, John, (1854-1926), Bishop of St Davids
- Owen, John, (1863-1953), Welsh Presbyterian minister
- Owen, John, (1873-1914), composer
- Owen, Morfydd Llwyn, (1891-1918), musician
- Owen, Nicholas, (1752-1811), Curate of Llanfihangel, Antiquary
- Owen, Owen, (1786-1867), Poet as Owain Lleyn
- Owen, Owen Griffith, (1847-1916), Calvinistic Methodist Minister and poet as Alafon
- Owen, Sir Richard, (1804-1892), Knight, comparative anatomist and palaeontologist
- Owen, Sir Robert, (1658-1698), Knight Politician
- Owen, Robert, (1771-1858), Socialist and Philanthropist
- Owen, Robert, (1834-1899), Calvinistic Methodist Minister Author Historian
- Owen, Robert, (1885-1962), Welsh antiquary and genealogist as Bob Owen Croesor
- Owen, Thomas, (1872-1956), Welsh writer as Hesgin
- Owen, William, (? 1530-1587), Welsh poet
- Owen, William, (1607-1670), Governor of Harlech
- Owen, William, (d 1778), Captain RN
- Owen, William, (1758-1837), King's Counsel Bankruptcy Commissioner
- Owen, William Griffith, (1857-1922), Poet as Llifon
- Owens, Owen, (1792-1862), Welsh Independent Minister, schoolmaster
- Paget, George Henry Charles Victor, (1922-2013), 7th Marquess of Anglesey
- Pakenham-Walsh, Mabel, (b 1937), Painter and Sculptor
- Palgrave, Sir Francis, (1788-1861), Knight, barrister, antiquary and archivist
- Palmer, Alfred Neobard, (1847-1915), historian
- Pamplin, William, (1806-1899), botanist
- Panizzi, Sir Anthony, (1797-1879), Knight, Knight Principal Librarian of the British Museum
- Panton, Paul, (1727-1797), lawyer and antiquary
- Panton, Paul, (1758-1822), Lawyer Antiquary and Author as Monensis
- Panzera, Francis William, (1851-1917), Lieutenant Colonel Engineer
- Parch, Richard Cust, (1728-83), Chaplain to the Speaker of the House of Commons, Dean of Rochester and Dean of Lincoln
- Pares, Sir Bernard, (1867-1949), Knight historian of Russia
- Pares, Richard, (1902-1958), historian
- Parker, Charles, (1919-1980), BBC radio producer
- Parker, Sir William, (1781-1866), 1st Baronet, Admiral of the Fleet
- Parkes, David, (1763-1833), Schoolmaster Draughtsman and Antiquary
- Parry, Annie Julian, (1889-1972), teacher
- Parry, Catherine, (d 1788), Novelist
- Parry, Sir David Hughes, (1893-1973), Knight Professor of Law
- Parry, Edward, (1798-1854), Publisher and Antiquary
- Parry, Gordon Samuel David, (b 1925), Baron Parry of Neyland
- Parry, Griffith, (1827-1901), Calvinistic Methhodist Minister and Author
- Parry, Gwenlyn, (1932-1991), dramatist and script writer
- Parry, John, (1888-1965), driver, Royal Field Artillery Derwen, Denbighshire
- Parry, John Orlando, (1810-1879), Singer and Entertainer
- Parry, Joseph, (1841-1903), composer
- Parry, Richard, (1560-1623), Bishop of St Asaph
- Parry, Richard, (1803-1897), Independent Minister, author and poet as Gwalchmai
- Parry, Robert, (fl 1540-1612), Welsh author and diarist
- Parry, Robert Williams, (1884-1956), poet
- Parry, Sarah Winifred, (1870-1953), Writer called Winnie Parry
- Parry, Sir Thomas, (1904-1985), Knight Principal of the University College of Wales Aberystwyth
- Parry, Thomas, (1904-1985), Scholar Critic and Editor
- Parry, William John, (1842-1927), Labour Leader and Author
- Parry-Jones, Daniel, (1891-1981), Author
- Parry-Williams, Sir Thomas Herbert, (1887-1975), Knight, poet, essayist and scholar
- Paton, John Lewis, (1863-1946), educationalist
- Patti, Adelina, (1843-1919), opera singer
- Pattison, Mark, (1813-1884), Rector of Lincoln College Oxford Biographer
- Payne, Ffransis George, (1900-1992), Folk historian
- Payne, Henry Thomas, (1759-1832), Archdeacon of Carmarthen Ecclesiastical Historian
- Peate, Iorwerth Cyfeiliog, (1901-1982), Curator of Welsh Folk Museum Archaeologist
- Pedersen, Holger, (1867-1953), Danish Linguist
- Pember, Edward Henry, (1833-1911), Lawyer Poet
- Peniston, Lamb, (fl 1708-1735), Lawyer
- Penman, Sharon Kay, (1945-2021), American historical novelist
- Pennant, David, (1763-1841), artist
- Pennant, Richard, (? 1737-1808), Baron Penrhyn, politician
- Pennant, Thomas, (1726-1798), naturalist, traveller and topographer
- Penn-Lewis, Jessie, (1861-1927), author and evangelist
- Perceval, Spencer, (1762-1812), statesman
- Percy, Thomas, (1729-1811), Bishop of Dromore, antiquary
- Peter, John, (1833-1877), Welsh Independent Minister Scholar as Ioan Pedr
- Pettitt, Ann, (b1947), Artist Writer Campaigner
- Petts, John, (1914-1991), Artist and Engraver
- Petty-Fitzmaurice, Henry, (1780-1863), 3rd Marquess of Lansdowne, statesman
- Petty-Fitzmaurice, Henry Thomas, (1816-1866), 4th Marquess of Lansdowne
- Philipps, Sir Charles Edward Gregg, (1840-1928), 1st Baronet
- Philipps, Sir John, (d 1737), 4th Baronet MP
- Philipps, Sir John, (1701-1764), 6th Baronet Commissioner of Board of Trade
- Philipps, Richard, (1744-1823), Baron Milford
- Philips, Katherine, (1631-1664), poet and translator
- Philips, Richard, (1891-1983), Agriculturalist and Author
- Phillimore, Egerton Grenville Bagot, (1856-1937), antiquarian book dealer, antiquary and Celtic scholar
- Phillimore, Joseph, (1775-1855), MP Professor of Civil Law
- Phillipps, Sir Thomas, (1792-1872) 1st Baronet Phillips, antiquary, collector of MSS and books
- Phillips, David, (1812-1904), Calvinistic Methodist Minister Poet
- Phillips, David Rhys, (1862-1952), librarian and historian of the Vale of Neath
- Phillips, Edgar, (1889-1962), Archdruid of Wales and Poet as Trefin
- Phillips, Evan Owen, (d 1897), Dean of St Davids
- Phillips, Griffith, (1846-1920), Poet as Briwlyn
- Phillips, John, (1800-1874), geologist
- Phillips, John, (1810-1877), Printer and Poet as Tegidon
- Phillips, John, (1810-1867), Calvinistic Methodist Principal of Normal College Bangor
- Phillips, Mollie Doreen, (1907-1994), figure skater
- Phillips, Robert, (1749-1822), Barrister MP
- Phillips, Sir Thomas, (1801-1867), Knight Mayor of Newport
- Phillips, Thomas, (1806-1870), Calvinistic Methodist Minister
- Phillips, William, (1775-1828), Mineralogist and Geologist
- Phillpotts, Henry, (1778-1869), Bishop of Exeter
- Phipps, Sir Charles Beaumont, (1801-1866), Knight, Lieutenant Colonel and official of Royal Household
- Picton, Sir Thomas, (1758-1815), Knight Lieutenant General Governor of Trinidad
- Pierce, Ellis, (1841-1912), bookseller, antiquary and author
- Pierce, Evan, (1808-1895), Welsh Physician
- Pierce, Rice, (c 1684-1766), Rector of Llangelynnin
- Pierce, Thomas Jones, (1905-1964), historian
- Piercy, Benjamin, (1827-1888), Railway Engineer
- Piette, Jean Raymond Francois, (1920-1971), Celtic Scholar
- Pigott, Charlotte, (c1808-1883), wife of George Pigott
- Pigott, George Grenville Wandesford, (1796-1865), MP
- Pinker, James Brand, (1863-1922), literary agent
- Piozzi, Hester Lynch, (1741-1821), literary figure and writer
- Pitt, Thomas, (1775-1804), 2nd Baron Camelford
- Playfair, Lyon, (1818-1898), 1st Baron Playfair of St Andrews, chemist
- Plummer, Alfred, (1841-1926), Theologian
- Plunket, William Conyngham, (1764-1854), 1st Baron Plunket, Lord Chancellor of Ireland
- Plunkett, Sir Horace Curzon, (1854-1932), Knight, Irish statesman
- Poingdestre, Jean, (1609-1691), Historian Writer On Jersey
- Pollinger, Laurence, (fl 1944-1964), Literary Agent
- Pollock, Sir William Frederick, (1815-1888), 2nd Baronet Queens Remembrancer Author
- Ponsonby, Sarah, (1755-1831), one of the "Ladies of Llangollen"
- Porter, Sir Robert Ker, (1777-1842), Knight, painter and traveller
- Potter, Robert, (1721-1804), Poet and Politician
- Pound, Ezra Loomis, (1885-1972), poet
- Povey, Meic, (b1950), playwright Cardiff, Glamorgan
- Powel, Thomas, (1845-1922), Celtic Scholar
- Powell, Dewi Watcyn, (1920-2015), judge Merthyr Tydfil, Glamorgan;Wales
- Powell, George Eyre, (1790-1855), Commander RN
- Powell, John Enoch, (1912-1998), politician and author
- Powell, Lewis, (fl 1630) Lamphey, Pembrokeshire
- Powell, Raymond, (1928-2001), knight MP
- Powell, Thomas, (1735-1820), poet
- Powell, William Edward, (1788-1854), MP
- Powell, William Thomas Rowland, (1815-1878), MP
- Power, Sir John Cecil, (1870-1950), 1st Baronet MP
- Powys, John Cowper, (1872-1963), novelist and writer
- Powys, Llewelyn, (1884-1939), Author
- Powys, Theodore Francis, (1875-1953), author
- Pretyman, Sir George Tindal, (1845-1917), Knight Major General
- Price, David, (1762-1835), orientalist and historian
- Price, David, (1865-1931), Baptist minister
- Price, James, (1917-2006), civil engineer
- Price, John, (1830-1906), principal of the Normal College, Bangor
- Price, Rees, (fl 1850-1893), Baptist minister
- Price, Richard, (1723-1791), dissenting minister, philosopher and actuary
- Price, Thomas, (1787-1848), historian
- Price, Sir Uvedale, (1747-1829), 1st Baronet, writer on landscape gardening
- Price, William, (1800-1893), cremation advocate
- Price, William Watkin, (1873-1967), Welsh historian
- Prichard, Caradog, (1904-1980), Poet and Novelist
- Prichard, John, (1796-1875), Welsh Baptist Minister, tutor and author
- Pride, W Emrys, (b 1904), Civil Servant
- Primrose, Archibald Philip, (1847-1929), 5th Earl of Rosebery, statesman
- Prior, Thomas, (d 1843), vice provost of Trinity College Dublin
- Pritchard, Caradog, (1904-1980), novelist and journalist
- Pritchard, Evan, (1769-1832), Poet as Ieuan Lleyn
- Pritchard Jones, Harri Elwyn, (1933-2015), Welsh language author, critic, and psychiatrist Dudley, Worcestershire;Anglesey;Dublin, County Dublin;Cardiff, Glamorgan
- Pritt, Denis Nowell, (1887-1972), MP, lawyer and author
- Probyn, Sir Edmund, (1678-1742), Knight Judge
- Profumo, John Dennis, (1915-2006), politician
- Prosser, David Lewis, (1868-1950), Archbishop of Wales
- Prothero, Cliff, (1898-1990), Secretary of the Welsh Regional Council of Labour
- Protheroe, Daniel, (1866-1934), Musician
- Pryce, Arthur Ivor, (1867-1940), Bangor Antiquary
- Pryce, Lewis Hugh Oswald, (1873-1930), Archdeacon of Wrexham
- Pryce, Lucy Myfanwy, (1890-1976), Novelist and Short Story Writer
- Pryce, Shadrach, (1833-1914), Dean of St Asaph
- Prys, Owen, (1857-1934), Principal of Aberystwyth Theological College
- Prys-Davies, Gwilym, (1923-2017), Labour politician
- Pryse, Edward Lewis, (1817-1888), MP for Cardigan
- Pryse, Pryse, (1774-1849), MP
- Pryse, Robert John, (1807-1889), Welsh Author and Lexicographer
- Pryse-Saunders, Sir George Rice, (1870-1948), 4th Baronet
- Prys-Jones, Arthur Glyn, (1888-1987), Anglo Welsh Writer
- Puddicombe, Anne Adalisa, (1836-1908), novelist
- Pugh, Francis, (1720-1811), Moravian Minister
- Pugh, Hugh, (1803-1868), Independent Minister and Schoolmaster
- Pugh, John, (1846-1907), Calvinistic Methodist Minister
- Pugh, John, (fl 1849-1890), Calvinistic Methodist Minister at Llanfechain and Holywell
- Pugh, Lewis Pugh, (1837-1908), MP for Cardiganshire
- Pugh, Philip, (1679-1760), Congregational minister
- Pugh, Sir William John, (1892-1974), Knight, geologist
- Pughe, John, (1815-1874), Physician and Litterateur
- Pughe, William Owen, (1759-1835), antiquary and lexicographer
- Puleston, Sir John Henry, (1829-1908), Knight Politician
- Quiggin, Edmund Crosby, (1875-1920), Celtic and linguistic scholar
- Radclyffe, Anthony James, (1757-1814), 5th Earl of Newburgh
- Radford, Courtenay Arthur Ralegh, (1900-1998), Archaeologist
- Raffan, Keith William Twort, (b 1949), MP
- Raine, Kathleen Jessie, (1908-2003), poet
- Ramsay, Sir Andrew Crombie, (1814-1891), Knight, geologist
- Randall, Henry John, (1877-1964), Solicitor Archaeologist and Antiquary
- Ratcliffe, Samuel Kerkham, (1868-1958), journalist and lecturer
- Rathbone, Hugh Reynolds, (1862-1940), Businessman MP
- Rawlins, Monica Octavie, (1903-1990), Artist and Goose Breeder
- Rees, Alwyn, (1911-1974), Welsh Nationalist Author and Journalist
- Rees, David, (1801-1869), Welsh Congregational Minister, editor
- Rees, David, (1818-1904), Calvinistic Methodist Preacher
- Rees, Evan, (1850-1923), Calvinistic Methodist Minister, poet as Dyfed
- Rees, Henry, (1798-1869), Calvinistic Methodist Minister
- Rees, Sir James Frederick, (1883-1967), Knight, historian and public servant
- Rees, John Collwyn, (1919-1980), Professor of Political Theory and Government
- Rees, John Thomas, (1857-1949), composer and conductor
- Rees, Jonathan, (1841-1905), essayist, educationist and poet as Nathan Wyn
- Rees, Lilian, (c 1920-1996), author
- Rees, Mati, (1902-1989), author and broadcaster
- Rees, Morgan Goronwy, (1909-1979), writer and university principal
- Rees, Thomas, (1815-1885), Independent Minister and Historian
- Rees, Thomas, (1869-1926), Principal of Bala Bangor Independent College
- Rees, Thomas Ifor, (1890-1977), diplomat, translator and publisher
- Rees, William, (1802-1883), Independent minister, politician and poet
- Rees, William, (c1824-1898), Welsh clergyman Llangyfelach, Glamorgan;Swansea, Glamorgan;Llanboidy, Carmarthenshire
- Rees, William, (1887-1978), historian
- Rees, William Jenkins, (1772-1855), Vicar of Heyop, antiquary
- Rees, William Melville, (1873-1929), surgeon, RN
- Rees, William Thomas, (1838-1904), Welsh musician
- Reeve, Henry, (1813-1895), journalist and writer
- Reichel, Sir Harry Rudolph, (1856-1931), Knight Principal University College Bangor
- Reilly, Sir D'Arcy Patrick, (1909-1999), Politician
- Relly, James, (? 1722-1778), Universalist
- Rendel, Sir Alexander Meadows, (1829-1918), Knight, civil engineer
- Rendel, George Wightwick, (1833-1902), Civil Engineer
- Rendel, Sir George William, (1889-1979), Knight Diplomat
- Rendel, James Meadows, (1799-1856), Engineer
- Rendel, Stuart, (1834-1913), Baron Rendel, politician
- Repton, Humphry, (1752-1818), landscape gardener
- Rhydderch, Llio, (fl1951-1980), traditional Welsh harper
- Rhys, Edward Prosser, (1901-1945), Editor and Poet
- Rhys, Ernest Percival, (1859-1946), author and editor
- Rhys, James Ednyfed, (1876-1960), Writer as Ap Nathan
- Rhys, Sir John, (1840-1915), Knight, Celtic scholar historian
- Rice, George, (c 1724-1779), Politician
- Richard, Ebenezer, (1781-1837), Calvinistic Methodist Minister
- Richard, Henry, (1812-1888), MP Secretary of the Peace Society
- Richard, Thomas, (1783-1856), Calvinistic Methodist minister
- Richard, Timothy, (1845-1919), missionary to China
- Richards, Alun, (1929-2004), novelist and playwright
- Richards, Brinley, (1904-1981), Archdruid of Wales
- Richards, Ceri Giraldus, (1903-1971), painter
- Richards, David, (1751-1827), Welsh poet as Dafydd Ionawr
- Richards, Edward, (1893-1973), Welsh musician Wales
- Richards, Frances, (1903-1985), painter, potter and illustrator
- Richards, Frederick Charles, (1878-1932), Etcher and Author
- Richards, Gwnfryn, (1902-1992), Dean of Bangor
- Richards, Henry Brinley, (1819-1885), Pianist and Composer
- Richards, Henry Caselli, (1884-1949), Geologist
- Richards, John Lloyd, (1790-1854), Vicar of Llanwddyn
- Richards, Mary, (1787-1877), Copyist of Welsh Literature and Music
- Richards, Nansi, (1888-1979), Harpist
- Richards, Robert, (1884-1954), MP
- Richards, Thomas, (1754-1837), Vicar of Darowen
- Richards, Thomas, (1878-1962), Historian and Essayist
- Richards, William Leslie, (1916-1989), Poet and Novelist
- Ringstead, Thomas, (fl 1346-1366)
- Ritchie, Anne Isabella, (1837-1919), novelist and biographer
- Ritson, Joseph, (1752-1803), Literary Critic
- Roberts, Edward, (1819-1867), Welsh Baptist Minister Poet as Iorwerth Glan Aled
- Roberts, Elwyn, (1904-1988), General Secretary of Plaid Cymru
- Roberts, Emrys Owain, (1910-1990), MP and Chairman of the Development Board for Rural Wales
- Roberts, Evan, (1718-1804), Methodist
- Roberts, Frederick Sleigh, (1832-1914), 1st Earl Roberts of Kandahar, Field Marshal
- Roberts, Gomer Morgan, (1904-1993), Calvinistic Methodist minister and historian
- Roberts, Griffith Thomas, (1845-1943), Anglican clergyman and author Dublin, County Dublin;Tynycoed, Denbighshire;Bottwnnog, Caernarfonshire;Llanegryn, Merionethshire;Dowlais, Glamorgan;Cardiff, Glamorgan;Bangor, Caernarfonshire
- Roberts, Gruffydd , (fl1993-2016), teacher in Patagonia
- Roberts, Gwen Rees, (1916-2002), Calvinistic Methodist missionary
- Roberts, Howard Lloyd, (1879-1935), Lance Corporal, Royal Army Medical Corp? and B&W Illustrator Borth, Cardiganshire;London;Aberystwyth, Cardiganshire
- Roberts, Hugh, (1832-1907), Writer as Yr Hen Idris
- Roberts, Hugh, (1841-1916), Calvinistic Methodist Minister and Missionary
- Roberts, John, (1749-1817), poet
- Roberts, John, (1753-1834), Calvinistic Methodist minister
- Roberts, John, (1767-1834), Independent minister and theologian
- Roberts, John, (fl 1773-1827), Deputy Diocesan Registrar, Bangor
- Roberts, John, (1804-1884), Welsh Independent minister, editor and poet
- Roberts, John, (1816-1894), harpist
- Roberts, John, (d1890), Baptist minister
- Roberts, John, (1822-1877), Calvinistic Methodist minister and musician
- Roberts, John, (fl 1878-1915), antiquary
- Roberts, John Bryn, (1847-1931), judge and politician
- Roberts, John Foulkes, (1817-1902), merchant and educationist
- Roberts, John Glyn, (c1911-1939), journalist
- Roberts, John Herbert, (1863-1955), 1st Baron Clwyd, MP
- Roberts, John John, (1840-1914), Calvinistic Methodist minister and poet
- Roberts, Kate, (1891-1985), Novelist
- Roberts, Morris Selyf, (1912-1995), Novelist and Short Story Writer
- Roberts, Richard Arthur, (1851-1943), archivist
- Roberts, Richard Ellis, (1879-1953), journalist
- Roberts, Robert, (1834-1885), Welsh Clergyman and Scholar
- Roberts, Robert, (1839-1914), Poet as Isallt
- Roberts, Robert David, (1820-1893), Baptist Minister
- Roberts, Robert Davies, (1851-1911), Educational Administrator
- Roberts, Roger, (fl 1945-1997), Welsh clergyman and Liberal parliamentary candidat
- Roberts, Samuel, (1800-1885), Social and Political Reformer
- Roberts, Thomas, (1735-1804), member of the Trevecka family
- Roberts, Thomas, (1816-1887), Welsh Independent Minister, author as Scorpion
- Roberts, Thomas, (1835-1899), Calvinistic Methodist Minister
- Roberts, Thomas Francis, (1860-1919), Principal of University College Aberystwyth
- Roberts, Thomas Griffiths, (c 1793-1852), Canon of St Asaph
- Roberts, William, (1784-1864), Calvinistic Methodist Minister
- Roberts, William, (1813-1872), Baptist Minister, printer, antiquary and author as Nefydd
- Roberts, William, (1830-1886), Calvinistic Methodist Minister Antiquary
- Roberts, William John, (1828-1904), bibliophile, printer and poet
- Roberts, Wyn, (1930-2013), Baron Roberts of Conwy, Conservative politician
- Robertson, Henry, (1816-1888), MP, civil engineer and railway pioneer
- Robertson, Sir Henry Beyer, (1862-1948), Knight, engineer and steel manufacturer
- Roch, Walter Francis, (1880-1965), MP
- Rodger, Sir John Pickersgill, (1851-1910), Knight Colonial Governor
- Rodin, Francois Auguste Rene, (1840-1917), French Sculptor
- Rogers, Emlyn, (1895-1954), Welsh historian
- Rogers, Henry, (c 1769-1812), Curate of Helions Bumpstead Missionary to West Indies
- Rogers, John Bellas, (fl 1856-1900), Solicitor
- Rollason, Arthur Adolphus, (fl 1880-1922), Antiquary
- Rolls, John Allan, (1837-1912), 1st Baron Llangattock
- Rose, George, (1744-1818), politician and publicist
- Rotely, Lewis, (1785-1861), Major, Royal Marines
- Rothenstein, Sir William, (1872-1945), Knight, painter
- Rowland, Daniel, (1713-1790), Welsh Methodist Revivalist
- Rowland, Sir John, (1877-1941), Knight Administrator
- Rowland, Robert David, (c 1853-1944), Calvinistic Methodist Journalist, poet as Anthropos
- Rowlands, Ceinwen, (1905-1983), singer
- Rowlands, Daniel, (1827-1917), Principal of the Normal College Bangor
- Rowlands, Edward, (b 1940), MP
- Rowlands, Henry, (1551-1616), Bishop of Bangor
- Rowlands, Jane Helen, (1891-1955), missionary India
- Rowlands, Robert John, (1880-1967), Poet and Journalist Called Meuryn
- Rubens, Bernice Ruth, (b 1927), Novelist
- Ruck, Berta, (1878-1978), novelist India;Bangor, Caernarfonshire;Aberdyfi, Merionethshire
- Russell, Lord John, (1792-1878), 1st Earl Russell, statesman
- Rutherston, Albert Daniel, (1881-1953), Artist and Designer
- Salesbury, William, (? 1520-? 1584), Translator of New Testament Into Welsh
- Salisbury, William, (fl 1580-1659), Governor of Denbigh Castle
- Salisbury-Jones, Thomas, (1882-1967), writer
- Salmon, Charles Edgar, (1872-1930), Botanist
- Salmon, David, (1852-1945), principal of Swansea Training College and historian
- Salter, John Henry, (1862-1942), Botanist
- Sampson, John, (1862-1931), Romany scholar
- Samuel, David, (1856-1921), schoolmaster, antiquary and writer as Dewi o Geredigion
- Samuel, Herbert Louis, (1870-1963), 1st Viscount Samuel, statesman
- Samuel, William Thomas, (1852-1917), Musician
- Samwell, David, (1751-1798), Naval Surgeon and Poet
- Sandford, Christopher, (1902-1983), Author Book Designer and Publisher
- Sandys, William, (1792-1874), Solicitor and Antiquary
- Sartoris, Edward John, (1817-1888), MP Carmarthenshire
- Saunders, Sir Alexander Morris Carr-, (1886-1966), Knight, economist and educationist
- Savill, Ifana , (fl2011-2017), scriptwriter
- Savory, Hubert Newman, (1911-2001), archaeologist
- Saward, Michael Henry, (1840-1928), Major General
- Saxton, Sir Charles, (1773-1838), 2nd Baronet MP
- Sayce, Roderick Urwick, (1890-1970), Geographer and Editor of 'montgomeryshire Collections'
- Scott, David, (1746-1805), Chairman of East India Co
- Scott, Henrietta Louisa, (1785-1858), Countess of Clonmell
- Scott, John Waugh, (1878-1974), philosopher
- Scott, Thomas, (1783-1838), 2nd Earl of Clonmell
- Scott-Ellis, Thomas Evelyn, (1880-1946), 8th Baron Howard de Walden
- Scourfield, Sir John Henry, (1808-1876), 1st Baronet MP and Author
- Seabrooke, Sir James Herbert, (1852-1933), Knight, Indian civil servant
- Secombe, Harold Donald, (1921-2001), Welsh comedian, actor, singer and television presenter
- Selby-Bigge, Sir Lewis Amherst, (1860-1951), 1st Baronet Permanent Secretary for Education
- Selwood, Nansi, (b1921), Welsh author and bard Penderyn, Brecknockshire
- Senior, Nassau William, (1790-1864), economist
- Sergeant, Herbert Howard, (1914-1987), poet
- Seward, Anna, (1747-1809), poet and author
- Shakespeare, Sir Geoffrey Hithersay, (1893-1980), 1st Baronet Politician
- Shaw, George Bernard, (1856-1950), author and playwright
- Shawcross, Hartley William, (1902-2003), Baron Shawcross, politician
- Shelley, Frances, (1787-1873), diarist
- Sheringham, John Guy Tempest, (1913-1995), Historian
- Shipley, Jonathan, (1714-1788), Bishop of St Asaph
- Shipley, William Davies, (1745-1826), Dean of St Asaph
- Short, Thomas Vowler, (1790-1872), Bishop of St Asaph
- Silyn Roberts, Mary, (fl1925-1975), of the Workers Education Authority
- Simon, Cassie, (1898-1989), co-founder of Cwmdwr Children's Choir
- Simon, William Glyn Hughes, (1903-1972), Archbishop of Wales
- Sinclair, Archibald Henry Macdonald, (1890-1970), 1st Viscount Thurso, politician
- Smallwood, Robert Henry Gough, (1864-1943), Antiquary
- Smart, William, (1853-1915), economist
- Smith, Charles Roach, (1807-1890), antiquary
- Smith, Samuel, (1836-1906), Liberal MP
- Smith, Sir William, (1813-1893), Knight, lexicographer
- Smith, William Henry, (1825-1891), statesman
- Smitham, David, (fl 1990-1997), painter and lecturer
- Smyth, Dame Ethel Mary, (1858-1944), composer and Suffragist
- Smyth, Sir Warington Wilkinson, (1817-1890), Knight Mineralogist
- Smythe, Emily Anne, (1826-1887), nursing reformer and travel writer
- Somerset, Lord Fitzroy James Henry, (1788-1855), 1st Baron Raglan, Field Marshal
- Somerset, Henry, (1629-1700), 1st Duke of Beaufort
- Somerset, William, (1526-1589), 3rd Earl of Worcester
- Somervell, Sir Arthur, (1863-1937), Knight Composer
- Southey, Robert, (1774-1843), poet, journalist and biographer
- Sowerby, James, (1757-1822), naturalist
- Spencer, Aubrey George, (1795-1872), Bishop of Jamaica
- Spiers, Victor Julian Taylor, (d 1937), Professor of French Language and Literature
- Spring-Rice, Thomas, (1790-1866), 1st Baron Monteagle of Brandon in Kerry, statesman
- Spurrell, William, (1813-1889), Printer and Publisher
- Stafford, Humphrey, (1402-1460), 1st Duke of Buckingham
- Stanhope, Elizabeth, (d1898), Countess of Harrington
- Stanhope, Philip Henry, (1805-1875), 5th Earl Stanhope, historian
- Stanley, Arthur Penrhyn, (1815-1881), Dean of Westminster Abbey, historian Nether Alderley, Cheshire
- Stanley, Dorothy, (1855-1926), painter
- Stanley, Sir Henry Morton, (1841-1904), Knight, explorer and journalist
- Stanley, William Owen, (1802-1884), Lord Lieutenant of Anglesey, MP and antiquary
- Stephen, Edward, (1822-1885), Welsh Congregational Minister, musician as Tanymarian
- Stephens, George Arbour, (1870-1945), Physician and Educationalist
- Stephens, Meic, (b 1938), Poet and Editor
- Stephens, Thomas, (1821-1875), Welsh Scholar Historian
- Stephenson, George, (1781-1848), Railway Engineer Wylam, Northumberland
- Stevenson, William Barron, (1869-1954), Professor of Hebrew, Glasgow University
- Stewart, Sir Donald Martin, (1824-1900), Knight and Field Marshal
- Stewart, John, (1736-1806), 7th Earl of Galloway
- Stokes, Jonathan, (1755-1831), Physician and Botanist
- Strachey, Sir Henry, (1736-1810), 1st Baronet Politician
- Strachey, John St Loe, (1860-1927), editor and proprietor of the Spectator
- Stradling, Sir Edward, (c 1672-1735), 5th Baronet MP
- Strange, Sir Thomas Andrew Lumisden, (1756-1841), Knight, Indian jurist
- Strick, George Henry , (1855-1940), industrialist
- Strutt, Sir Henry Austin, (1903-1979), Knight, Civil Servant
- Stukeley, William, (1687-1765), Anglican clergyman, physician, antiquary and archaeologist
- Sutherland, Graham Vivian, (1903-1980), painter
- Swann, John Hibbert, (fl 1895-1908), Librarian and Antiquary
- Sylvester, Albert James, (1889-1989), Principal Private Secretary to David Lloyd George
- Szlumper, Sir James Weeks, (1834-1926), Knight, railway engineer
- Talbot, Christopher Rice Mansel, (1803-1890), Liberal MP
- Talbot, Thomas, (c1535-?1600), Keeper of Tower Records Antiquary
- Talbot, William Henry Fox, (1800-1877), MP pioneer of photography
- Tann, Hilary, (fl 1947-2010), contemporary composer Wales
- Taubman, Mary, (b 1929), writer
- Tawney, Charles Henry, (1837-1922), Bengal Educational Administrator
- Tawney, Richard Henry, (1880-1962), historian
- Taylor, Dorothy, (b 1906), geographer
- Taylor, Henry, (1845-1927), solicitor, antiquary and historian
- Temple, Henry John, (1784-1865), 3rd Viscount Palmerston, statesman
- Temple-Morris, Peter, (b 1938), Baron Temple-Morris, politician Leominster, Herefordshire;Cardiff, Glamorgan
- Temple-Nugent-Brydges-Chandos-Grenville, Anna Elizabeth , (1779-1836), Duchess of Buckingham
- Temple-Nugent-Brydges-Chandos-Grenville, Richard, (1776-1839), 1st Duke of Buckingham and Chandos
- Tenison, Thomas, (1636-1715), Archbishop of Canterbury controversialist collector of MSS
- Tennyson, Alfred, (1809-1892), 1st Baron Tennyson, poet
- Tennyson, Sir Charles Bruce Locker, (1879-1977), Knight Author and Businessman
- Thatcher, Dora, (1912-1985), Writer of Children's Books
- Thatcher, Margaret Hilda, (1925-2013), Baroness Thatcher, of Kesteven in the County of Lincolnshire, Prime Minister
- Thirlwall, Newell Connop, (1797-1875), Bishop of St Davids historian
- Thomas, Afaon Daniel, (1871-1924), Congregational Minister
- Thomas, Alfred, (1840-1927), 1st Baron Pontypridd
- Thomas, Sir Ben Bowen, (1899-1977), Knight Educationalist Public Servant Author
- Thomas, Benjamin, (1836-1893), Welsh Baptist Minister, author and poet as Myfyr Emlyn
- Thomas, Brinley, (1906-1994), Professor of Economics
- Thomas, Caitlin, (1913-1994), author Hammersmith, Middlesex
- Thomas, Dafydd Elis, (b 1946), Baron Elis Thomas, politician
- Thomas, Sir Daniel Lleufer, (1863-1940), Knight Barrister Public Servant Historian
- Thomas, David, (1760-1822), Welsh Poet as Dafydd Ddu Eryri
- Thomas, David, (1861-1933), Welsh poet as Dewi Glanrhondda
- Thomas, David Alfred, (1856-1918), Viscount Rhondda
- Thomas, David Emlyn, (1892-1954), Labour MP
- Thomas, David Richard, (1833-1916), Archdeacon of Montgomery and historian
- Thomas, Dylan, (1914-1953), poet and dramatist Swansea, Glamorgan
- Thomas, E J, (d ? 1972), Schoolmaster and Local Historian
- Thomas, Ebenezer, (1802-1863), Schoolmaster and Poet as Eben Fardd
- Thomas, Edward Morley, (b 1936), critic and editor
- Thomas, Ernest Lewis, (1904-1983), Welsh author Talley, Carmarthenshire;Bristol, Gloucestershire
- Thomas, Gwyn, (1913-1981), Novelist Short Story Writer and Playwright
- Thomas, Helen, (1877-1967), writer
- Thomas, J Mansel, (1912-1979), Writer
- Thomas, Jeffrey, (1933-1989), Labour MP
- Thomas, John, (1786-1859), Welsh Poet as Sion Wyn O Eifion
- Thomas, John, (1821-1892), Independent Minister Politician Historian
- Thomas, John, (1826-1913), Welsh musician as Pencerdd Gwalia
- Thomas, John, (1839-1921), Musician
- Thomas, John Myrddin, (1838-1914), Independent Minister
- Thomas, John Owen, (1862-1928), principal of Bala College
- Thomas, John William, (1805-1840), Welsh mathematician as Arfonwyson
- Thomas, Joseph, (1814-1889), Calvinistic Methodist Minister
- Thomas, Owen, (1808-1889), Congregational minister
- Thomas, Owen, (1812-1891), Calvinist Methodist Minister Historian
- Thomas, Peter John Mitchell, (1920-2008), Lord Thomas of Gwydir, barrister, MP, Secretary of State for Wales
- Thomas, Philip Edward, (1878-1917), poet and prose writer
- Thomas, Ronald Stuart, (1913-2000), poet
- Thomas, Rowland, (1789-1856), Poet and Writer as Idris Ddu
- Thomas, Simon, (b1963), Plaid Cymru politician Trecynon, Aberdare;Aberystwyth, Cardiganshire
- Thomas, Thomas George, (1909-1997), Viscount Tonypandy, Speaker of the House of Commons
- Thomas, Thomas Henry, (1839-1915), Artist and Botanist
- Thomas, William, (1832-1878), Calvinistic Methodist Minister, poet as Islwyn Ynysddu, Monmouthshire
- Thomas, William, (1834-1879), Unitarian Minister, social reformer, author as Gwilym Marles
- Thomas, William, (1843-1890), Chief-Vicar of St Asaph, antiquary and poet as Glanffrwd
- Thomas, William, (1890-1974), Director of the Council of Social Services for Wales
- Thomas, William George Hargrave, (1888-c 1982), Vicar of Needham Market
- Thompson, Henry Yates, (1838-1928), collector of MSS and books
- Thomson, William, (1819-1890), Archbishop of York
- Thornton, John, (1720-1790), Evangelical
- Thwaite, Anthony Simon, (b 1930), writer and poet Chester, Cheshire
- Tibbot, Richard, (1719-1798), Congregational Minister
- Tillett, Ben, (1860-1943), Labour Leader MP
- Tilley, Albert, (fl 1945), Antiquary
- Tomos, Angharad, (b1958), author Bangor, Caernarfonshire;Llanwnda, Caernarfonshire
- Touhig, James Donnelly , (b1947), Baron Touhig
- Tout, Thomas Frederick, (1855-1929), historian
- Tower, Maria, (fl 1806-1861), daughter of Sir Eliab Harvey
- Townsend, Francis, (1748-1819), Herald and Genealogist
- Townshend, George, (1724-1807), 1st Marquess Townshend, Field Marshal
- Traherne, John Montgomery, (1788-1860), Chancellor of the diocese of Llandaff, antiquary
- Tregelles, Samuel Prideaux, (1813-1875), biblical scholar
- Treharne, Reginald Francis, (1901-1967), Historian
- Trevelyan, Sir George Otto, (1838-1928), 2nd Baronet Statesman and Historian
- Trevor, Arthur Hill-, (1798-1862), 3rd Viscount Dungannon
- Trevor, George Rice Rice-, (1795-1869), 4th Baron Dynevor
- Trevor, Sir John, (1637-1717), Knight, judge and Speaker of the House of Commons
- Trimmer, Joshua, (1795-1857), Geologist
- Tripp, John, (1927-1986), poet, journalist and literary editor of Planet magazine
- Tufnell, Edward Carleton, (1806-1886), Assistant Poor Law Commissioner
- Turner, Sharon, (1768-1847), historian, attorney and Anglo-Saxon scholar
- Twemlow, Jesse Alfred, (1868-1954), Palaeographer
- Twisleton, Edward Turner Boyd, (1809-1874), Civil Service Commissioner
- Tyrell-Kenyon, Lloyd, (1864-1927), 4th Baron Kenyon
- Unnamed male, (fl 1822), Welsh travel diarist Monmouthshire;Glamorgan
- Unnamed travel diarist, (fl 1916-1918) England;Wales
- Vaughan, Arthur Owen, (1863-1919), Welsh adventurer and author as Owen Rhoscomyl
- Vaughan, Herbert M. , (fl1851-1852), Captain, 90th Light Infantry
- Vaughan, Hilda, (1892-1985), novelist
- Vaughan, Sir John, (c 1731-1795), Knight Lieutenant General Colonial Governor
- Vaughan, John Francis, (1808-1878), Roman Catholic
- Vaughan, Robert Powell, (?1592-1667), Welsh antiquary, collector of the Hengwrt MSS
- Vaughan, Sir Robert Williames, (1803-1859), 3rd Baronet
- Vaughan, Wilmot, (c 1730-1800), 1st Earl of Lisburne
- Vaughan-Davies, Matthew Lewis, (1840-1935), Baron Ystwyth
- Vaughan-Thomas, Wynford, (1908-1987), Writer and Broadcaster
- Venables, George Stovin, (1810-1888), Journalist
- Venables, Richard, (1775-1859), Archdeacon of Carmarthen
- Venables, Richard Lister, (1809-1894), Vicar of Clyro Traveller
- Victoria, (1819-1901), Queen of Great Britain and Ireland
- Villiers, George, (1628-1687), 2nd Duke of Buckingham, statesman
- Vincent, Henry James, (1799-1865), Vicar of St Dogmaels Antiquary
- Vincentelli, Moira Morven, (fl 1971-2018), artist, lecturer, curator and writer Aberystwyth, Cardiganshire
- Vivian, Sir Arthur Pendarves, (1834-1926), Knight politician
- Vivian, Henry Hussey, (1821-1894), 1st Baron Swansea, politician
- Vivian, John Henry, (1785-1855), MP for Swansea
- Vivian, Odo Richard, (1875-1934), 3rd Baron Swansea
- Vivian, Richard Hussey, (1775-1842), 1st Baron Vivian, General
- Waddell, Helen, (1889-1965), historian and author
- Wain, John Barrington, (1925-1994), novelist, poet, literary critic
- Walker, Sir Edward, (1612-1677), Knight, Garter King of Arms
- Walker, Hugh, (1855-1939), Professor of English Literature Lampeter
- Walsh, Arthur, (1827-1920), 2nd Baron Ormathwaite
- Walsh, John, (1726-1795), Secretary to Lord Clive, naturalist
- Walsh, John Benn, (1798-1881), 1st Baron Ormathwaite, politician
- Walsham, Sir John James, (1805-1874), 1st baronet, poor law inspector
- Walters, John, (1721-1797), Lexicographer
- Walters, John, (1759-1789), Poet and Headmaster of Ruthin School
- Walton, Charles Livesey, (1883-1954), Entomologist
- Ward, John Powell, (b 1937), poet and critic
- Wardrop, James, (1905-1957), Controller of the Gregynog Press
- Warner, Sir George Frederic, (1845-1936), Knight Palaeographer and Scholar
- Warren-Bulkeley, Thomas James, (1752-1822), 7th Viscount Bulkeley
- Watkin, Morgan, (1878-1970), philologist and literary historian
- Watkins, Sir Percy, (1871-1946), Knight Educationalist
- Watkins, Tudor Elwyn, (1903-1983), Baron Watkins, politician
- Watkins, Vernon Phillips, (1906-1967), poet and writer
- Watt, James, (1769-1848), Engineer
- Webb, Harri, (1920-1994), poet
- Webb, Martha Beatrice, (1858-1943), social reformer
- Webb, Sidney James, (1859-1947), Baron Passfield, statesman
- Welby, Sir Reginald Earle, (1832-1915), 1st Baron Welby, civil servant
- Weld-Forester, John George, (1801-1874), 2nd Baron Forester
- Weld-Forester, Katherine Mary, (1779-1829), Baroness Forester
- Welensky, Sir Roy Raphael, (1907-1991), Knight Rhodesian statesman
- Wellesley, Arthur, (1769-1852), 1st Duke of Wellington, Field Marshal, statesman
- Wellesley, Richard Colley, (1760-1842), Marquess Wellesley, statesman
- Wentworth-Fitzwilliam, William, (1748-1833), 4th Earl Fitzwilliam, statesman
- Wesley, Charles, (1707-1788), Methodist, hymn writer
- Wesley, John, (1703-1791), Evangelist and Leader of Methodism Epworth, Lincolnshire
- Weston, Jessie Laidlaw, (d 1928), Arthurian Scholar
- Whaite, Henry Clarence, (1828-1912), Painter
- Whately, Richard, (1787-1863), Archbishop of Dublin
- Wheatley, John, (fl 1803-1829), Economist
- Wheatley, Joseph Larke, (1846-1932), solicitor JP Cardiff town clerk
- Wheeler, Dame Olive Annie, (d 1963), Professor Emeritus of University of Wales
- Wheldon, Thomas Jones, (1841-1916), Calvinistic Methodist minister
- Wheldon, Sir Wynn Powell, (1879-1961), Knight, civil servant
- Whistler, Laurence, (1912-2000), Engraver On Glass and Writer
- Whistler, Peggy Eileen Arabella, (1909-1958), novelist, poet and artist
- White, Eirene Lloyd, (1909-1999), Baroness White of Rhymney, politician
- White, Philip Jacob, (d 1929), zoologist
- Whitley, Roger, (c1617-1697), Royalist, Deputy Postmaster General and MP
- Wigley, Dafydd, (b 1943), Plaid Cymru MP
- Wilbraham, Anne, (d 1864), daughter of 1st Earl Fortescue
- Wilbraham, George, (1779-1852), MP
- Wiliam, Urien, (1929-2006), writer and dramatist
- Wilkinson, Sir John Gardner, (1797-1875), Knight, explorer and Egyptologist
- Wilks, Ivor G, (1928-2014), historian
- William, Thomas, (1717-1765), Independent Minister
- William-Ellis, Cecily, (1899-1992), environmental campaigner
- Williams, Alun Llywelyn-, (b 1913), poet and critic
- Williams, Anthony, (1845-1913), Baptist minister
- Williams, Arthur John, (1830-1911), MP and founder of the National Liberal Club
- Williams, Benjamin, (1821-1891), clergyman, antiquary, author and poet Llanover, Monmouthshire
- Williams, Charles, (1807-1877), Principal, Jesus College, Oxford
- Williams, Sir Charles Hanbury, (1708-1759), Knight, satirical writer and diplomat
- Williams, David, (1738-1816), philosopher and deist
- Williams, David, (1752-1819), Colonel
- Williams, David, (1799-1869), solicitor and MP
- Williams, David, (1877-1927), Calvinistic Methodist minister and biblical scholar
- Williams, David, (1900-1978), historian
- Williams, David Gwyn, (1904-1990), Welsh poet and translator Port Talbot, Glamorgan
- Williams, David James, (1870-1951), headmaster of Bethesda County School
- Williams, David John, (1885-1970), Welsh schoolmaster and writer
- Williams, David John, (1896-1950), local historian and children's writer
- Williams, David Pryse, (1878-1952), Baptist minister and local historian
- Williams, David Rees Rees-, (1903-1976), Baron Ogmore
- Williams, E Roberts, (1883-1952), Welsh settler in Patagonia
- Williams, Ebenezer John, (1851-1938), Calvinistic Methodist minister
- Williams, Edward, (1746-1826), antiquary and poet
- Williams, Edward Jones, (c 1858-1932), geologist and railway engineer
- Williams, Eliezer, (1754-1820), vicar, historian and genealogist Lampeter, Cardiganshire
- Williams, Eliseus, (1867-1926), Welsh poet
- Williams, Evan, (1866-1937), poet
- Williams, George Emlyn, (1905-1987), playwright and actor
- Williams, Grace, (1906-1977), composer
- Williams, Griffith, (? 1589-1672), Bishop of Ossory
- Williams, Griffith John, (1892-1963), literary historian and Welsh scholar
- Williams, Gwyn Alfred, (1925-1996), historian
- Williams, Henry Parry-, (1858-1925), scholar
- Williams, Herbert Lloyd, (b 1932), author and poet
- Williams, Hugh, (1796-1874), solicitor and political agitator
- Williams, Hugh, (1843-1911), Ecclesiastical historian
- Williams, Hugh Cernyw, (1843-1937), President of the Welsh Baptist Union
- Williams, Hugh Menai, (1888-1961), poet
- Williams, Idris Elgina, (1918-1992), artist and journalist
- Williams, Iolo Aneurin, (1890-1962), writer
- Williams, Isaac, (fl 1764-1803), Welsh clergyman
- Williams, Isaac Lloyd, (fl 1790-1848), lawyer
- Williams, Jac Lewis, (1918-1977), scholar and short story writer
- Williams, James, (1812-1893), Calvinistic Methodist missionary
- Williams, Sir James Hamlyn, (1790-1861), 3rd Baronet, MP
- Williams, Jane, (1806-1885), Welsh writer and historian Chelsea, Middlesex;Newtown, Montgomeryshire
- Williams, John, (1700-1787), Chief Justice of Brecknock
- Williams, John, (1728-1806), hymn writer
- Williams, John, (1792-1858), Archdeacon of Cardigan, classical scholar and historian
- Williams, John, (1806-1856), Baptist minister
- Williams, John, (1811-1862), Rector of Llanenddwyn, editor and antiquary
- Williams, John, (d 1898), New British Iron Co manager Ruabon, Denbighshire
- Williams, Sir John, (1840-1926), Baronet, obstetrician and MSS collector
- Williams, John, (1854-1921), Calvinistic Methodist minister Brynsiencyn, Anglesey
- Williams, Sir John Bickerton, (1792-1855), Knight, Nonconformist
- Williams, John Ceulanydd, (? 1847-1899), Baptist Minister, writer and poet as Ceulanydd
- Williams, John Edwin Stuart, (b 1920), Poet
- Williams, John Ellis, (1901-1975), author and playwright
- Williams, John Ellis Caerwyn, (1912-1999), scholar and editor
- Williams, John Glyndyrus, (1874-1955), Composer
- Williams, John Haulfryn, (1908-1980), Secretary of Cymmrodorion Society
- Williams, John Hughes, (1796-1868), Rector of Llangadwaladr
- Williams, John Lloyd, (1854-1945), botanist and collector of Welsh folk songs
- Williams, John Lloyd, (1892-1982), MP for Kelvingrove, journalist
- Williams, John Owen, (1853-1932), poet
- Williams, John Owen, (1892-1973), writer and broadcaster
- Williams, John Richard, (1867-1924), poet as Jr Tryfanwy
- Williams, John Rufus, (1833-1877), Baptist Minister and Author
- Williams, Juilian , (fl1990)
- Williams, Kyffin, (1918-2006), Painter
- Williams, L Eirlys, (fl 1933-1978), editor
- Williams, Lucy, (fl 1938-1954), Local Historian
- Williams, Marion Warren, (1912-1991), genealogical researcher
- Williams, Mary, (1882-1977), Professor of French Language and Literature
- Williams, Morgan Henry, (c1868-1960), Welsh broadcaster
- Williams, Morris, (1809-1874), Nicander Poet and Clergyman
- Williams, Owen, (1790-1874), Welsh antiquary
- Williams, Owen Gaianydd, (1865-1928), Calvinistic Methodist minister, historian
- Williams, Peter Bailey, (1763-1863), Rector of Llanrug Antiquary
- Williams, Raymond Henry, (1921-1988), Historian Critic and Novelist
- Williams, Rhydwen, (1916-1997), Poet, Novelist and Minister
- Williams, Rhys, (1841-1867), Welsh Poet as Manod Wyllt
- Williams, Richard, (1802-1842), Calvinistic Methodist Minister, author
- Williams, Richard, (fl 1817), Surgeon
- Williams, Richard, (1835-1906), Antiquary and Lawyer
- Williams, Richard Bryn, (1902-1981), Welsh historian and poet
- Williams, Richard Ellis, (1862-1926), Baptist minister
- Williams, Robert, (1810-1881), Vicar of Llangadwaladr, Welsh biographer, antiquary
- Williams, Robert Arthur, (1855-1926), Vicar of Betws Garmon, poet as Berw
- Williams, Robin, (1923-2003), broadcaster and author Rhoslan, Caernarfonshire;Gwynfryn, Caernarfonshire;Dinmael, Denbighshire;Corwen, Merionethshire
- Williams, Rowland, (1817-1870), Vice Principal of St David's College Lampeter
- Williams, Rowland, (1823-1905), Poet as Hwfa Mon and Archdruid of Wales
- Williams, Stephen William, (1837-1899), engineer, architect, archaeologist and antiquary
- Williams, Taliesin, (1787-1847), Welsh antiquary, author and poet as Taleisin ab Iolo
- Williams, Thomas, (1737-1802), MP, solicitor, copper, entrepreneur
- Williams, Thomas, (1890-1974), Director Council of Social Services for Wales
- Williams, Thomas Charles, (1868-1927), Calvinistic Methodist minister
- Williams, Sir Thomas Marchant, (1845-1914), Knight, judge, President of Welsh Language Society
- Williams, Waldo, (1904-1971), Poet
- Williams, Watkin Hezekiah, (1844-1905), Teacher and Poet as Watcyn Wyn
- Williams, William, (c 1625-1684), Vicar of Rhuddlan, antiquary
- Williams, Sir William, (1634-1700), 1st Baronet, Speaker of House of Commons and Solicitor General
- Williams, Sir William, (d1740), 2nd Baronet, MP for Denbigh
- Williams, William, (1739-1817), author and antiquary
- Williams, William, (1768-1836), Welsh poet and hymn-writer
- Williams, William, (1788-1865), MP
- Williams, William, (1801-1869), Congregational minister, critic and poet
- Williams, William, (1801-1876), poet and hymn writer
- Williams, William, (d 1930), Dean of St Davids
- Williams, William, (fl 1874-1896), Baptist missionary at San Fernando, Trinidad
- Williams, William Crwys, (1875-1968), Congregational minister and poet
- Williams, Sir William Emrys, (1896-1977), Knight, Secretary General of the Arts Council
- Williams, William John, (1878-1952), educationalist
- Williams, William Llewelyn, (1867-1922), Liberal MP, barrister and author
- Williams, William Wynn, (c 1797-1882), Rector of Llangeinwen with Llangaffo
- Williams-Ellis, Amabel, (1894-1984), literary editor of the Spectator
- Willis, Browne, (1682-1760), antiquary and numismatist
- Wilson, Sir Horace John, (1882-1972), Knight, civil servant
- Wilson, James Harold, (1916-1995), Baron Wilson of Rievaulx, statesman
- Wilson, Sir James Steuart, (1889-1966), Knight, Head of Music BBC
- Wolff, Joseph, (1795-1862), missionary and traveller
- Wood, Thomas, (1777-1860), MP for Brecon
- Woodhouse, James, (1735-1820), Poet
- Woolley, Geoffrey Downing, (1915-2010), journalist
- Workington, Angelina , (1867)
- Wotton, William, (1666-1727), Scholar
- Wrigley, Arthur William, (1907-1980), author Oldham, Lancashire
- Wrottesley, Julia, (c1781-1860), Baroness Wrottesley
- Wyndham-Quin, Windham Henry, (1782-1850), 2nd Earl of Dunraven
- Wynn, Charles Watkin Williams, (1775-1850), statesman
- Wynn Edward, John, (d 1614), Sheriff of Anglesey
- Wynn, Sir Henry Watkin Williams, (1783-1856), Knight Diplomat
- Wynn, Herbert Watkin Williams, (1822-1862), MP
- Wynn, Sir John, (1553-1626), 1st Baronet MP Antiquary
- Wynn, John, (1617-1669), Barrister
- Wynn, Maria Stella Petronilla, (1773-1843), actor
- Wynn, Sir Richard, (d 1649), 1st Baronet Treasurer to Queen Henrietta
- Wynn, Spencer Bulkeley, (1803-1888), 3rd Baron Newborough
- Wynn, Thomas, (1736-1807), 1st Baron Newborough
- Wynn, Sir Watkin Williams, (1692-1749), 3rd Baronet MP for Denbighshire
- Wynn, Sir Watkin Williams, (1749-1789), 4th Baronet
- Wynn, Sir Watkin Williams, (1772-1840), 5th Baronet MP
- Wynn, Sir Watkin Williams, (1820-1885), 6th Baronet MP
- Wynne, Edward, (d 1755), Chancellor of Hereford Diocese
- Wynne Finch, John Charles, (1891-1982), Lieutenant Colonel, Coldstream Guards
- Wynne Finch, Sir William Heneage, (1893-1961), Colonel, Scots Guards
- Wynne, William Robert Maurice, (1840-1909), MP for Merionethshire
- Wynne, William Watkin Edward, (1801-1880), Welsh Antiquary
- Wynne-Finch, Charles Griffith, (1815-1874), MP
- Yonge, Sir George, (1731-1812), 5th Baronet, politician and colonial governor
- Young, Sir George, (1837-1930), Knight Administrator and Essayist
- Younge, John Cole, (c 1786-1852), Rector of Walesby Lincs
- Zimmern, Sir Alfred Eckhard, (1879-1957), Knight Political Scientist
Diaries (120)
- Baker, Elizabeth, (c 1720-1799), journal writer Dolgelly, Merionethshire
- Baker, Mrs Elizabeth Dolgelly, Merionethshire
- Barritt, Thomas, (1775-1800), Jamaica Plantation Attorney Jamaica
- Billson, Edgar Westmorland;Yorkshire and the Humber
- Billson, Mabel Westmorland;Yorkshire and the Humber
- Billson, Theodora Westmorland;Yorkshire and the Humber
- Boumphrey, Joseph Liverpool, Lancashire
- Bradford, Edward Chapman, (fl 1823-1824), Trinity House Somerset;Cornwall;Devon;Devon;Somerset;Cornwall
- Brown, Leonard Joseph, (c1892-1949), hill walker Barmouth, Merionethshire
- Bulkeley, Robert, Gentleman Dronwy, Anglesey
- Bye, Robert, (fl 1917), soldier in the Welch Guards
- Clark, William Southern, (fl 1845-1858), mineral engineer Aberdare, Glamorgan
- Coleman, Thomas Wales
- Cooke, Philip Davies, (1793-1853), travel diarist France;Wales;Italy
- Cox, Gwladys London
- Davies, Daniel Owen, (b 1836), Vicar of Pontnewydd Pontnewydd, Monmouthshire
- Davies, David, (fl 1888-1893) Rhondda, Glamorgan
- Davies, David, (fl 1794-1848) Mynyddislwyn, Monmouthshire
- Davies, J G, (fl 1893), travel diarist United States of America
- Davies, J, (fl 1865-1866), travel diarist Twrgwyn, Cardiganshire
- Davies, Jonathan, (fl 1888-1903), slate merchant Porthmadog, Caernarfonshire
- Davies, Timothy, (fl 1711-1777), diarist Wales
- Davies, William, (fl 1860-1861), midshipman Pumpsaint, Carmarthenshire
- Durel, Daniel, Headmaster Cowbridge Grammar School Cowbridge, Glamorgan
- Edwards, Emyr, (fl 1973-2014), playwright, critic and chief examiner in drama, Welsh Joint Education Committee Wales
- Edwards, Jane, (d1892), Wife Of Lewis Edwards, Principal Of Bala College Bala, Merionethshire
- Ellis, Harriet Ellen Williams-, (c1809-1878), wife of Rev John Williams-Ellis Llangybi, Caernarfonshire
- Escott, John Laugharne, Carmarthenshire
- Evans, Dan, (fl 1914), Private, Royal Welsh Fusiliers
- Evans, Daniel, (fl 1863), curate Whitchurch, Glamorgan
- Evans, David Lewis, (1859-1893), engineer in Merchant Navy
- Evans, Horatio Peter Bowen, (1916-1988), sailor Rhayader, Radnorshire
- Evans, Mali, (fl 1965-1975), travel diarist Argentina;United States of America
- Evans, Mrs John, (fl 1887), travel diarist Eglwysbach, Denbighshire;United States of America
- Evans, Owen, (fl 1934-1973), Welsh Calvinistic Methodist preacher Liverpool, Lancashire
- Ffoulkes, Thomas Mertyn, Flintshire;Holywell, Flintshire
- Fortt, William J, Miners Agent At Pontypridd Cilfynydd, Glamorgan
- Fothergill, Elizabeth, Quaker York, Yorkshire
- Game, Aaron Great Oakley, Essex
- George, David John, (1885-1972) Trefgarn, Pembrokeshire;Castlemorris, Pembrokeshire;Fishguard, Pembrokeshire
- Griffith, Hugh Brynodol, Caernarfonshire
- Griffith, John, (fl 1863-1864), traveller to New Zealand London;New Zealand
- Griffith, Robert, (fl1776-1789), Vicar Of Darowen Darowen, Montgomeryshire
- Gylys, Dr, Physician Or Apothecary
- Hastings, Thomas, (fl1803-1806), Captain, 22nd Light Dragoons India
- Hutchinson, John N, (fl 1966-1967), Emeritus Professor of Engineering
- James, John Jones, (fl 1751-1789), sailor Rhayader, Radnorshire
- Jenkin, Evan, (fl 1782-1802), Churchwarden and Overseer of the Poor Mynyddislwyn, Monmouthshire
- Jones, Allan K Australia
- Jones, Goronwy R, Miners'agent At Pontypridd Ynysybwl, Glamorgan
- Jones, J D, Clergyman Liverpool, Lancashire
- Jones, John, (fl1597-99) Gellilyvdy, Flintshire
- Jones, John, Carpenter Devil's Bridge, Cardiganshire
- Jones, John, Vicar Darrington, Yorkshire
- Jones, Lizzie Devil's Bridge, Cardiganshire
- Jones, Thomas, (fl 1943-1961), Professor of Welsh, Aberystwyth University
- Jones, Thomas, (fl 1897-1901), student, University of Glasgow
- Langton, George Langton, Lincolnshire
- Lee, Godfrey, Plaid Cymru Parliamentary Candidate Newport, Monmouthshire;Welshpool, Montgomeryshire
- Leighton, Baldwin, (fl 1829-1830), Knight Tripoli, Libya;Naples, Italy
- Lewis, Edward M Aberhosan, Montgomeryshire
- Mendus, Enoch Lewis, Calvinistic Methodist Minister India;Malta
- Mendus, Gwenllian M, Calvinistic Methodist Missionary India;South Africa
- Morgan, Rees, (fl 1692-1742), yeoman Glyncorrwg, Glamorgan
- Morris, George Wiveliscombe, Somerset
- Nethercoat, William, (fl1812) Wales;Ireland
- New, Charles H Wales
- Owen, Ann, Farmer's Wife Roch, Pembrokeshire
- Owen, William, (1717-1747), Smuggler Carmarthen, Carmarthenshire
- Owsley, Samuel Brecon, Brecknockshire
- Parry, Owen, Nephew Of William Parry, Minister Amlwch, Anglesey
- Parry, Robert, (fl 1559-1613), diarist Eriviat, Denbighshire
- Phillips, Frank, (d1922) Zimbabwe;Burma
- Phillips, William, Clergyman London
- Poulgrain, Nesta Naples, Italy
- Powell, Catherine, (1788-1862), wife of Commander G E Powell, RN Colyton, Devon
- Powell, Walter, (1581-1656), steward to the Earl of Worcester Llantilio, Monmouthshire
- Pugh, William, (1750-1845), Curate Of Llanfair-juxta-harlech Llanfair juxta Harlech, Merionethshire
- Rees, Alfred Wellesley Swansea, Glamorgan
- Rees, B George, (fl 1939-1941), churchman, Workers Education Authority tutor Bridgend, Glamorgan
- Rees, Richard Machynlleth, Montgomeryshire
- Richard, David, Mining Surveyor Llangyfelach, Glamorgan
- Roberts, William, Sailor
- Robertson, Sarah
- Robertson, William, Doctor
- Robinson, Elizabeth Myfanwy Roch, Pembrokeshire
- Rogers, Rev J T, Minister Palestine
- Salusbury, John, (fl c1650), genealogist Erbistock, Denbighshire
- Smith, James, (fl 1698), cook Shropshire;Shropshire
- Smyth, Thomas, Vicar Chirk, Denbighshire
- Talbot, Anne Killarney, County Kerry
- Thomas, G Ivor, Local-historian New Quay, Cardiganshire
- Thomas, John, (1733-84), Methodist Tremain, Cardiganshire
- Thomas, Robert Llanfechain, Montgomeryshire
- Thomas, Thomas, Clergyman Kibworth Beauchamp, Leicestershire
- Thrasher, Frederick James, (b 1873), pioneer corps
- Trench, William, Founder Of The Skerries Lighthouse
- Troughton, Arthur, Grassland Researcher
- Unnamed female, (fl 1885), travel diarist Finistrere, France
- Unnamed male, (fl 1400), physician or apothecary
- Unnamed male, (fl 1700-1800), weather observer
- Unnamed, (fl 1757-1789), recorder of household inventory Erbistock, Denbighshire
- Unnamed, (fl 1600-1700), transcriber Cornwall;Cornwall
- Unnamed, (fl 1831-1840), travel diarist Westmorland;Derbyshire;Cumberland;Cumbria;Derbyshire
- Unnamed, (fl 1870), travel diarist Brussels, Belgium;Calais, France;Lille, France
- Unnamed, (fl 1827-1851), travel diarist England;Scotland
- Unnamed, (fl 1619-1620), travel diarist Crete, Greece;Naples, Italy;Rome, Italy;Istanbul, Turkey
- Unnamed, (fl 1791), travel diarist Wales;Birmingham, Warwickshire
- Vaughan, Howell, (fl 1600-1900), diarist Nannau, Merionethshire
- Warren, Edward, ( 1641) Wormington, Gloucestershire
- Welsh, Lady Margaret
- Williams, Griffith, (fl 1863-1877), emigrant Aberdaron, Caernarfonshire
- Williams, John, (fl 1740-1787), Attorney General of the Chester Circuit
- Williams, John, (fl1881-1885), Curate Of Llanrwst Llanrwst, Denbighshire
- Williams, Meryell Wales
- Williams, Morgan, Congregationalist Cefnarthen, Carmarthenshire;Pentretygwyn, Carmarthenshire;Tyncoed, Carmarthenshire
- Williams, Richard, Farmer Llanuwchllyn, Merionethshire
- Williams, Watkin William Pritchard, (fl 1889-1891), diarist
- Wynne, Madam Sidney Wales
- Wynne, Robert, (fl 1667) Maesyneuadd, Merionethshire
Families (431)
- Abadam family of Middleton Hall Middleton Hall, Carmarthenshire
- Abermarlais estate (Cornwallis, Maude, Thursby-Pelham, de Rutzen and Foley-Philipps families) Abermarlais, Carmarthenshire
- Addams-Williams family of Llangibby Castle Llangibby, Monmouthshire;Goytre, Monmouthshire;Usk, Monmouthshire
- Allen family of Cresselly Cresselly, Pembrokeshire
- Anwyl family of Chester and Pontypridd Pontypridd, Glamorgan
- Apperley and Speed families of Wrexham Wrexham, Denbighshire
- Ashburnham family, Earls of Ashburnham Ashburnham, Sussex;Ampthill, Bedfordshire;Clapham, Bedfordshire;Danbury, Essex;Blackheath, Kent;Greenwich, Kent;Bretherton, Lancashire;Chelsea, Middlesex;Westminster, Middlesex;Barking, Suffolk;Durnford, Wiltshire;Porthamel, Brecknockshire;Talgarth, Brecknockshire;Llanddeusant, Carmarthenshire;Pembrey, Carmarthenshire;Llangennith, Glamorgan
- Ashe family of Bristol Bristol, Gloucestershire;Ashgrove, County Limerick
- Bagot family, Barons Bagot Blithfield, Staffordshire;Bishops Tachbrook, Warwickshire;Bachymbyd, Denbighshire;Pool Park, Denbighshire;Rhug, Merionethshire;Rug, Merionethshire
- Bailey family, Barons Glanusk, of Glanusk Park Glanusk, Brecknockshire
- Baker-Gabb family of The Chain, Abergavenny The Chain, Monmouthshire
- Bamford-Hesketh family of Gwrych Castle Gwrych, Denbighshire
- Barlow family, baronets, of Slebech Slebech, Pembrokeshire
- Barnes family of Monmouth Monmouth, Monmouthshire
- Bayly family, baronets, of Plas Newydd Plas Newydd, Anglesey;Llanfair Pwllgwyngyll, Anglesey;Crobane, County Down;Galway, County Galway;Cooley, County Louth;Omeath, County Louth
- Bell Lloyd and Price Lloyd families of Bodfach Bodfach, Montgomeryshire
- Bevan family of Laugharne Laugharne, Carmarthenshire;Llangammarch, Brecknockshire
- Beynon and Protheroe-Beynon families of Trewern Trewern, Pembrokeshire
- Blacker-Morgan family County Down
- Bonsall family of Fronfraith Fronfraith, Cardiganshire;Galltyllan, Montgomeryshire
- Bosanquet family of Dingestow Dingestow, Monmouthshire
- Bowen family of Llandyad Meline, Pembrokeshire
- Bowen family of Llwyngwair Llwyngwair, Pembrokeshire
- Bowen family of Llwyngwair: Castell Gorfod estate Castell Gorfod, Carmarthenshire
- Bowen family of Pantyderi, Llanfair Nant-gwyn Llanfair Nant Gwyn, Pembrokeshire;Cardigan, Cardiganshire
- Bowers family of Eynsham Eynsham, Oxfordshire
- Bradney family of Talycoed Talycoed, Monmouthshire
- Brigstocke family of Blaenpant and Llechdwny Blaen-pant, Cardiganshire;Llechdwny, Carmarthenshire
- Brogden Family, ironmasters and railway builders Tondu, Glamorgan
- Brooks family of Noyadd Noyadd, Cardiganshire
- Browne family of Mellington Hall Mellington Hall, Montgomeryshire;Churchstoke, Montgomeryshire
- Buckley family of Castell Gorfod Castell Gorfod, Carmarthenshire
- Bulkeley family, Viscounts Bulkeley Anglesey;Gwynedd
- Burchinshaw family of Llansannan Llansannan, Denbighshire
- Campbell family, Earls Cawdor Islay, Argyllshire;Muckairn, Argyllshire;Ardersier, Inverness-shire;Campbelltown, Inverness-shire;Moy, Inverness-shire;Auldearn, Nairnshire;Cawdor, Nairnshire;Clunes, Nairnshire;Delnies, Nairnshire;Geddes, Nairnshire;Blaen-pant, Cardiganshire;Cellan, Cardiganshire;Llandifriog, Cardiganshire;Golden Grove, Carmarthenshire;Kidwelly, Carmarthenshire;Llandilo Fawr, Carmarthenshire;Llandebie, Carmarthenshire;Angle, Pembrokeshire;Castlemartin, Pembrokeshire;Stackpole Court, Pembrokeshire;Stackpole Elidor, Pembrokeshire;Slebech, Pembrokeshire;Wiston, Pembrokeshire;Shenfield, Essex
- Campbell-Davys family of Neuadd-fawr Neuadd-fawr, Carmarthenshire
- Carter family, Chepstow Chepstow, Monmouthshire
- Cavendish family, Dukes of Devonshire Latimer, Buckinghamshire;Carlisle, Cumberland;Castle Sowerby, Cumberland;Penrith, Cumberland;Ashford, Derbyshire;Baslow, Derbyshire;Birchover, Derbyshire;Buxton, Derbyshire;Chatsworth, Derbyshire;Hardwick, Derbyshire;Hartington, Derbyshire;High Peak, Derbyshire;Monsall Dale, Derbyshire;Pentrich, Derbyshire;Shottle, Derbyshire;Staveley, Derbyshire;Winster, Derbyshire;Sawtry, Huntingdonshire;Brindle, Lancashire;Cartmel Fell, Lancashire;Holker, Lancashire;Inskip, Lancashire;Muchland, Lancashire;Barrowby, Lincolnshire;London;Chiswick, Middlesex;Fotheringhay, Northamptonshire;Long Sutton, Somerset;Pitney, Somerset;Wearne, Somerset;Ecton, Staffordshire;Whiston, Staffordshire;Compton Place, Sussex;Eastbourne, Sussex;Polegate, Sussex;Wilmington, Sussex;Appletreewick, Yorkshire;Baldersby, Yorkshire;Bolton Abbey, Yorkshire;Dore, Yorkshire;Keighley, Yorkshire;Londesborough, Yorkshire;Market Weighton, Yorkshire;Skipton, Yorkshire;Staincliffe, Yorkshire;Wetherby, Yorkshire;Youghal, County Cork;Dungarvan, County Waterford;Lismore, County Waterford
- Charlton family of Park Park, Shropshire
- Chetwynd-Talbot family, Earls of Shrewsbury Burghfield, Berkshire;Shudy Camps, Cambridgeshire;Chester, Cheshire;Kinderton, Cheshire;Little Budworth, Cheshire;Little Neston, Cheshire;Oxton, Cheshire;Glossop, Derbyshire;Scropton, Derbyshire;Kilmington, Devon;Shobrooke, Devon;Boxted, Essex;Broadwell, Gloucestershire;Bromsberrow, Gloucestershire;Ledbury, Herefordshire;St Helens, Lancashire;Worksop, Nottinghamshire;Bampton, Oxfordshire;Chipping Norton, Oxfordshire;Heythrop, Oxfordshire;Hook Norton, Oxfordshire;Albrighton, Shropshire;Ford, Shropshire;Longford, Shropshire;Tasley, Shropshire;Alton, Staffordshire;Armitage, Staffordshire;Ashley, Staffordshire;Brereton, Staffordshire;Burntwood, Staffordshire;Cotton, Staffordshire;Ellaston, Staffordshire;Farley, Staffordshire;Haywood, Staffordshire;Hopton, Staffordshire;Ingestre, Staffordshire;Rugeley, Staffordshire;Seighford, Staffordshire;Stanton, Staffordshire;Dordon, Warwickshire;Grendon, Warwickshire;Ashton Gifford, Wiltshire;Cooksey, Worcestershire;Grafton, Worcestershire;Hanbury, Worcestershire;Huddington, Worcestershire;Salwarpe, Worcestershire;Sheffield, Yorkshire;Hensol, Glamorgan;Llantrisant, Glamorgan;Paviland, Glamorgan;Llanvihangel Crucorney, Monmouthshire
- Child-Villiers family, Earls of Jersey: Briton Ferry Briton Ferry, Glamorgan
- Child-Villiers family, Earls of Jersey: Middleton Park Middleton Stoney, Oxfordshire
- Clark family of Tal-y-Garn Talygarn, Glamorgan
- Clarke family of Brickendonbury Brickendonbury, Hertfordshire
- Cochrane family, Earls of Dundonald Gwrych, Denbighshire
- Coke family, Earls of Leicester Holkham, Norfolk;Flitcham, Norfolk;Kempstone, Norfolk;Weasenham, Norfolk;Hillesden, Buckinghamshire;Farnham Royal, Buckinghamshire;Durweston, Dorset;Kingsdown, Kent;Bevis Marks, London;Minster Lovell, Oxfordshire;Portbury, Somerset;Wherstead, Suffolk
- Colby family of Ffynone Ffynone, Pembrokeshire;Blaenporth, Cardiganshire;Kidwelly, Carmarthenshire;Pembrey, Carmarthenshire;Cilgerran, Pembrokeshire;Manordeifi, Pembrokeshire;Rhosygilwen, Pembrokeshire
- Corbet family of Ynys-y-maengwyn Ynys-y-maengwyn, Merionethshire;Towyn, Merionethshire
- Corbett family of Impney Impney, Worcestershire;Dodderhill, Worcestershire;Stoke Prior, Worcestershire;Towyn, Merionethshire;Ynys-y-maengwyn, Merionethshire
- Corbett family of Longnor, Shropshire and Montgomeryshire Longnor, Shropshire
- Cornewall family, baronets, of Moccas Court Moccas, Herefordshire
- Cornewall family, baronets, of Moccas, Herefs: Crookham Crookham, Berkshire
- Cornwallis-West family of Ruthin Castle Ruthin, Denbighshire;Milford-on-Sea, Hampshire;Chirk, Denbighshire
- Cowell-Stepney family, baronets, of Llanelli Llanelli, Carmarthenshire
- Crawshay family of Cyfarthfa Cyfarthfa, Glamorgan
- Crichton-Stuart family, Marquesses of Bute Auchinleck, Ayrshire;Dumfries House, Ayrshire;Ochiltree, Ayrshire;Old Cumnock, Ayrshire;Arran, Buteshire;Bute, Buteshire;Cumbrae, Buteshire;Mountstuart, Buteshire;Rothesay, Buteshire;Clackmannan, Clackmannanshire;Sanquhar, Dumfriesshire;Falkland, Fife;Falkland Palace, Fife;Edinburgh, Midlothian;Pluscarden, Moray;Ardwell, Wigtownshire;Kirkcowan, Wigtownshire;Kirkinner, Wigtownshire;Mochrum, Wigtownshire;Sorbie, Wigtownshire;Aberdare, Glamorgan;Caerphilly Castle, Glamorgan;Caerphilly, Glamorgan;Cardiff Castle, Glamorgan;Cardiff, Glamorgan;Castell Coch, Glamorgan;Eglwysilan, Glamorgan;Llanblethian, Glamorgan;Llantrisant, Glamorgan;Machen, Monmouthshire;Newport, Monmouthshire;Trelegg, Monmouthshire;Usk, Monmouthshire;Wentlooge St Bride, Monmouthshire;Luton, Bedfordshire;Luton Hoo, Bedfordshire;Kirtling, Cambridgeshire;Axwell, Durham;Tanfield, Durham;Winlaton, Durham;Hertfordshire;London;Middlesex;Kirknewton, Northumberland;Adderbury, Oxfordshire;Worcestershire
- Crosse family of Shaw Hill: Welsh estate Denbighshire;Clwyd
- Cunliffe family, baronets, of Acton Hall Acton, Denbighshire
- Davies and other families of Derlwyn, Llandysul Derlwyn, Cardiganshire
- Davies family of Ffrwdfal and Rhosybedw Ffrwdfal, Carmarthenshire
- Davies family of Froodvale, Carmarthen Froodvale, Carmarthenshire
- Davies Family of Llandinam and Newton Llandinam, Montgomeryshire
- Davies family of Llannerch Llannerch, Flintshire
- Davies family of Llwyn, Cardiganshire and Ffrwdfal and Rhosyhedw, Carmarthenshire Llwyn, Cardiganshire;Ffrwdfal, Carmarthenshire;Rhosyhedw, Carmarthenshire
- Davies family of Maes-mawr Hall, Llandinam Llandinam, Montgomeryshire
- Davies family of Pentre Pentre, Pembrokeshire;Williamston, Pembrokeshire;Llanon, Carmarthenshire
- Davies family of Trewylan, Llansantffraid Trewylan, Montgomeryshire
- Davies family of Tyglyn Tyglyn, Cardiganshire
- Davies Griffith (later Gough) family of Caerhun Caerhun, Caernarfonshire
- Davies-Cooke family of Owston and Gwysaney Owston, Yorkshire;Gwysaney, Flintshire;Hafod-y-wern, Denbighshire
- Davies-Evans family of Highmead, Cards and Penylan, Carms Highmead, Cardiganshire
- de Grey family, Barons Lucas Wrest Park, Bedfordshire;Blunham, Bedfordshire;Clophill, Bedfordshire;Harrold, Bedfordshire;Silsoe, Bedfordshire;West Woodyates, Dorset;Colchester, Essex;Fordham, Essex;Shenfield, Essex;Longhope, Gloucestershire;Goodrich, Herefordshire;Burbage, Leicestershire;Sketchley, Leicestershire;Worksop, Nottinghamshire;Crudwell, Wiltshire;Clifton, Yorkshire;Craven, Yorkshire;Sheffield, Yorkshire;Ruthin, Denbighshire
- de Rutzen family, Barons de Rutzen, of Slebech Slebech, Pembrokeshire
- Devereux family, Viscounts Hereford Tregoyd, Brecknockshire;Ashford Hall, Shropshire
- Dillwyn-Venables-Llewelyn family, baronets, of Penlle'rgaer and Llysdinam Penllergaer, Glamorgan;Llysdinam, Brecknockshire
- Dolforgan estate (Herbert, Long and Walton families) Dolforgan, Montgomeryshire
- Douglas-Pennant family, Barons Penrhyn Penrhyn, Caernarfonshire;Wicken, Northamptonshire;Winnington, Cheshire
- Downes Evans family, Wernllwyd, Welshpool Wernllwyd, Montgomeryshire
- Duff Gordon family, baronets, of Halkin, Ayrshire: Harpton Court Harpton, Radnorshire
- Dugdale family of Llwyn Llwyn, Montgomeryshire
- Edwardes family of Trefgarn, later of Strand House, Laugharne Trefgarn, Pembrokeshire;Laugharne, Pembrokeshire
- Edwardes family, Barons Kensington Carmarthenshire;Pembrokeshire;Cardiganshire;Dyfed
- Edwards and Morrall families of Cilhendre and Plas Yolyn, Dudleston Cilhendre, Merionethshire;Plas Yolyn, Shropshire
- Edwards family of Cerrigllwydion Cerrigllwydion, Merionethshire
- Edwards family of Nanhoron Nanhoron, Caernarfonshire
- Edwards family of Plas Newydd, Chirk Plas Newydd, Denbighshire
- Ellis and Williams families of Plas Brondanw Plas Brondanw, Merionethshire
- Ellis family of Aberystwyth Aberystwyth, Cardiganshire
- Evans family of Broom Hall Broom Hall, Caernarfonshire
- Evans family of Cwmbedw, Llannarth Cwmbedw, Cardiganshire
- Evans family of Fishguard Fishguard, Pembrokeshire
- Evans family of Henblas Henblas, Anglesey
- Evans family of Lovesgrove Lovesgrove, Cardiganshire
- Evans family of Neuaddfawr, Llanfihangel Llanfihangel-y-Creuddyn, Cardiganshire
- Evans family of Trefayog and Cilan-wen Trefayog, Pembrokeshire
- Fairlies-Humphreys family of Bank House Bank House, Montgomeryshire
- Feilding family, Earls of Denbigh Newnham Paddox, Warwickshire;Feering, Essex;Lutterworth, Leicestershire;Guilsborough, Northamptonshire;Monks Kirby, Warwickshire;Downing, Flintshire;Donaghmore, County Meath
- Ffoulkes family of Eriviat Hall Eriviat, Denbighshire
- Fitzwilliams family of Cilgwyn Cilgwyn, Cardiganshire
- Fitzwilliams family of Cilgwyn: Paddington estate Paddington, Middlesex
- Foley family of Ridgeway Ridgeway, Pembrokeshire
- Frankland-Payne-Gallwey families, baronets of Thirkleby Park Thirkleby, Yorkshire
- Gatacre family of Gatacre Gatacre, Shropshire
- George family of Penrallthywel Penrallthywel, Caernarfonshire
- Gethin family of Cernioge Cernioge, Denbighshire
- Gibb family Cardiganshire;Dyfed
- Gibbon family of Tremaenhire Whitechurch In Dewsland, Pembrokeshire
- Giffard and Fletcher families of Nercwys Hall (Nerquis Hall) Nercwys, Flintshire;Nerquis Hall, Flintshire
- Glynne family, baronets, and Gladstone family: Hawarden Hawarden, Flintshire
- Goldwyer family of Bristol and Salisbury Bristol, Gloucestershire;Salisbury, Wiltshire;Ashgrove, County Limerick
- Goodwyn family of Dorking Dorking, Surrey
- Goring-Thomas family of Gellywernen, formerly of Plas Llannon Plas Llannon, Carmarthenshire
- Gower family of Glandovan Glandovan, Pembrokeshire
- Green Price family, baronets, of Norton Norton, Radnorshire
- Green-Price family, baronets, of Monaughty: Gwernafel Gwernafel, Radnorshire
- Grey family, Earls of Kent Wrest Park, Bedfordshire;Blunham, Bedfordshire;Clophill, Bedfordshire;Harrold, Bedfordshire;Silsoe, Bedfordshire;Colchester, Essex;Fordham, Essex;Shenfield, Essex;Longhope, Gloucestershire;Eccleswall, Herefordshire;Goodrich, Herefordshire;Burbage, Leicestershire;Sketchley, Leicestershire;Worksop, Nottinghamshire;Crudwell, Wiltshire;Sheffield, Yorkshire;Ruthin, Denbighshire
- Griffin family of Dixton Hadnock Dixton Hadnock, Monmouthshire;Llandenny, Monmouthshire;Risca, Monmouthshire;Rockfield, Monmouthshire;Goodrich, Herefordshire;Llangarron, Herefordshire;Welsh Newton, Herefordshire;Whitchurch, Herefordshire;Mottistone, Isle of Wight
- Griffith family of Carreglwyd Carreglwyd, Anglesey
- Griffith family of Carreglwyd and Berw Berw, Anglesey
- Griffith family of Llanfair and Brynodol Llanfairfechan, Caernarfonshire;Brynodol, Caernarfonshire
- Griffith family of Penpompren Penpompren, Cardiganshire
- Griffith family Plasnewydd and Garn estates Plasnewydd, Denbighshire
- Griffiths and Lewis families of Glanhafren Glanhafren, Montgomeryshire
- Griffiths and Lewis families, Milford Hall, Newtown Milford Hall, Montgomeryshire
- Griffiths family of Alltyferin Allt-y-Ferin, Carmarthenshire
- Grosvenor family, Dukes of Westminster Eaton Hall, Cheshire;Cliveden, Buckinghamshire;West Wratting, Cambridgeshire;Eccleston, Cheshire;Gillingham, Dorset;Motcombe, Dorset;Stalbridge, Dorset;Moor Park, Hertfordshire;Wymondley, Hertfordshire;Westminster, Middlesex;Weeting, Norfolk;Swell, Somerset;Newmarket, Suffolk;Hascombe, Surrey;Park Hatch, Surrey;St Saens, France;Llanarmon Dyffryn Clwyd, Denbighshire;World's End, Denbighshire;Bagillt, Flintshire;Halkyn, Flintshire;Holywell, Flintshire;Fort William, Inverness-shire;Reay Forest, Sutherlandshire
- Gwynne family of Monachty Monachty, Cardiganshire
- Hall family of Llanover incl Baron Llanover and Herberts of Llanarth Llanover, Monmouthshire;Llanarth, Monmouthshire
- Hamer family of Glanyrafon: deeds and papers Glanyrafon, Shropshire
- Hampton-Lewis family of Henllys Henllys, Anglesey
- Hanbury Williams family of Coldbrook Park Coldbrook, Monmouthshire
- Hanbury-Tracy family, Barons Sudeley Toddington, Gloucestershire;Temple Guiting, Gloucestershire;Bridgnorth, Shropshire;Highley, Shropshire;Morville, Shropshire;Bettws, Montgomeryshire;Gregynog, Montgomeryshire;Tregynon, Montgomeryshire
- Hanmer family, baronets, of Hanmer and Bettisfield Park, Shropshire Hanmer, Flintshire;Bettisfield Park, Shropshire;Wigan, Lancashire
- Hardwick family of Weston under Penyard Weston-under-Penyard, Herefordshire
- Harford family, baronets, of Falcondale Falcondale, Cardiganshire;Blaise Castle, Gloucestershire;Henbury, Gloucestershire;Kingsweston, Gloucestershire;Westbury-on-Trym, Gloucestershire;Lampeter, Cardiganshire;Peterwell, Cardiganshire
- Harries family of Llandovery Llandovery, Carmarthenshire
- Harries family, Haverfordwest Haverfordwest, Pembrokeshire
- Harvey family of Rolls Park Rolls Park, Essex;Chigwell, Essex
- Havard family of Newport and Milford Newport, Pembrokeshire
- Heathcote-Drummond-Willoughby family, Earls of Ancaster Burghfield, Berkshire;Chesterfield, Derbyshire;Holbeton, Devon;Beckenham, Kent;Addlethorpe, Lincolnshire;Alford, Lincolnshire;Baston, Lincolnshire;Edenham, Lincolnshire;Eresby, Lincolnshire;Grimsthorpe, Lincolnshire;Ingoldmells, Lincolnshire;Langtoft, Lincolnshire;Partney, Lincolnshire;Spilsby, Lincolnshire;Winthorpe, Lincolnshire;London;Edgefield, Norfolk;Ewelme, Oxfordshire;Edith Weston, Rutland;Normanton, Rutland;Kingsbury, Warwickshire;Bettws-y-coed, Caernarfonshire;Gwydir Castle, Caernarfonshire;Llanrhychwyn, Caernarfonshire;Eglwys Fach, Denbighshire;Llanrwst, Denbighshire;Crogen, Merionethshire;Llandrillo, Merionethshire;Drummond Castle, Perthshire
- Heaton family of Plas Heaton Plas Heaton, Denbighshire
- Herbert family of Castle Island Castle Island, County Kerry
- Herbert family of Cogan Pil Cogan Pill, Glamorgan
- Herbert family of Dolforgan Dolforgan, Montgomeryshire;Park, Montgomeryshire
- Herbert family of Llanarth Llanarth, Monmouthshire
- Herbert family of Swansea Swansea, Glamorgan
- Herbert family, Barons Herbert of Chirbury Chirbury, Shropshire;Ribbesford, Worcestershire;Anglesey;Caernarfonshire;St Julians, Monmouthshire;Montgomery, Montgomeryshire;Castle Island, County Kerry
- Herbert family, Earls of Pembroke Wilton, Wiltshire;Chalbury, Dorset;Shaftesbury, Dorset;London;Abdon, Shropshire;Diddlebury, Shropshire;Chedzoy, Somerset;Dunster, Somerset;Alvediston, Wiltshire;Broad Chalke, Wiltshire;Fovant, Wiltshire;Grovely Wood, Wiltshire;Wylye, Wiltshire;Cardiff, Glamorgan;Cowbridge, Glamorgan;Kenfig, Glamorgan;Caerleon, Monmouthshire;Newport, Monmouthshire;Dublin, County Dublin
- Herbert family, Earls of Powis Anglesey;Llanengan, Caernarfonshire;Eglwys Newydd, Cardiganshire;Esgair Mwyn, Cardiganshire;Nash, Monmouthshire;St Julians, Monmouthshire;Trelleck, Monmouthshire;Usk, Monmouthshire;Berriew, Montgomeryshire;Cydewain, Montgomeryshire;Guilsfield, Montgomeryshire;Llanfyllin, Montgomeryshire;Lymore, Montgomeryshire;Mathraval, Montgomeryshire;Montgomeryshire, Montgomeryshire;Newtown, Montgomeryshire;Powis Castle, Montgomeryshire;Beguildy, Radnorshire;Cefnllys, Radnorshire;Presteigne, Radnorshire;Okehampton, Devon;Crayford, Kent;Hendon, Middlesex;Westminster, Middlesex;Heyford, Northamptonshire;Bishop's Castle, Shropshire;Bromfield, Shropshire;Caus, Shropshire;Chirbury, Shropshire;Clun, Shropshire;Ludlow, Shropshire;Lydbury North, Shropshire;Montford, Shropshire;Oakly Park, Shropshire;Oswestry, Shropshire;Styche Hall, Shropshire;Walcot Park, Shropshire;Claremont, Surrey;Ribbesford, Worcestershire;Castle Island, County Kerry
- Hervey family of Bodfel Hall Bodfel, Caernarfonshire
- Holland family of Berw Berw, Anglesey
- Holland family of Pennant, Eglwys-bach Pennant, Denbighshire
- Hoskyns family, baronets, of Harewood Harewood, Herefordshire;Hentland, Herefordshire;Llandinabo, Herefordshire
- Howard family of Wigfair Wigfair, Denbighshire
- Howell family of Glaspant Glaspant, Carmarthenshire
- Howell Family of Maesgwynne Llanboidy, Carmarthenshire;Pembrokeshire
- Hughes family of Gogarth, Tywyn Gogarth, Merionethshire
- Hughes family of Hendrefelen Yspitty, Cardiganshire
- Humffreys family of Llwyn Llwyn, Montgomeryshire
- Humphreys family of Brithdir Hall Brithdir, Montgomeryshire
- Hurst and Wood families of Gabalfa Gabalfa, Glamorgan
- Irby family, Barons Boston Llanidan, Anglesey;Lligwy, Anglesey;Bangor, Caernarfonshire;Hedsor, Buckinghamshire;Hitcham, Buckinghamshire;Wooburn, Buckinghamshire;Greywell, Hampshire;Moulton, Lincolnshire;Scothern, Lincolnshire;Spalding, Lincolnshire;Hillingdon, Middlesex;Cogenhoe, Northamptonshire;Whiston, Northamptonshire;Barston, Warwickshire;Foleshill, Warwickshire
- James family of Llandegreth Llandegreth, Monmouthshire
- James family of Tynyrhos Tynyrhos, Cardiganshire
- James, Williams and Evans families of Penralley Penralley, Radnorshire
- Jeffreys family of Cynghordy Cynghordy, Carmarthenshire
- Jenkins family of Cilbronnau Cilbronnau, Cardiganshire
- John and Thomas families of Trehale St Edrins, Pembrokeshire
- Johnes family of Berriew Berriew, Montgomeryshire
- Jones and Harrison families of Llantysilio, LlanlodianCaerinion Llanlodian, Montgomeryshire;Llantysilio, Denbighshire
- Jones family of Black Hall, Kerry Kerry, Montgomeryshire
- Jones family of Broom Hall: Westminster estate Westminster, Middlesex
- Jones family of Derry Ormond Derry Ormond, Cardiganshire
- Jones family of Dol-coed Dol-coed, Brecknockshire
- Jones family of Glan-bran (Glanbrane) Glanbran, Carmarthenshire
- Jones family of Gwynfryn Taliesin, Cardiganshire
- Jones family of Henblas Henblas, Montgomeryshire
- Jones family of Llanarth Llanarth, Monmouthshire
- Jones family of Pen y Bryn Pen-y-bryn, Denbighshire
- Jones family of Ynysfor Ynysfor, Merionethshire
- Jones family of Ystrad Ystrad, Carmarthenshire
- Jones family, Bryn-y-ffynnon, Wrexham Wrexham, Denbighshire
- Jones-Bateman family of Pentre Mawr, Abergele Pentre Mawr, Denbighshire
- Jones-Davies family of Glyneiddan Llanegwad, Carmarthenshire
- Jones-Lewis family of Llwyncelyn Llwyncelyn, Cardiganshire
- Kemeys-Tynte family of Cefn Mabli Cefn Mabli, Glamorgan;Monmouthshire
- Kenrick family of Woore: Nantclwyd estate Nantclwyd, Denbighshire
- Kerr family of Maesmor Maesmor, Denbighshire
- Knight family of Glamorgan Glamorgan
- Kynaston family of Hardwick Hardwick, Shropshire
- la Warre family, Swineshead in Holland Swineshead In Holland, Lincolnshire
- Le Heup family of Gunthorpe Gunthorpe, Norfolk
- Leach family of Corston and Ivy Tower Corston, Pembrokeshire
- Lee family of Dinas Powis Dinas Powis, Glamorgan
- Leighton family of Sweeney Hall Sweeney Hall, Shropshire
- Lewes family of Gellydywyll Gellydywyll, Carmarthenshire
- Lewes family of Llanllyr Llanllyr, Cardiganshire
- Lewes family of Llysnewydd and Dyffryn Llysnewydd, Carmarthenshire
- Lewis family of Chwaen Chwaen, Anglesey
- Lewis family of Clynfiew Clynfiew, Pembrokeshire
- Lewis family of Harpton Court Harpton, Radnorshire
- Lewis family of Llanerch Aeron (Llanaeron estate) Llanerch Aeron, Cardiganshire
- Lewis family of Llanfihangel Tre'r beirdd Llanfihangel, Anglesey
- Lewis family of Llwyngrawys, Llangoedmor (and of Clynfien) Llwyngrawys, Cardiganshire
- Lewis family of Lwyngwern Llwyngwern, Merionethshire
- Lewis family of St Pierre St Pierre, Monmouthshire
- Lewis family, Barons Merthyr, Hean Castle estate Hean Castle, Pembrokeshire
- Leyland and Naylor families, Brynllywarch and Leighton Hall Brynllywarch, Montgomeryshire
- Lloyd (later Hall) family of Cilgwyn Cilgwyn, Cardiganshire
- Lloyd and Fitzhugh families of Plas Power Plas Power, Denbighshire
- Lloyd and Lloyd Philipps family of Maburs estate Maburs, Cardiganshire
- Lloyd family of Abercynrig Abercynrig, Brecknockshire
- Lloyd family of Alltyrodin Alltyrodin, Cardiganshire
- Lloyd family of Aston Hall Aston Hall, Shropshire
- Lloyd family of Brunant (Briwnant) Brunant, Carmarthenshire
- Lloyd family of Cefn, St Asaph (Plas-yn-Cefn) Cefn, Flintshire;Plas-yn-cefn, Flintshire
- Lloyd family of Ciston Hall, Salop: Foxhall Foxhall, Denbighshire
- Lloyd family of Coedmor Coedmor, Cardiganshire
- Lloyd family of Dan-yr-Allt Dan-yr-allt, Carmarthenshire
- Lloyd family of Dinas Dinas, Brecknockshire
- Lloyd family of Dolobran Dolobran, Montgomeryshire
- Lloyd family of Ffosybleiddiad and Mabws Ffosybleiddiad, Cardiganshire
- Lloyd family of Glansevin Glansevin, Carmarthenshire
- Lloyd family of Gwmlannerch, Betws-y-Coed Gwmlannerch, Caernarfonshire
- Lloyd family of Hafodunos and Wigfair Hafodunos, Denbighshire;Wigfair, Denbighshire
- Lloyd family of Halghton Halghton, Flintshire
- Lloyd family of Montgomery Montgomery, Montgomeryshire
- Lloyd family of Pengwern Pengwern, Flintshire
- Lloyd family of Penty Park Penty Park, Pembrokeshire
- Lloyd family of Plas Cilybebyll Plas Cilybebyll, Glamorgan
- Lloyd family of Plas Trefaldwyn and Castell Forwyn, Abermule Plas Trefaldwyn, Montgomeryshire
- Lloyd family of Rhagatt (Rhagad) Rhagatt, Merionethshire;Rhagad, Merionethshire
- Lloyd family of Trefnant Trefnant, Denbighshire
- Lloyd family of Ty Mawr, Abergele Abergele, Denbighshire
- Lloyd family, baronets, of Bronwydd Bronwydd, Cardiganshire
- Lloyd, Humphreys and Lloyd-Humphreys families of Forden and Chirbury Forden, Montgomeryshire
- Lloyd-Johnes family of Dolaucothi, Carms, and Hafod, Cards Hafod, Cardiganshire;Dolaucothi, Carmarthenshire
- Lloyd-Mostyn family, Barons Mostyn Tre Castell, Anglesey;Bodysgallen, Caernarfonshire;Edern, Caernarfonshire;Llandudno, Caernarfonshire;Llanrwst, Denbighshire;Llansannan, Denbighshire;Ruthin, Denbighshire;Bodfari, Flintshire;Caerwys, Flintshire;Mold, Flintshire;Mostyn, Flintshire;Pengwern, Flintshire;St Asaph, Flintshire;Whitford, Flintshire;Corsygedol, Merionethshire;Corwen, Merionethshire;Llandanwg, Merionethshire;Llanfair, Merionethshire;Llanfawr, Merionethshire;Nannau, Merionethshire;Berthlwyd, Montgomeryshire;Bodfach, Montgomeryshire;Churchstoke, Montgomeryshire;Llandyssil, Montgomeryshire;Llanfyllin, Montgomeryshire;Llanidloes, Montgomeryshire;Llanbister, Radnorshire;Llandegley, Radnorshire;Presteigne, Radnorshire;Beeston, Cheshire;Great Neston, Cheshire;Peckforton, Cheshire;Thornton Hough, Cheshire;Liverpool, Lancashire;London
- Lloyd-Williams family of Gwernant Park or Alderbrook Hall Gwernand, Cardiganshire
- Lockwood family of Bishops Hall, Lambourne, Essex Lockwood, Monmouthshire
- Lockwood family of Bishops Hall, Lambourne, Essex Glamorgan
- Long family of Rood Ashton Rood Ashton, Wiltshire;Iron Acton, Gloucestershire;Yate, Gloucestershire;Cheddar, Somerset;Wellow, Somerset;South Wraxall, Wiltshire;Dolforgan, Montgomeryshire
- Lort-Phillips family of Lawrenny Castle Lawrenny, Pembrokeshire
- Loveden family of Buscot Park Buscot, Berkshire
- Loxdale family of Castle Hill Castle Hill, Cardiganshire
- Lucas-Scudamore family of Kentchurch Court Kentchurch, Herefordshire
- Lygon family, Earls Beauchamp Madresfield, Worcestershire;Duffield, Derbyshire;Dymock, Gloucestershire;Kempley, Gloucestershire;Brumby, Lincolnshire;London;Kingswinford, Staffordshire;Hall End, Warwickshire;Polesworth, Warwickshire
- Lyon family of Ashfield Hall Ashfield Hall, Cheshire;Great Neston, Cheshire;Prenton, Cheshire;Willaston by Nantwich, Cheshire;London
- Lyon, Winder and Corbett-Winder families Vaynor Vaynor, Montgomeryshire
- Mackworth family Shropshire;Shropshire
- Mackworth family, baronets, of The Gnoll The Gnoll, Glamorgan
- Macnamara family of Caddington Bury Caddington Bury, Bedfordshire;Caddington, Bedfordshire;Eaton Bray, Bedfordshire;Whipsnade, Bedfordshire;Flamstead, Hertfordshire;Llangoed, Brecknockshire
- Maddocks family of Prees Henlle, Whittington Prees Henlle, Shropshire
- Maenol estate, Llanidloes (Evans, Hayward and Philips families) Maenol, Montgomeryshire
- Manley family of Erbistock Erbistock, Denbighshire
- Mansel family, baronets, of Muddlescombe and Trimsaran Muddlescombe, Carmarthenshire
- Massy family of Cottesmore Cottesmore, Pembrokeshire
- Maybery family of Brecknock Brecknock, Brecknockshire
- Meredith family of Pentrebychan Hall, Wrexham Wrexham, Denbighshire
- Mesham family of Ewloe Hall Ewloe, Flintshire
- Meyler family of Tremynydd, St Davids Tremynydd, Pembrokeshire
- Milborne-Swinnerton-Pilkington family, baronets, of Wonastow Court Wonastow, Monmouthshire
- Millingchamp and Vaughan families of Plas Llangoedmor Plas Llangoedmor, Cardiganshire
- Molyneux-Williams family of Penbedw Penbedw, Denbighshire
- Morgan family of Cardigan Cardigan, Cardiganshire
- Morgan family of Chepstow Chepstow, Monmouthshire
- Morgan family of Golden Grove Golden Grove, Flintshire
- Morgan family, Barons Tredegar: Besthorpe Besthorpe, Norfolk
- Morgan family, Barons Tredegar: Brecon Brecknockshire;Powys
- Morgan family, Barons Tredegar: Brickendonbury Brickendonbury, Hertfordshire
- Morgan family, Barons Tredegar: Dartford Dartford, Kent
- Morgan family, Barons Tredegar: Glamorgan Glamorgan
- Morgan family, Barons Tredegar: London London
- Morgan family, Barons Tredegar: Monmouthshire Monmouthshire;Gwent
- Morgan family, Barons Tredegar: Stretham Stretham, Cambridgeshire
- Morgan family, Barons Tredegar: Tredegar Park Tredegar, Monmouthshire
- Morris family of Llandre Llandre, Pembrokeshire
- Morris family of The Hurst, CLun and Pentre-Nant Churchstoke The Hurst, Shropshire;Pentre-nant, Montgomeryshire
- Mostyn family of Plas Kynaston Plas Kynaston, Denbighshire
- Mostyn-Owen family of Woodhouse Woodhouse, Shropshire
- Myddelton family of Chirk Castle Chirk, Denbighshire;Burghill, Herefordshire
- Nanney family of Maesypandy Maesypandy, Merionethshire
- Napier family, baronets, of Luton Hoo Luton Hoo, Bedfordshire
- Naylor family of Leighton Hall, Powys
- Nevill family, Marquesses of Abergavenny: Abergavenny Abergavenny, Monmouthshire
- Nicholl family Monmouthshire;Gwent
- Nicholl family Glamorgan
- Oldfield family of The Farm, Betws-yn-Rhos Betws-yn-Rhos, Denbighshire
- Ormsby-Gore family, Barons Harlech Brogyntyn, Shropshire;Clenannau, Caernarfonshire
- Osborne family, Dukes of Leeds Baylies, Buckinghamshire;Farnham Royal, Buckinghamshire;Quainton, Buckinghamshire;Stoke Poges, Buckinghamshire;Wexham, Buckinghamshire;Wingrave, Buckinghamshire;Gog Magog Hills, Cambridgeshire;Stapleford, Cambridgeshire;Godolphin, Cornwall;Helford, Cornwall;Helston, Cornwall;Penrhyn, Cornwall;Penventon, Cornwall;Parsloes, Essex;Aldbury, Hertfordshire;North Mimms, Hertfordshire;Tring, Hertfordshire;London;Holborn, Middlesex;Syon Hill, Middlesex;Westminster, Middlesex;East Dereham, Norfolk;Kingston, Nottinghamshire;Abertanat, Shropshire;Newmarket, Suffolk;Wimbledon, Surrey;Barnsley, Yorkshire;Conisbrough, Yorkshire;Harthill with Woodall, Yorkshire;Hornby, Yorkshire;Kiveton Park, Yorkshire;Lindrick, Yorkshire;North Anston, Yorkshire;Seamer in Pickering Lythe Wapentake, Yorkshire;South Anston, Yorkshire;Thorpe Salvin, Yorkshire;Todwick, Yorkshire;Wakefield, Yorkshire;Wales, Yorkshire;Tanyllwyn, Denbighshire;Broniarth, Montgomeryshire;Mar Lodge, Aberdeenshire;Invereshie, Inverness-shire;Scilly Isles
- Overton family of Overton Overton, Flintshire
- Owen and Humphreys-Owen families of Glansevern Glansevern, Montgomeryshire
- Owen family of Garthangharad Garthangharad, Merionethshire
- Owen family of Penrhos Bradwen Penrhos, Anglesey
- Owen family, baronets, of Orielton Orielton, Pembrokeshire;Aberffraw, Anglesey;Bodowen, Anglesey;Llanidan, Anglesey;Clynnog, Caernarfonshire;Llandwrog, Caernarfonshire;Kidwelly, Carmarthenshire;Pembroke, Pembrokeshire;Penally, Pembrokeshire;Pembrey, Carmarthenshire
- Paget family, Marquesses of Anglesey Stanford-in-the-Vale, Berkshire;Iver, Buckinghamshire;Marlow, Buckinghamshire;Littleover, Derbyshire;Stalbridge, Dorset;Misterton, Leicestershire;Harmondsworth, Middlesex;West Drayton, Middlesex;Milborne Port, Somerset;Beaudesert, Staffordshire;Burton-upon-Trent, Staffordshire;Cannock, Staffordshire;Haywood, Staffordshire;Longdon, Staffordshire;Rugeley, Staffordshire;Surbiton, Surrey;Nuneaton, Warwickshire;Amlwch, Anglesey;Llanfair Pwllgwyngyll, Anglesey;Plas Newydd, Anglesey;Penrhyn, Caernarfonshire;Crobane, County Down;Galway, County Galway;Cooley, County Louth;Omeath, County Louth
- Panton family of Plas Gwyn Plas Gwyn, Anglesey
- Parry and Roberts families of Glan Paith Glan Paith, Cardiganshire
- Parry family of Llydiardau Llydiardau, Cardiganshire
- Parry family of Nantclwyd and Ruthin Nantclwyd, Denbighshire;Ruthin, Denbighshire
- Penn family of Camrose Camrose, Pembrokeshire
- Pennant family of Downing Downing, Flintshire;Bodfari, Flintshire;Bychton, Flintshire;Whitford, Flintshire
- Percivall family of Denton
- Philipps family of Aberglasney Aberglasney, Carmarthenshire
- Philipps family of Burton Burton, Pembrokeshire
- Philipps family of Cwmgwili Cwmgwili, Carmarthenshire
- Philipps family, baronets, of Picton Castle Picton Castle, Pembrokeshire
- Phillipps family of Longworth Longworth, Herefordshire
- Phillips family of Gwernheulod Gwernheulod, Flintshire
- Phillips family of Kilbarth Kilbarth, Pembrokeshire
- Phillips family of Slebech Slebech, Pembrokeshire
- Picton family of Poyston Poyston, Pembrokeshire
- Poizzi family, Brynbella, St Asaph Brynbella, Flintshire
- Powell family of Colyton Colyton, Devon
- Powell family of Llanharan Llanharan, Glamorgan
- Powell family of Llantilio Llantilio, Monmouthshire
- Powell family of Nanteos Nanteos, Cardiganshire
- Price family of Rhiwlas Rhiwlas, Merionethshire
- Price Jones family of Glanyrannell (Glanrannell) Glanyrannell, Carmarthenshire;Glanrannell, Carmarthenshire
- Probyn family of Huntley Huntley, Gloucestershire;Longhope, Gloucestershire;Newland, Gloucestershire
- Protheroe-Benon family of Trewern Trewern, Carmarthenshire
- Pryce family of Gunley Gunley, Montgomeryshire
- Pryse family of Pantdrain, Llangwig Pantdrain, Montgomeryshire
- Pryse family, baronets, and Saunders family of Ty Mawr, Cards etc Ty Mawr, Cardiganshire
- Pryse family, baronets, of Gogerddan Gogerddan, Cardiganshire
- Pryse-Rice family of Llwynybrain Llwynybrain, Carmarthenshire
- Pugh family of Argoed, Llanfair Argoed, Merionethshire
- Pugh family of Cymmerau Glandyfi, Cardiganshire
- Pugh family of Llanerchydol Llanerchydol, Montgomeryshire;Llanllwchaearn, Montgomeryshire;Welshpool, Montgomeryshire
- Pughe family of Helygog, Brithdir Helygog, Merionethshire
- Puleston family, baronets, of Emral, Worthenbury Emral, Flintshire;Worthenbury, Denbighshire
- Rees family of Tonn, Llandovery Tonn, Carmarthenshire
- Rice family, Barons Dynevor: Dynevor Castle Dynevor, Carmarthenshire
- Richards family of Caerynwch Caerynwch, Merionethshire
- Robertson family of Bath Bath, Somerset
- Roche family of Tregunter Tregunter, Brecknockshire
- Rogers family of Gelly, in Trefilan Trefilan, Cardiganshire
- Rosser Family Llansteffan, Carmarthenshire
- Rowlands family, Glenover, Haverfordwest Glenover, Pembrokeshire
- Rowley-Conwy family, of Bodrhyddan Bodrhyddan, Flintshire
- Ruck family of Pennal Pennal, Merionethshire
- Salesbury family of Bachymbyd and Pool Park Bachymbyd, Denbighshire;Pool Park, Denbighshire
- Salusbury family Salusbury, Flintshire
- Salusbury family, baronets, of Lleweni Lleweni, Denbighshire
- Scourfield family, baronets, of The Mote The Mote, Pembrokeshire;Maenclochog, Pembrokeshire;Williamston, Pembrokeshire
- Sidney family, Viscounts de l'Isle Monewden, Suffolk;Cranfield, Bedfordshire;Aston Sandford, Buckinghamshire;Stoke Poges, Buckinghamshire;Turville, Buckinghamshire;Bisley, Gloucestershire;Michelmersh, Hampshire;Eardisley, Herefordshire;Knighton, Herefordshire;Leominster, Herefordshire;Ashurst, Kent;Otford, Kent;Penshurst, Kent;Tonbridge, Kent;Deeping Fen, Lincolnshire;Tattershall, Lincolnshire;Baynards Castle, London;Leicester Fields, London;Leicester House, London;Panxworth, Norfolk;Ranworth, Norfolk;Chalgrove, Oxfordshire;Pyrton, Oxfordshire;Monewdon, Suffolk;Poslingford, Suffolk;Thwaite, Suffolk;Sheen, Surrey;Panningridge, Sussex;Robertsbridge, Sussex;Balsall Heath, Warwickshire;Hampton-in-Arden, Warwickshire;Long Itchington, Warwickshire;Abberley, Worcestershire;Battersby, Yorkshire;Ingleby Greenhow, Yorkshire;Sexhow, Yorkshire;Coity, Glamorgan;Newlands, Glamorgan;Old Radnor, Radnorshire
- Sloane-Stanley family of Paultons Paultons, Hampshire;Stoke Mandeville, Buckinghamshire;Copythorne, Hampshire;Limerston, Isle of Wight;Shalcombe, Isle of Wight;Cadoxton-juxta-Neath, Glamorgan;Courtrhydir, Glamorgan
- Somerset family, Dukes of Beaufort Chulmleigh, Devon;Denbury, Devon;Chaldon Herring, Dorset;Badminton House, Gloucestershire;Great Badminton, Gloucestershire;Hawkesbury, Gloucestershire;Kingswood, Gloucestershire;Stapleton, Gloucestershire;Stoke Gifford, Gloucestershire;Tidenham, Gloucestershire;Woolaston, Gloucestershire;Chalton, Hampshire;Holme Lacy, Herefordshire;Poston, Herefordshire;London;Brancaster, Norfolk;Heythrop, Oxfordshire;Dunster, Somerset;Burgate, Suffolk;Richmond, Surrey;Snitterfield, Warwickshire;Hilmarton, Wiltshire;Littleton Drew, Wiltshire;Netheravon, Wiltshire;Croome Court, Worcestershire;Beaufort, Brecknockshire;Crickhowell, Brecknockshire;Llangattock, Brecknockshire;Tretower, Brecknockshire;Kilvey, Glamorgan;Loughor, Glamorgan;Oystermouth, Glamorgan;Swansea, Glamorgan;Bedwellty, Monmouthshire;Chepstow, Monmouthshire;Dixton, Monmouthshire;Dixton Hadnock, Monmouthshire;Mitchel Troy, Monmouthshire;Portgaseg, Monmouthshire;Raglan, Monmouthshire;Trelleck, Monmouthshire;Troy House, Monmouthshire;Usk, Monmouthshire;Williamsburg, Virginia
- Stafford family, Dukes of Buckingham Writtle, Essex
- Stanley family, Barons Stanley of Alderley: Alderley Alderley, Cheshire
- Stanley family, Barons Stanley of Alderley: Penrhos Penrhos, Anglesey
- Starke family of Laugharne Castle Laugharne, Carmarthenshire
- Stepney family, baronets, of Prendergast Prendergast, Pembrokeshire
- Stepney-Gulston family of Derwydd Derwydd, Carmarthenshire
- Symons family of Mynde Park Mynde Park, Herefordshire;Cloverwell, Gloucestershire;Newland, Gloucestershire;Kilpeck, Herefordshire;Much Dewchurch, Herefordshire;Orcop, Herefordshire;Caldicott, Monmouthshire
- Talbot family of Margam Penkelly, Brecknockshire;Kidwelly, Carmarthenshire;Briton Ferry, Glamorgan;Kenfig, Glamorgan;Laleston, Glamorgan;Llandough, Glamorgan;Margam, Glamorgan;North Cornelly, Glamorgan;Oxwich, Glamorgan;Penrice, Glamorgan;Clovelly, Devon;Pilsdon, Dorset;Cumberworth, Lincolnshire;Carhampton, Somerset;Newick, Sussex;Marston, Wiltshire
- Tanner family of Monmouth Monmouth, Monmouthshire
- Thelwall family: Nantclwyd, Bathafarn Park, Llanbedr Park and Plas Coch Nantclwyd, Denbighshire;Bathafarn Park, Denbighshire;Plas Coch, Denbighshire;Llanbedr Park, Denbighshire
- Thomas and Benyon families of Llanfair and Dol-llan Llanfair, Cardiganshire;Dol-llan, Cardiganshire
- Thruston family of Talgarth and Pennal Tower Pennal, Merionethshire
- Townshend family, Marquesses Townshend Calverton, Buckinghamshire;Princes Risborough, Buckinghamshire;Ely, Cambridgeshire;Fordham, Cambridgeshire;Soham, Cambridgeshire;Ashbourne, Derbyshire;Walton-upon-Trent, Derbyshire;East Donyland, Essex;Great Bentley, Essex;Wivenhoe, Essex;Kempsford, Gloucestershire;Amwell, Hertfordshire;Balls Park, Hertfordshire;Bengeo, Hertfordshire;Gorhambury, Hertfordshire;Wigston Magna, Leicestershire;London;Canonbury, Middlesex;Clerkenwell, Middlesex;Binham, Norfolk;Coxford, Norfolk;East Raynham, Norfolk;Great Yarmouth, Norfolk;Helhoughton, Norfolk;Horsham St Faith, Norfolk;Langham, Norfolk;Morston, Norfolk;Oxwich with Pattesley, Norfolk;Raynham Hall, Norfolk;Stiffkey, Norfolk;Weasenham, Norfolk;Wellingham, Norfolk;West Rudham, Norfolk;Elkington, Northamptonshire;Tamworth, Staffordshire;Tettenhall, Staffordshire;Akenham, Suffolk;Great Thurlow, Suffolk;Kentford, Suffolk;Rendlesham, Suffolk;Flecknoe, Warwickshire;Lea Marston, Warwickshire;Wellesbourne, Warwickshire;Hannington, Wiltshire;Inglesham, Wiltshire;Ramsbury, Wiltshire;Risby, Yorkshire
- Trygarn family of Trygarn Trygarn, Caernarfonshire
- Turbervill family of Ewenny Ewenny, Glamorgan
- Tyler family of Mount Gernos Mount Gernos, Cardiganshire
- Vane-Tempest-Stewart family, Marquesses of Londonderry Carnlough, County Antrim;Garron Tower, County Antrim;Ballylawn, County Donegal;Ardglass, County Down;Comber, County Down;Craiganu, County Down;Killyleagh, County Down;Mount Stewart, County Down;Newtown, County Down;Newtownards, County Down;Bellaghy, County Londonderry;Londonderry, County Londonderry;Magherafelt, County Londonderry;Belmont, Durham;Durham, Durham;Embleton, Durham;Gilesgate, Durham;Gilligate, Durham;Kelloe, Durham;Long Newton, Durham;Penshaw, Durham;Rogerley, Durham;Seaham, Durham;West Rainton, Durham;Wynyard, Durham;London;Fulham, Middlesex;Ranksborough, Rutland;Springfield, Rutland;Pennal, Merionethshire;Talyllyn, Merionethshire;Towyn, Merionethshire;Plas Machynlleth, Montgomeryshire
- Vaughan and Jones families of Tanymanod and Blaenddol Ffestiniog, Merionethshire
- Vaughan family of Courtfield Courtfield, Herefordshire;Ruardean, Gloucestershire
- Vaughan family of Derwydd Derwydd, Carmarthenshire
- Vaughan family of Nannau Nannau, Merionethshire;Hengwrt, Merionethshire;Rhug, Merionethshire;Rug, Merionethshire;Meillionydd, Caernarfonshire;Ystumcolwyn, Montgomeryshire
- Vaughan family of Porthamel Porthamel, Brecknockshire;Talgarth, Brecknockshire;Llanddeusant, Carmarthenshire;Pembrey, Carmarthenshire;Llangennith, Glamorgan;Durnford, Wiltshire
- Vaughan family of Rheola Rheola, Glamorgan
- Vaughan family, Earls of Carbery: Golden Grove Golden Grove, Carmarthenshire
- Vaughan family, Earls of Lisburne Crosswood, Cardiganshire;Llanafan, Cardiganshire;Ashcombe, Devon;Mamhead, Devon;Grindon, Durham;Enfield, Middlesex;Alnwick, Northumberland;Berwick-upon-Tweed, Northumberland;Llangoedmore, Cardiganshire;Llanybyther, Carmarthenshire
- Vickers family of Criggion Criggion, Montgomeryshire
- Vivian family, Barons Swansea Swansea, Glamorgan
- Vivian family, Barons Vivian of Glynn Cardinham, Cornwall;Glynn, Cornwall;St Winnow, Cornwall;Llanendwen, Anglesey;Pentraeth, Anglesey;Plas Gwyn, Anglesey;Derwen, Denbighshire;Holywell, Flintshire
- Waddington family of Llanover Court Llanover, Monmouthshire
- Walsh family, Barons Ormathwaite Warfield, Berkshire;Newcastle Court, Radnorshire
- Walters family of Southwood, Roch Roch, Pembrokeshire
- Warrington family of Pentrepant Pentrepant, Shropshire;Bidston, Cheshire
- Weaver family Montgomeryshire;Powys
- Weaver family estates Shropshire;Shropshire
- Webley Parry family of Noyadd Trefawr Noyadd Trefawr, Cardiganshire
- West family of Ruthin Ruthin, Denbighshire;Milford-on-Sea, Hampshire;Chirk, Denbighshire
- Whitehall-Davies family of Broughton Hall and Llannerch Broughton, Flintshire;Llannerch, Denbighshire
- Willans family of Dolforgan Dolforgan, Carmarthenshire
- Willding family of Llanrhaiadr hall Llanrhaeadr, Denbighshire
- William family of the Glog, Llanwonno Llanwonno, Glamorgan
- Williams and Evans families, Bodwenin(in Llanderfel) Bodwenin, Merionethshire
- Williams family of Aberpergwm Aberpergwm, Glamorgan
- Williams family of Bryntirion Bryntirion, Radnorshire
- Williams family of Cwmcynfelyn Cwmcynfelyn, Cardiganshire
- Williams family of Hafodgaregog, Nanmor Hafodgaregog, Merionethshire
- Williams family of Hermon's Hill, Haverfordwest Hermon's Hill, Pembrokeshire;Camrose, Pembrokeshire;Haverfordwest, Pembrokeshire;West Walton, Pembrokeshire
- Williams family of Penbedw Hall Penbedw, Denbighshire
- Williams family of Penpont Penpont, Brecknockshire
- Williams family of Plas yn Blaenau, Llanwest Plas Yn Blaenau, Denbighshire
- Williams family of Plas yn Rhiw and Penarth Plas Yn Rhiw, Caernarfonshire;Penarth, Glamorgan
- Williams family of Tre-fach, Llanfair Nant-gwyn Llanfair Nant Gwyn, Pembrokeshire
- Williams family of Treffos, Llanfaes Treffos, Anglesey
- Williams family, Acre House, Acrefair Acre House, Flintshire
- Williams family, baronets, of Bodelwyddan Bodelwyddan, Flintshire
- Williams family, baronets, of Gwernyfed Gwernyfed, Brecknockshire
- Williams family, Ty Fry estate Pentraeth Ty Fry, Anglesey
- Williams Wynn family, baronets, of Wynnstay Chwaen, Anglesey;Llantrisant, Anglesey;Maenan, Caernarfonshire;Llanbadarnfawr, Cardiganshire;Bromfield, Denbighshire;Cefn, Denbighshire;Chirk, Denbighshire;Derwen, Denbighshire;Dyffryn Clwyd, Denbighshire;Glantanat, Denbighshire;Glascoed, Denbighshire;Llangollen, Denbighshire;Llansilin, Denbighshire;Ruabon, Denbighshire;Ruthin, Denbighshire;Valle Crucis, Denbighshire;Wrexham, Denbighshire;Wynnstay, Denbighshire;Yale, Denbighshire;Bangor Isycoed, Flintshire;Hopeowen, Flintshire;Overton, Flintshire;Glan-llyn, Merionethshire;Llanfor, Merionethshire;Mallwyd, Merionethshire;Rhiwgoch, Merionethshire;Trawsfynydd, Merionethshire;Cyfeiliog, Montgomeryshire;Darowen, Montgomeryshire;Hirnant, Montgomeryshire;Llangurig, Montgomeryshire;Machynlleth, Montgomeryshire;Overgorther, Montgomeryshire;Strata Marcella, Montgomeryshire;Talerddig, Montgomeryshire;Trefeglwys, Montgomeryshire;Tilston, Cheshire;Westminster, Middlesex;Llanforda, Shropshire;Much Wenlock, Shropshire;Oswestry, Shropshire;Overley, Shropshire;Stanwardine, Shropshire;Trefar-Clawdd, Shropshire
- Williams-Drummond family, baronets, of Edwinsford Edwinsford, Carmarthenshire
- Williams-Wynne family of Peniarth Peniarth, Merionethshire;Aberllefenni, Merionethshire;Wern, Caernarfonshire;Clegyrog, Anglesey;Friars, Anglesey;Penbedw, Denbighshire;Newtown, Montgomeryshire;Mallwyd, Merionethshire;Pickhill, Denbighshire;Ynys-y-maengwyn, Merionethshire
- Wilson family of Tyglin Tyglin, Cardiganshire
- Windsor-Clive family, Earls of Plymouth: Denbighshire and Radnorshire Denbighshire;Radnorshire;Clwyd;Powys
- Windsor-Clive family, Earls of Plymouth: Hewell Grange Hewell Grange, Worcestershire
- Windsor-Clive family, Earls of Plymouth: Oakley Park Oakley Park, Shropshire
- Windsor-Clive family, Earls of Plymouth: St Fagans St Fagans, Glamorgan
- Wogan family of Llanstinan Llanstinan, Pembrokeshire
- Wood family of Gatton Park, Surrey Monmouthshire;Glamorgan
- Wood family of Littleton Littleton, Middlesex;Middleham, Yorkshire;Gwernyfed, Brecknockshire
- Wyatt family of Troy House Mitchell Troy, Monmouthshire
- Wyndham-Quin family, Earls of Dunraven and Mountearl Dunraven, Glamorgan;Clearwell, Gloucestershire
- Wynn family of Penhesgin Penhesgin, Anglesey
- Wynn family, baronets, of Gwydir Gwydir, Caernarfonshire
- Wynn family, Barons Newborough Glynllifon, Caernarfonshire;Bodvean, Caernarfonshire;Maenan, Caernarfonshire;Corwen, Merionethshire;Ffestiniog, Merionethshire;Rhug, Merionethshire;Rug, Merionethshire
- Wynne and Wynne-Finch families of Cefnamwlch Cefnamwlch, Caernarfonshire
- Wynne and Wynn-Finch families of Voelas Voelas, Denbighshire
- Wynne family of Bodewryd Bodewryd, Anglesey
- Wynne family of Cefnamwlch Cefnamwlch, Caernarfonshire
- Wynne family of Coed Coch and Trovarth Coed Coch, Denbighshire;Trovarth, Denbighshire
- Wynne family of Ty Gwyn and New Hall (Plas Wyn), Llansanffraid Glynceiriog Ty Gwyn, Denbighshire;Plas Wyn, Denbighshire
- Wynne Ffinch family of Stokesley Stokesley, Yorkshire
- Wynne-Edwards family of Plas Nantglyn Plas Nantglyn, Denbighshire
- Wynne-Finch family of Voelas and Cefnamwlch, Denbighs: Pooley Hall Pooley Hall, Warwickshire
- Yale and Jones-Parry families of Madryn Madryn, Caernarfonshire
- Yonge family of Bryniorkin Bryniorkin, Flintshire
Paper catalogues available to view at The National Archives - (503)
- NRA 29063 Aberclydan Brewery, Llanon link to online catalogue
- NRA 29983 Aberystwyth Borough
- NRA 29980 Aberystwyth Corn & General Market Co link to online catalogue
- NRA 27781 Aberystwyth shipping records
- NRA 33386 Dannie Abse, poet, novelist and dramatist: corresp and literary papers link to online catalogue
- NRA 41666 Leo Abse MP: corresp and papers link to online catalogue
- NRA 28773 Addams-Williams family of Llangibby: family and estate papers
- NRA 36407 Anglo-Welsh Review, magazine link to online catalogue
- NRA 29972 John Bodvan Anwyl, Celtic scholar: corresp and sermons link to online catalogue
- NRA 26986 Ashburnham family, Earls of Ashburnham: Welsh estate papers
- NRA 29982 Association of Welsh Local Authorities link to online catalogue
- NRA 29973 Bagot family, Barons Bagot: Denbighshire and Merionethshire estate papers
- NRA 39282 Bailey family, Barons Glanusk, of Glanusk Park: deeds and papers
- NRA 41930 Elizabeth Baker, diarist: corresp and papers link to online catalogue
- NRA 35949 Baker-Gabb family of The Chain, Abergavenny: papers link to online catalogue
- NRA 29938 Baker-Gabb family of The Chain, Abergavenny: family and estate papers link to online catalogue
- NRA 28416 Bala College, Merioneth
- NRA 38279 Sir John Ballinger, educationist and librarian: papers link to online catalogue
- NRA 28360 Bangor diocese
- NRA 36404 Madame Lucie Barbier, singer and pianist: corresp and papers
- NRA 29977 Barmouth Harbour Trust link to online catalogue
- NRA 34650 Helen E Behrens, genealogist: MS collection
- NRA 38944 Nicholas Jerome Bennett MP: corresp and papers
- NRA 30281 Keith Lander Best, MP: Ynys Mon constituency corresp and papers link to online catalogue
- NRA 37329 Evan Evans Bevan Ltd, brewers, wine and spirit merchants, Neath link to online catalogue
- NRA 33471 Alison Bielski, poet: literary MSS and journals
- NRA 36314 Birdsall & Son Ltd, bookbinders, Northampton
- NRA 39206 Bodrhyddan MSS
- NRA 41878 Bonsall family of Fronfraith: estate papers link to online catalogue
- NRA 34349 Bowen family of Llwyngwair: family and estate papers incl those of Bevan family of Laugharne
- NRA 18524 HL Bradfer-Lawrence MSS
- NRA 38332 Sir Joseph Alfred Bradney, historian: Clytha MSS collection
- NRA 38269 Sir Joseph Alfred Bradney, historian: papers
- NRA 29618 Brecon and Radnor Divisional Labour Party
- NRA 40940 Charles Edward Breese MP, solicitor and antiquary: corresp and papers
- NRA 38561 Breese, Jones & Casson, solicitors, Portmadoc
- NRA 40548 British Broadcasting Corporation, Wales: radio and television scripts
- NRA 40531 Leonard Joseph Brown: diaries incl accounts of holidays in Wales
- NRA 31415 Buckley family of Castell Gorfod: family and estate papers
- NRA 40922 Burchinshaw family of Llansannan: deeds and papers
- NRA 37029 Bynea Supply Stores
- NRA 41598 Cambrian Airways Ltd, Rhoose link to online catalogue
- NRA 31419 Cambrian Archaeological Association
- NRA 35819 Ian and Thalia Campbell, peace campaigners: papers link to online catalogue
- NRA 39290 Campbell-Davys family of Neuadd-fawr: deeds and papers
- NRA 40452 Joseph Herbert Canning, Monmouthshire local historian: working papers link to online catalogue
- NRA 41887 Cardiff Bay Opera House Trust
- NRA 38317 Cardiganshire County Roads Board
- NRA 30554 Cardiganshire Liberal Association
- NRA 40935 Cardiganshire Military Service Appeal Tribunal link to online catalogue
- NRA 31417 Cardiganshire Quarter Sessions
- NRA 40457 Lady Olwen Carey-Evans: Lloyd George family corresp and papers link to online catalogue
- NRA 31116 Carpenter-Holland-Griffith family of Carreglwyd: family and estate papers
- NRA 38331 FC Carter, antiquarian bookseller: MS collection
- NRA 35361 Cefnbryntalch estate: deeds and papers link to online catalogue
- NRA 38302 Brenda Chamberlain, artist and writer: papers and literary MSS link to online catalogue
- NRA 41931 Edgar Leyshon Chappell, social reformer: corresp and papers link to online catalogue
- NRA 38475 Chester Street Baptist Church, Wrexham
- NRA 30009 Child-Villiers family, Earls of Jersey: Glamorgan deeds
- NRA 10568 Chirk Castle MSS
- NRA 40536 James Clement, poet and dramatist called Alarch Ogwy: corresp and papers
- NRA 23682 Robert Clive, Baron Clive, and Edward Clive, 1st Earl of Powis: corresp and papers
- NRA 40266 CND Cymru
- NRA 37538 Cochrane family, Earls of Dundonald: Gwrych Castle estate papers link to online catalogue
- NRA 39213 Colby family of Ffynone: deeds and papers
- NRA 11467 Coleman deeds
- NRA 33274 Committee of Welsh District Councils link to online catalogue
- NRA 34694 Corbett-Winder family of Vaynor Park: family and estate papers incl Devereux, Hayes, and Lyon famil
- NRA 28707 Council for the Principality
- NRA 38318 Council for the Protection of Rural Wales
- NRA 37942 Council of Welsh Districts
- NRA 38327 Cowethas Flamank
- NRA 38556 Crafnant and Gerddi Bluog estates
- NRA 31420 Crawshay family of Cyfarthfa: family, business and estate papers
- NRA 33557 (Leonard) Eliot Crawshay-Williams MP, poet and novelist: family, political and literary corresp and
- NRA 37213 Croesor Slate Quarries
- NRA 38580 Crosse family of Shaw Hill: Welsh estate records link to online catalogue
- NRA 40532 Cwmni Theatr Hwyl a Fflag
- NRA 37380 Cynllaith Owain manor
- NRA 30323 David Robert Daniel, local politician and civil servant: corresp and papers link to online catalogue
- NRA 36940 David & David, land agents and surveyors, Cardiff
- NRA 38932 Aneirin Talfan Davies, writer and broadcaster: corresp and papers
- NRA 25195 Benjamin Davies, electrical engineer: corresp and papers
- NRA 31414 Clement Davies, politician: corresp and papers
- NRA 40933 D Teifigar Davies, Calvinistic Methodist minister: collected MSS incl papers of Richard Bennett, hi
- NRA 34444 David Davies, MP and industrialist: corresp and papers
- NRA 31418 DR Davies: drama collection
- NRA 37133 Elwyn Davies, historical geographer and civil servant: corresp and papers
- NRA 32982 George Maitland Lloyd Davies, Christian pacifist: corresp and papers link to online catalogue
- NRA 32996 Gwilym Davies, director of League of Nations Union: corresp and papers link to online catalogue
- NRA 38929 Hubert Davies, composer: music MSS link to online catalogue
- NRA 36312 J Conway Davies, historian and palaeographer: papers link to online catalogue
- NRA 33123 John Glyn Davies, author and Celtic scholar: manuscripts, correspondence and papers
- NRA 29236 John Humphreys Davies, bibliographer: Cwrtmawr MS Collection link to online catalogue
- NRA 28425 John Paternus Gildas Davies, Roman Catholic priest: corresp and papers link to online catalogue
- NRA 40909 Llywelyn ap Ifan Davies, physician: family papers and collected MSS link to online catalogue
- NRA 32989 Owen Davies, Baptist minister: MS collection rel to Welsh Baptists link to online catalogue
- NRA 41877 Rhys Davies, writer: literary papers link to online catalogue
- NRA 41364 William Watkin Davies, barrister, historian and political scientist: diaries, corresp and papers
- NRA 37139 Davies Griffith (later Gough) family of Caerhun: deeds and papers
- NRA 41898 Davies-Cooke family of Gwysaney: collected MSS
- NRA 34660 De Rutzen family, Barons de Rutzen, of Slebech: deeds and papers incl those of Barlow and Phillips link to online catalogue
- NRA 41957 Development Board for Rural Wales link to online catalogue
- NRA 34425 Lewis Weston Dillwyn, naturalist: diaries and misc papers
- NRA 34422 William Dillwyn, Quaker merchant: diaries
- NRA 28696 Dillwyn-Venables-Llewellyn family, baronets, of Penllergaer and Llysdinam: family and Penllergaer e
- NRA 34433 Paul Diverres: MSS and notes on celtic languages link to online catalogue
- NRA 41723 Desmond Donnelly MP: political corresp and papers link to online catalogue
- NRA 28742 Duchy of Cornwall: Welsh records
- NRA 22798 Duff Gordon family, baronets, of Harpton Court: family and estate papers
- NRA 34357 Dugdale family of Llwyn: deeds and papers incl those of Humffreys family link to online catalogue
- NRA 37218 Eaton-Evans & Williams, solicitors, Haverfordwest: clients papers
- NRA 28611 Edward Jones, 'Iorwerth Ddu' Baptist minister: papers
- NRA 40972 Edwardes family, Barons Kensington: corresp and papers link to online catalogue
- NRA 35591 Edwards family of Nanhoron: family and estate papers link to online catalogue
- NRA 42410 Huw Thomas Edwards, trade unionist and politician: corresp and papers link to online catalogue
- NRA 34881 Jack Edwards, bookseller and musician, Aberystywth: letters from America link to online catalogue
- NRA 41880 Sir Owen Morgan Edwards, author and educationalist: corresp and papers incl collected MSS
- NRA 26744 Sir John Goronwy Edwards, historian: corresp and papers link to online catalogue
- NRA 11472 Thomas Charles Edwards, principal of the University College of Wales, Aberystwyth: personal and fam link to online catalogue
- NRA 40450 Eisteddfod Genedlaethol Cymru (National Eisteddfod of Wales)
- NRA 40397 Dafydd Elis Elis-Thomas, Baron Elis-Thomas of Nant Conwy: corresp and papers link to online catalogue
- NRA 38600 Ellis and Williams families of Plas Brondanw: deeds and papers
- NRA 41955 Richard Jenkin Ellis, vice-chairman of Cardiganshire County Council: corresp and papers
- NRA 28609 Robert Ellis, Baptist minister and poet: corresp and papers
- NRA 26129 Thomas Edward Ellis, politician: corresp and papers
- NRA 40268 Thomas Iorworth Ellis, educationist: corresp and papers
- NRA 37534 Sir Ellis Jones Ellis-Griffith, MP and barrister: corresp and papers link to online catalogue
- NRA 34683 Harold T Elwes: Welsh deeds and papers
- NRA 35733 Frederick Elwyn-Jones, Baron Elwyn-Jones: corresp and papers link to online catalogue
- NRA 34448 Evans & Bevan Ltd, colliery proprietors, Neath link to online catalogue
- NRA 38942 Alcwyn Caryni Evans, antiquary: working papers, mainly rel to Carmarthen
- NRA 40264 David Evans, composer: music MSS
- NRA 41694 Sir Evan Vincent Evans, journalist: corresp and papers
- NRA 37185 Evans family of Broom Hall: estate papers
- NRA 41932 George Ewart Evans, author, lecturer and broadcaster: corresp and papers link to online catalogue
- NRA 39048 George Eyre Evans, Unitarian minister and antiquary: personal and family corresp and papers
- NRA 34880 Griffith Evans, veterinary surgeon and microscopist: personal and family corresp and papers link to online catalogue
- NRA 41879 John Gwenogvryn Evans, historian and palaeographer: MSS and papers link to online catalogue
- NRA 37762 John Thomas Evans, antiquary and rector of Stow-on-the-Wold: papers
- NRA 35114 RH Evans: MS collection, mainly rel to Pwllheli
- NRA 31259 Ron Evans, Ebbw Vale Constituency Labour Party secretary: political corresp and papers
- NRA 35113 Samuel James Evans, school master, educationalist and author: corresp and papers
- NRA 30317 Sir Samuel Thomas Evans, MP and judge: corresp and papers link to online catalogue
- NRA 41956 Thomas John Evans, journalist and antiquary: corresp and papers mainly rel to London Welsh history
- NRA 30614 W Evans George & Sons, solicitors, Newcastle Emlyn: clients papers
- NRA 40393 William Evans, grocer, Cas-mael and Treletert
- NRA 41897 William Evans, poet as Wil Ifan: corresp
- NRA 39244 Ffosrhydgaled estate
- NRA 37150 Ffoulkes family of Eriviat Hall: deeds and papers
- NRA 40929 John Fisher, chancellor of St Asaph, antiquary: corresp and papers
- NRA 40125 Fishguard Harbour Improvement Co link to online catalogue
- NRA 19710 Herbert John Fleure, anthropologist and geographer: papers link to online catalogue
- NRA 34423 Benjamin Flower, political writer: corresp with his wife
- NRA 36840 Foley family of Ridgeway: deeds and papers link to online catalogue
- NRA 38931 Sir Idris Llewelyn Foster, Celtic scholar: corresp and papers
- NRA 37529 Francis family, mining engineers and managers: papers, mainly rel to Cardiganshire mines, and famil link to online catalogue
- NRA 40392 Dorothy May Fraser, author and travel writer as Maxwell Fraser: corresp and papers
- NRA 40537 John Fraser, Celtic scholar: papers incl those of Edmund Crosby Quiggin
- NRA 34424 Gee & Son Ltd, printers, Denbigh link to online catalogue
- NRA 29446 William George, musician: music MSS link to online catalogue
- NRA 35107 William George, composer: music MSS link to online catalogue
- NRA 42411 William George, solicitor: personal and family corresp and papers, incl diaries, corresp and papers link to online catalogue
- NRA 34656 Gethin family of Cernioge: deeds and estate papers
- NRA 34441 John Gibson, sculptor: letters to Henry Sandbach and his wife
- NRA 11469 Glynne family, baronets, of Hawarden: family and estate papers
- NRA 41886 William Glynne-Jones, author: corresp and papers
- NRA 35102 Francis Green, antiquary and lawyer: MS collection rel to Pembrokeshire link to online catalogue
- NRA 34468 Gregynog estate rentals and account books
- NRA 35375 Gregynog Press
- NRA 35100 Griffin family of Newton Court: corresp, deeds and papers link to online catalogue
- NRA 35099 Edward Griffith, antiquary: MS collection link to online catalogue
- NRA 26746 Griffith family of Llanfair and Brynodol: family and estate papers
- NRA 40906 John Edwards Griffith, antiquary and naturalist: corresp, papers and collected MSS
- NRA 40492 Richard Griffith, local historian and poet called Carneddog: corresp and papers
- NRA 41721 Ywain Goronwy ap Griffith, architect: professional papers
- NRA 40491 David Rees Griffiths, writer called Amanwy: literary papers
- NRA 23695 James Griffiths, secretary of state for Wales: corresp and papers
- NRA 40920 John Griffiths, principal of Bombay School of Arts: corresp
- NRA 34427 William Griffiths, Calvinistic Methodist minister: corresp, journals and diaries
- NRA 39574 William John Gruffydd MP, poet and Celtic scholar: papers
- NRA 37163 Gulston (later Stepney-Gulston) family of Derwydd: deeds and papers
- NRA 35096 Gwernyfed estate papers link to online catalogue
- NRA 40514 Hamer family of Glanyrafon: deeds and papers
- NRA 40926 Sir William Hamilton, diplomat, and Charles Francis Greville MP: corresp and papers, mainly rel to
- NRA 28660 Hanmer family, baronets, of Hanmer and Bettisfield: family and estate papers
- NRA 28608 Harford family, baronets, of Falcondale: estate papers
- NRA 28327 Howel Harris, founder of the Calvinistic Methodists: diaries and papers
- NRA 35083 Harrison & Sons, solicitors, Welshpool: clients papers
- NRA 35092 Harrison family of Llantysilio: corresp and papers link to online catalogue
- NRA 41720 Haswell Brothers & Co, chartered accountants, Chester link to online catalogue
- NRA 36325 Heathcote-Drummond-Willoughby family, Earls of Ancaster: Gwydir estate papers
- NRA 38551 Heaton family of Plas Heaton: deeds and papers link to online catalogue
- NRA 28334 Hensol estate: deeds
- NRA 20151 Herbert family, Earls of Powis: family and estate papers
- NRA 20203 Herbert family, Earls of Powis: manorial records
- NRA 40593 Holiaduron Anghydffuriol 1935-36 (National Library of Wales: survey of records of independent nonco
- NRA 39261 Holland family of Pennant, Eglwys-bach: deeds and papers
- NRA 34426 Hugh Emlyn Hooson, Baron Hooson: corresp and papers
- NRA 37128 Cledwyn Hughes, Baron Cledwyn of Penrhos: corresp and papers
- NRA 35082 Hughes family of Hendrefelen: deeds and papers link to online catalogue
- NRA 28287 Hugh Michael Hughes, Congregational minister: corresp and papers
- NRA 26126 Hugh Robert Hughes: MS collections
- NRA 38536 John Roberts Hughes, antiquary and historian of the Quakers in Wales: working papers and collected
- NRA 38311 Humphrey Jones, 'Bryfdir', poet: literary MSS
- NRA 40398 Edward Morgan Humphreys, journalist and novelist: corresp and papers link to online catalogue
- NRA 41384 Emyr Humphreys, writer: corresp and papers
- NRA 16469 Humphreys-Owen family of Glansevern: family and estate papers
- NRA 40925 Thomas Lewis James, solicitor and antiquary: collection rel to history of Pembrokeshire
- NRA 36004 James, Williams and Evans families of Penralley: family and estate corresp and papers
- NRA 40942 Jeffreys & Powell, solicitors, Brecon: deeds and papers
- NRA 40921 David Jenkins, musician and composer: papers
- NRA 40465 James Travis Jenkins: collection rel to the Lancashire and Western Sea Fisheries Committee
- NRA 34430 John Jenkins, Resolven and Neath antiquary: MS collection
- NRA 34429 Herbert Stanley Jevons, economist: corresp and papers
- NRA 34585 Augustus Edwin John, painter and etcher: corresp and papers link to online catalogue
- NRA 33983 Edward Thomas John, industrialist and politician: corresp and papers
- NRA 31596 Gwen John, painter: corresp and papers link to online catalogue
- NRA 28612 Johnes family of Dolaucothi: corresp and papers
- NRA 39802 Sir Cadwaladr Bryner Jones, agriculturalist: papers and MS collection
- NRA 25706 David Jones, artist and writer: corresp and literary MSS link to online catalogue
- NRA 39571 David Glanaman Jones, Pontardawe, minister and writer: papers
- NRA 40924 David James Jones, poet and author 'Gwenallt': corresp and papers
- NRA 40908 Donald H Jones, local historian: corresp, papers and collected MSS rel to Neath
- NRA 37182 DTM Jones & Co, solicitors, Llandovery
- NRA 35581 DTM Jones & Co, solicitors, Llandovery: maps and plans
- NRA 40448 Elizabeth Mary Jones, novelist called Moelona: corresp and papers
- NRA 28610 Evan Kenffig Jones, Baptist minister: corresp and papers
- NRA 37164 Jones family of Derry Ormond: deeds and papers
- NRA 35095 Jones family of Gwynfryn: deeds and papers link to online catalogue
- NRA 39314 Jones family of Llanarth: deeds and papers
- NRA 39256 Jones family of Pen y Bryn, Ruabon: deeds and papers incl Maddocks family of Prees Henlle, Whitting
- NRA 41891 Glyn Jones, author: literary papers
- NRA 41387 Gwilym Jones MP: constituency corresp and papers
- NRA 37541 Gwyn Jones, scholar, novelist and short-story writer: corresp and papers link to online catalogue
- NRA 34120 Harold Jones: corresp rel to a proposed Trades Union Congress for Wales link to online catalogue
- NRA 40449 Idwal Jones, playwright and humorist: corresp and papers
- NRA 41890 Jack Jones, author: diaries, notebooks and literary papers link to online catalogue
- NRA 41722 John Robert Jones, philosopher: papers
- NRA 36445 John William Jones, Blaenau Ffestiniog quarryman and collector of Welsh literary MSS: papers
- NRA 35200 Kitty Idwal Jones, folklorist, missionary and educationalist: corresp and papers
- NRA 37532 Miss FM Jones: records of Flintshire manors
- NRA 37531 Owen Thomas Jones, geologist: corresp and papers link to online catalogue
- NRA 37537 Rees Jenkin Jones, Unitarian minister: corresp and papers link to online catalogue
- NRA 26125 Sir Henry Haydn Jones, politician: corresp and family papers
- NRA 40907 Thomas Llechid Jones, clergyman and antiquary: corresp, papers and collected MSS
- NRA 30994 Thomas Jones, economist and public servant: corresp and papers
- NRA 35311 Thomas Gwynn Jones, Celtic scholar: corresp and papers
- NRA 40453 Thomas Owen Jones, actor and author called Gwynfor: corresp and papers
- NRA 40928 William Rhys Jones, Baptist minister and folklorist, 'Gwenith Gwyn': corresp and papers
- NRA 38549 Jones-Bateman famiy of Pentre Mawr, Abergele: deeds and papers
- NRA 35112 Henry Jones-Davies, public servant: personal and family corresp and papers
- NRA 35177 Kemeys-Tynte family of Cefn Mabli: family and estate papers
- NRA 26127 Mrs M Kyle: Welsh deeds
- NRA 41608 la Warre family: Swineshead deeds
- NRA 33918 Labour Party Wales
- NRA 40400 William Henry Clement Le Hardy, archivist: collected deeds rel to Wales
- NRA 34472 Lee family of Dinas Powis: deeds and estate papers
- NRA 34496 Bertie Edward Parker Leighton MP: Sweeney Hall MS collection
- NRA 40939 Lewes family of Llanllyr: deeds and estate papers
- NRA 34648 Lewes family of Llysnewydd: family and estate papers
- NRA 33230 Alun Lewis, author: literary MSS, corresp and papers link to online catalogue
- NRA 37539 David Morgan Lewis, Congregational minister and physicist: papers and collected MSS link to online catalogue
- NRA 39234 Edward Aneurin Lewis, historian: working papers
- NRA 38333 Lewis family of Clynfiew: deeds and estate papers
- NRA 39235 Lewis family of St Pierre: deeds and manorial records
- NRA 41973 Henry Lewis, Celtic scholar: papers rel to the Council for Wales and Monmouthshire
- NRA 36566 Hywel David Lewis, philosopher: papers
- NRA 40930 John Lewis, poet and musician 'Eos Glyn Wyre', and David Lewis, composer: corresp and papers
- NRA 16471 Sir John Herbert Lewis MP: corresp and papers
- NRA 40927 Timothy Lewis, literary scholar: corresp and papers, incl papers of John Gwenogvryn Evans
- NRA 28381 Llandaff diocese
- NRA 40938 Llanerchfrochwel estate
- NRA 34434 Llanidloes Borough
- NRA 37142 Lloyd and Howard families of Wigfair: deeds and papers incl rel to Hafodunos estate
- NRA 39803 D Lloyd & Son, solicitors, Lampeter
- NRA 40534 David John de Lloyd, musical scholar and composer: music MSS
- NRA 30021 Lloyd family, baronets, of Bronwydd: deeds, manorial documents and estate papers
- NRA 30036 Lloyd family of Aston Hall: family and estate papers
- NRA 40936 Lloyd family of Brunant: deeds and papers
- NRA 34882 Lloyd family of Dolobran: deeds and papers link to online catalogue
- NRA 35106 Lloyd family of Glansevin: family and estate papers
- NRA 39268 Lloyd family of Penty Park: deeds and papers
- NRA 37166 Lloyd family of Plas Cilybebyll: deeds and papers
- NRA 34436 John Lloyd, historian: MS collection rel to the iron industry
- NRA 38243 Lloyd (later Hall) family of Cilgwyn: deeds and papers
- NRA 38345 Richard Dafydd Vivian Llewellyn Lloyd, novelist: corresp and literary MSS
- NRA 39248 John Davies Knatchbull Lloyd, antiquary and public servant: Montgomeryshire deeds
- NRA 28941 David Lloyd George, 1st Earl Lloyd George and Dame Margaret Lloyd George: corresp and papers
- NRA 35199 David Lloyd George, 1st Earl Lloyd George: political and family papers
- NRA 36345 DG Lloyd Hughes, local historian: collected papers, mainly rel to Pwllheli
- NRA 39471 Local Government Boundary Commission: papers rel to boundary reviews in Wales
- NRA 36427 London, Midland & Scottish Railway Co: records of Welsh railway companies
- NRA 34473 Longueville & Co, solicitors, Oswestry: client's papers
- NRA 37098 Longueville & Co, solicitors, Oswestry: probate records
- NRA 38499 Loxdale family of Castle Hill: deeds and papers
- NRA 34659 RK Lucas & Son, estate agents, Haverfordwest: clients papers
- NRA 36564 Tom Macdonald, novelist: corresp, literary MSS and papers
- NRA 38329 Machynlleth Urban District Council
- NRA 38601 Maenol estate, Llanidloes
- NRA 34111 William Henry Mainwaring MP: corresp and papers
- NRA 38495 Mansel family, baronets, of Muddlescombe and Trimsaran: deeds
- NRA 38555 Massy family of Cottesmore: Pembrokeshire and Irish estate deeds and papers
- NRA 23719 Maybery family of Brecon: estate and business papers
- NRA 39216 Michaelchurch manor
- NRA 33078 Milborne family of Wonastow: deeds and papers
- NRA 31113 Monmouthshire and South Wales Coalowners Association link to online catalogue
- NRA 26985 Morgan, Bruce & Nicholas, solicitors, Pontypridd, Glam: papers rel to Aberfan tip disaster
- NRA 28351 Morgan family, Barons Tredegar: family and estate papers
- NRA 39246 Morgan Richardson, solicitors, Cardigan
- NRA 36408 Robert Morgan, artist and writer: corresp and literary MSS
- NRA 38599 Morrall family of Plas Yolyn, Dudleston: family and estate papers
- NRA 36902 Morris & Son, Cambrian Establishment, tailors, dressmakers and drapers, Barmouth
- NRA 35826 John Morris of Chester: transcripts of the `Salusbury Pedigrees'
- NRA 41933 Sir Rhys Hopkin Morris MP: papers link to online catalogue
- NRA 35825 National Library of Wales: deeds
- NRA 26130 National Library of Wales Minor Lists and Summaries
- NRA 37025 National Library of Wales: misc accessions
- NRA 31595 National Library of Wales: MSS rel to Brittany
- NRA 36876 National Library of Wales: pedigree rolls
- NRA 9200 National Library of Wales: scientific MSS
- NRA 28324 National Library of Wales: Unitarian collections
- NRA 35821 Mudiad Ysgolion Meithrin (National Association of Welsh Medium Nursery Schools and Play-groups)
- NRA 29447 Louis P Nemo 'Roparz Hemon', Breton writer: corresp and papers link to online catalogue
- NRA 40941 Nerquis Hall estate
- NRA 34638 Nevill, Druce & Co, copper smelters, Llanelli
- NRA 30022 Nevill family, Marquesses of Abergavenny: Mon and Herefs deeds and estate papers
- NRA 40937 Newman, Paynter & Co, solicitors, Yeovil: Welsh deeds and papers
- NRA 28330 North Cardiganshire Calvinistic Methodist Presbytery
- NRA 37317 North Wales Temperance Union
- NRA 11471 Ormsby-Gore family, Barons Harlech: family and estate papers
- NRA 27062 Ottley family of Pitchford Hall: family corresp and papers
- NRA 9005 Ottley family of Pitchford Hall: family and estate papers
- NRA 39265 Edward Owen, antiquary: corresp and papers
- NRA 39264 Owen family of Orielton: deeds and papers
- NRA 41719 Owen Owen, poet as Owain Lleyn: corresp and poems
- NRA 26605 Richard Trevor Owen, canon of St Asaph: deeds and papers, incl papers of Sir William Williams, 1st
- NRA 26141 Thomas Edward Owen, Manchester and Milford Railway way inspector: corresp and papers
- NRA 39573 Thomas Owen, 'Hesgin', writer: corresp and papers
- NRA 28740 Panton family of Plas Gwyn: deeds and papers
- NRA 37530 Parry family of Llidiardau: family and estate papers link to online catalogue
- NRA 40269 Sarah Winifred Parry, author: corresp and papers
- NRA 40455 Daniel Parry-Jones, author: literary papers
- NRA 40484 Sir Thomas Herbert Parry-Williams, poet, essayist and scholar: corresp and papers link to online catalogue
- NRA 37976 Pembrokeshire Conservative Association
- NRA 29488 Pembrokeshire parishes
- NRA 37140 Pennant family of Downing: deeds and papers
- NRA 36342 Philipps family, baronets, of Picton Castle: estate papers
- NRA 28426 Philipps family, baronets, of Picton Castle: family and estate papers
- NRA 34637 Philipps family of Cwmgwili: estate papers incl Jenkins family of Cilbronnau
- NRA 37172 David Rhys Phillips, 'Beili Glas', librarian and historian of the Vale of Neath: corresp, working p
- NRA 37031 Edgar Phillips, 'Trefin', archdruid of Wales and poet: corresp and papers
- NRA 29378 Picton family of Poyston and Iscoed: deeds and family papers link to online catalogue
- NRA 40395 Plaid Cymru
- NRA 34088 Planet magazine
- NRA 39572 Plas Llangoedmor MSS
- NRA 34184 Powell Brothers Ltd, mechanical engineers, Wrexham
- NRA 32868 Powell family of Nanteos: family and estate papers
- NRA 33080 Powles & Tyler, solicitors, Monmouth
- NRA 36565 Powysland Club: corresp and papers of Roderick Urwick Sayce, geographer and editor of 'Montgomerysh
- NRA 39382 Powysland Club: MS collections
- NRA 28329 Presbyterian Church of Wales (Calvinistic Methodists)
- NRA 28345 Presbyterian Church of Wales (Calvinistic Methodists): general collections
- NRA 39381 Price family of Rhiwlas: family and estate papers
- NRA 40596 Daniel Protheroe, musician, and Rhys Morgan, singer and conductor: music MSS and papers
- NRA 34647 Arthur Ivor Pryce, solicitor and Bangor antiquary: papers
- NRA 32679 Pryse family, baronets, of Gogerddan: estate papers
- NRA 37533 Pryse family, baronets, of Gogerddan: lead mining records
- NRA 35399 Arthur Glyn Prys-Jones, poet: corresp and papers link to online catalogue
- NRA 28837 Pughe family of Helygog, Brithdir: deeds
- NRA 29237 Puleston family, baronets, of Worthenbury: deeds and estate papers link to online catalogue
- NRA 40454 Pwyllgor Datblygu Addysg Gymraeg
- NRA 35979 Keith William Twort Raffan MP: papers
- NRA 38488 William Thomas Rees, 'Alaw Ddu', musician: corresp and music MSS
- NRA 31574 Stuart Rendel, Baron Rendel: business corresp and papers
- NRA 7517 Stuart Rendel, Baron Rendel: corresp and papers
- NRA 38529 James Ednyfed Rhys, 'Ap Nathan', writer: corresp and literary papers
- NRA 34417 Rice family, Barons Dynevor: deeds and papers link to online catalogue
- NRA 34658 Richards family of Caerynwch and Edwards family of Cerrigllwydion: family and estate papers
- NRA 16874 Robert Richards MP: corresp and papers
- NRA 37277 Robert Owen, 'Bob Owen Croesor', antiquary and book collector: corresp and papers
- NRA 35108 Colonel Sir George Fossett Roberts: MS collection rel to Aberystwyth link to online catalogue
- NRA 39292 E Beckwith Roberts, Welshpool: Montgomeryshire petty sessions records
- NRA 38540 Henry Evans Roberts & Co, solicitors, Machynlleth
- NRA 37037 Hugh Roberts, 'Yr Hen Idris', writer: papers
- NRA 16470 John Bryn Roberts MP: personal and family corresp and papers
- NRA 33765 Kate Roberts, novelist, short-story writer and literary journalist: corresp and papers link to online catalogue
- NRA 41974 WJ Roberts, Liberal Party agent: papers rel to the annual assembly at Llandudno 1955
- NRA 40265 Henry Robertson MP, civil engineer and railway pioneer: corresp and papers
- NRA 37954 Robert David Rowland, 'Anthropos', Calvinistic Methodist minister, journalist and poet: corresp and
- NRA 34883 AD Ruck, antiquary: deeds, corresp and papers incl Ruck family of Pennal and Panton family of Plas link to online catalogue
- NRA 33984 Ruthin Lordship: deeds and papers
- NRA 34352 Salusbury family, baronets, of Lleweni: deeds and papers
- NRA 28427 Nassau William Senior, economist: corresp and papers
- NRA 40394 Siop y Jones, Llandysul
- NRA 33982 Robert HG Smallwood, antiquarian: MS collections
- NRA 12100 Somerset family, Dukes of Beaufort: deeds and estate papers
- NRA 12101 Somerset family, Dukes of Beaufort: manorial documents (various counties)
- NRA 37318 South Wales Women's Temperance Union
- NRA 26745 St Asaph diocese
- NRA 28580 St Davids diocese link to online catalogue
- NRA 31114 Stepney family, baronets, of Prendergast: deeds and papers
- NRA 581 Stuart family, Marquesses of Bute: manorial records and estate papers, mainly rel to Glamorgan and
- NRA 35827 Swansea Old Brewery & Davies'(Cardigan) Bonded Stores Ltd link to online catalogue
- NRA 41599 Albert James Sylvester, principal private secretary to David Lloyd George: corresp and papers link to online catalogue
- NRA 7880 Symons family of Mynde Park: family and estate papers
- NRA 30000 Talbot family of Margam and Penrice: family and estate papers
- NRA 38322 Tanybwlch estate, Llanllechid: deeds and papers
- NRA 38593 Thelwall family of Bathafarn Park and Llanbedr Park: deeds and papers
- NRA 41675 Sir Daniel Lleufer Thomas, public servant and historian: corresp and papers
- NRA 41379 David Alfred Thomas, Viscount Rhondda: corresp and papers
- NRA 41954 Thomas George Thomas, Viscount Tonypandy, Speaker of the House of Commons: corresp and papers link to online catalogue
- NRA 34692 Gwyn Thomas, novelist, short-story writer and playwright: literary MSS and papers
- NRA 35840 (Philip) Edward Thomas, poet and prose-writer: literary MSS, diaries and corresp with Helen Thomas
- NRA 37030 Sir Ben Bowen Thomas, public servant and educationalist: corresp and papers
- NRA 34361 John Montgomery Traherne, antiquary: working papers and MS collection
- NRA 15301 Trevecca College: MS collections
- NRA 35400 John Tripp, poet and journalist: corresp and literary MSS link to online catalogue
- NRA 37319 Ty Cenedl
- NRA 39245 Ty-Llwyd estate
- NRA 38411 University College of Wales, Aberystwyth: Students' Representative Council
- NRA 41972 University of Wales, Aberystwyth, Ceramic Archive link to online catalogue
- NRA 40456 Urdd Gobaith Cymru (Welsh League of Youth)
- NRA 28748 Vane-Tempest-Stewart family, Marquesses of Londonderry: Welsh deeds and estate papers
- NRA 40943 Vaughan and Jones families of Tanymanod and Plas Blaenddol: deeds and estate papers
- NRA 11468 Vaughan family, Earls of Lisburne: Crosswood (Trawscoed) estate papers
- NRA 31117 Vaughan family of Courtfield: estate papers
- NRA 40513 Olwen Vaughan: papers, mainly rel to her father Robert Scourfield Mills, adventurer and author call
- NRA 37565 Venables family of Llysdinam: corresp and papers
- NRA 25196 Vivian family, Barons Swansea: family and estate papers
- NRA 31413 Waddington family of Llanover Court: corresp
- NRA 37943 Wales Advisory Body for Local Authority Higher Education link to online catalogue
- NRA 37974 Wales Trade Union Council Cymru
- NRA 33331 Walsh family, Barons Ormathwaite: family and Radnorshire estate papers
- NRA 37542 William Rhys Watkin, Baptist minister: papers and collected MSS link to online catalogue
- NRA 31759 Vernon Phillips Watkins, poet: corresp, literary MSS and papers
- NRA 41684 Harri Webb, poet: corresp and papers link to online catalogue
- NRA 34419 Webley Parry family of Noyadd Trefawr: deeds and papers incl those of Lewes family of Gellydywyll
- NRA 27634 Welsh Agricultural Organisation Society
- NRA 36563 Welsh Army Corps link to online catalogue
- NRA 40490 Welsh Arts Council
- NRA 40923 Welsh Arts Council: MS collections
- NRA 38394 Welsh Charity School, Ashford
- NRA 40399 Welsh Church Commission link to online catalogue
- NRA 28326 Welsh Congregational churches
- NRA 35312 Welsh Film Board (Bwrdd Ffilmiau Cymraeg)
- NRA 37765 Welsh Liberal Party
- NRA 41921 Welsh National Opera Co Ltd link to online catalogue
- NRA 40396 Welsh Plant Breeding Station link to online catalogue
- NRA 40980 Welsh Wesleyan Methodist records
- NRA 35732 Yr Academi Gymreig (The Welsh Academy)
- NRA 38392 Welshpool Borough
- NRA 30537 John Bancroft Willans: Dolforgan estate papers and collected manorial documents
- NRA 37546 William James Mathias, composer, conductor and pianist: corresp and papers incl music MSS
- NRA 39588 John Williams 'Ab Ithel', rector of Llanymawddwy, antiquary and editor: corresp and papers
- NRA 32295 Arthur John Williams MP: corresp and papers
- NRA 39589 Arthur John Williams MP, founder of the National Liberal Club: corresp and papers
- NRA 39600 David James Williams, headmaster of Bethesda County School: corresp and papers
- NRA 39599 David John Williams, local historian and children's writer: corresp and papers link to online catalogue
- NRA 39591 David Pryse Wiliams, 'Brythonydd', Baptist minister and local historian: papers and MS collection
- NRA 35076 Edward Williams, 'Iolo Morganwg', poet and antiquary: corresp
- NRA 35077 Edward Williams, 'Iolo Morganwg', poet and antiquary: corresp and misc papers
- NRA 37212 Edward Williams, 'Iolo Morganwg', poet and antiquary: MS collection
- NRA 37211 Edward Williams, 'Iolo Morganwg', poet and antiquary: MSS and papers
- NRA 40934 Edward Jones Williams, geologist and railway engineer: corresp and papers rel to railways and Welsh
- NRA 36406 Eliseus Williams 'Eifion Wyn', poet: papers
- NRA 38396 Williams family, Acre House, Acrefair: family corresp and papers
- NRA 38558 Williams family, baronets, of Bodelwyddan: deeds and papers
- NRA 34642 Williams family of Aberpergwm: family and estate papers
- NRA 40267 Williams family of Cwmcynfelyn: family and estate papers
- NRA 37158 Williams family of Hafodgaregog, Nanmor: deeds and papers
- NRA 39218 Williams family of Penpont: family and estate papers link to online catalogue
- NRA 38156 (George) Emlyn Williams, playwright and actor: corresp and papers
- NRA 39291 Williams Gittins & Tomley, solicitors, Newtown: Montgomeryshire petty sessions records
- NRA 42068 Grace Williams, composer: music MSS and misc papers
- NRA 26987 Henry Rumsey Williams, solicitor, Caervarfon: business and personal papers
- NRA 34649 Ifor Owain Wynn Williams of Bronwylfa: deeds and papers
- NRA 40533 Isaac Lloyd Williams, lawyer, Lincolns Inn: clients papers
- NRA 39602 John Lloyd Williams, botanist and collector of Welsh folksongs: papers and music MSS
- NRA 40451 Kyffin Williams, painter: corresp and papers
- NRA 26128 Mary Williams, French scholar: corresp and papers link to online catalogue
- NRA 39224 Richard Williams, antiquary and lawyer: deeds
- NRA 39603 Richard Bryn Williams, poet and historian of Patagonia: papers and MS collection link to online catalogue
- NRA 39601 Richard Ellis Williams, Baptist minister: corresp and papers
- NRA 37536 Sir John Williams, obstetrician and president of the National Library of Wales: corresp and collect link to online catalogue
- NRA 35075 Taliesin Williams, 'Taliesen ab Iolo', poet and author: personal and family corresp
- NRA 34636 William Williams, `Gwilym Cyfeiliog', of Bontdolgadfan: family corresp and papers
- NRA 34415 Williams-Drummond family, baronets, of Edwinsford: deeds and estate papers
- NRA 37189 Williams-Wynn family, baronets, of Wynnstay: deeds and papers rel to Lloyd family and Plas-yn-Cefn
- NRA 30545 Williams-Wynn family, baronets, of Wynnstay: family and estate papers link to online catalogue
- NRA 22799 Williams-Wynn family of Coedymaen: corresp and papers
- NRA 30318 Williams-Wynne family of Peniarth: family and estate papers
- NRA 34360 Windsor-Clive family, Earls of Plymouth: deeds
- NRA 34081 Wyndham-Quin family, Earls of Dunraven and Mountearl: manorial records and estate papers
- NRA 11470 Wynn family, baronets, of Gwydir: corresp and papers
- NRA 37118 Wynn family, Barons Newborough: family and estate papers
- NRA 29979 Wynne family of Bodewryd: family and estate papers
- NRA 37217 Wynne family of Coed Coch and Trofarth: deeds and papers
- NRA 38550 Wynne family of Ty Gwyn and New Hall (Plas Wyn), Llansanffraid Glynceiriog: deeds and papers
- NRA 37540 William Watkin Edward Wynne, antiquary: Peniarth MSS collection link to online catalogue
- NRA 39247 Wynne-Edwards family of Plas Nantglyn: family and estate papers link to online catalogue
- NRA 26029 Wynne-Finch family of Voelas and Cefnamlwch: estate papers
- NRA 28695 Yale family of Plas-yn-Yale: deeds and papers
Accessions
These are selected lists of new or additional collections that were acquired by this archive during a specific year. If a date is not displayed there are no accessions for that year.