Catalogue description EWT to Kenworthy and Major King at Knockholt Mar 3 with chart of Knockholt organisation...

EWT to Kenworthy and Major King at Knockholt Mar 3 with chart of Knockholt organisation as determined by EWT, Kenworthy in total charge with Mason I/C FORDE as Deputy to Kenworthy, King I/C GCWS and all Knockholt station support sections; IE to EWT Mar 7 confirming move of German High Command transmitters from Berlin to Meuhlhausen-Eisenach-Erfurt area Feb 27/28; covering note from Gp Capt Jones Mar 1 for BP paper on bombing of German Land-line stations; paper by Jones to Hut 3 staff Mar 7 on value of strategic Sigint, drawing attention to crop of recent BP reporting errors and importance of Sigint to forthcoming Allied crossing of Rhine, 2nd paper by Jones to his staff Mar 9 on value of Ultra if accurately handled, following Allied bridgehead over Rhine; memo by PS Milner-Barry Mar 8re Hut 6 new appointments, HD Fletcher becomes Deputy Head replacing JS Colman who leaves BP for a Colonial Office mission abroad, list of Section Heads within Hut 6, memo by Milner-Barry on Hut 6 Liaison Committee; extracts from report by Hooper of BP Mar 10 after visiting India and SEAC Organisation, possibly as prelude to EWT's visit; 5 pages of Axis codes being exploited by MS filed as Mar 4 1945 although data contained would suggest 1943 as more likely year: GPS to AD (WTC) Mar 4 on GP requirements for Shenley, also memo from GPS to DD (MW) and DD 1 protesting at continuing low priority of GP cover, includes chart illustrating some 30% drop in GP cover over past 2 years; AD (WTC) to DD (Y) Mar 9 re expansion of Shenley for GP cover, DD (Y) to EWT Mar 13 re printer intercept in 21 AG, male operators to be released and replaced by ATS from Kedleston printer teams; proposed new distribution list for BP new CX/MSS abbreviations report Mar 13; distribution list for GPS Roulette III Ultra/Zip/Bat reports Mar 13; new GPS procedures for circulation of GP decodes Mar 11; Major Webster of GPS to Dr Palmer Mar 13 with chart of GP Wehrwolf Organisations; AS to DDI 4 Mar 1 with comments by RAF Field Units on reception of Canterbury Broadcast; Met Section notes for w.e. Mar 3 and 10, German met code recovered for period Mar 4-27 so supply of German observations for occupied Europe wood be good unless German met stations bombed during Allied air raid, copy of this report to HQBC; AS to Wing Cdr Felkin of ADI (K) Mar 12 re ADI (K) report No 192/1945 on German Met Service, asking for more details of listed German met publications; BP paper Mar 13 congratulating Chicksands on intercept results since GAF major comms change of Feb 1; AT 4 to AS Mar 15 requesting copies of AS Periodical Survey of GAF Night Defensive Activity for fighter Interception Development Sqn of Central Fighter Establishment; BP to Maj Gen Taylor at SHAEF Mar 2 re Gen Spaatz's request for extra copy of BP STARK report, only 3 copies produced, for Eisenhower, Tedder and Spaatz respectively, BP opposed to producing a 4th copy just because SHAEF HQ now split, Spaatz must see Tedder's copy at Rheims, USSTAF London Rear HQ to BP Mar 2 re STARK for Spatz; Cols Scott and Gore-Brown indoctrinate Col D Hoysted of Sigs Security SHAEFF Forward Mar 2; MI-8 to GSI (s) of 21 AG Col Winterbotham Mar 3 requesting permission for Lt Col Wallace of BP and Kenworthy of Knockholt to visit 21 AG Mar 9; EWT to Brig Williams Mar 3 re proposed visit to W Front by Maj Robert Walker of SSA Washington, trip to include 21 AG, ETA Paris Mar 8 followed by trip to Brussels; 1 SWG Advanced to BP re printer intercept trials and Brown at 1 SIC to BP, Mar 5; Scott at SHAEF to Dudley-Smith at BP Mar 6 re German Sigint exploitation of Allied comms, Bicher at SHAEF Rear HQ Versailles to Dudley-Smith Mar 6; Scott to AD (WTC) Mar 6 re German railways' comms being liable to German exploitation; DDI 4 order Mar 6 to RAF Cheadle, 364 and 365 WUs and BP AS re Sigint support to HQ 80 Wing, now on Continent to jam German comms; Brown at 21 AG to DD 1 Mar 7 re indoctrination of 7 officers at 1 SIC; Brown to Wing Cdr Garrett of BP AS Mar 7 re cover of Flak Advice traffic, 1 SIC must drop in 10 days' time, reply Mar 14; Scott to BP Comms Section Mar 7 re new US comms equipment suitable for Sigint channels; 6th US AG to Gp Capt Jones Mar 8 re embargo on telephone refs to Ultra in any form; Brown at 1 SIC to Major Evans of GPS Mar 10, Penny from 1 SIC on leave in UK, request fro him to visit GPS at BP; BP to SHAEF Rear HQ from Chairman LSB to Chairman SHAEF SB Mar 10 re Knopper visit to Hampstead for insight Japanese TA, Baldock to see field section under training for FE; BP from Chairman SB Mar 13 to named officers in SHAEF re amendment to Allied document on exploitation of German Sigint sites after capture, updated Mar 15; Col O'Connor in Washington to EWT Mar 4 re EWT's forthcoming visit to CBB, O'Connor to EWT Mar 7, EWT will need to allocate at least 5 days in Washington when returning from FE; EWT to O'Connor Mar 11 requesting confirmation of clearance for Hinsley at CBB, cleared by G-2; DNI to CBNIET Mar 8 re impending visit to FE, including Colombo and Australia, by DNI, EWT, Hinsley of BP NS and Cdr Loehnis of Admiralty; Cdr IC to Keith at Colombo Mar 8 re Lt Pickup's attendance at Anderson Conference if he has completed Hollerith investigation at Pearl Harbour in time; frequent technical exchanges on Japanese codes between BP NS's integree in OP-20-G Bodsworth and Alexander and Foss in NS; Lt Cdr CJB Chalkley, RNVR, detached to OP-20-G in Washington, to EWT Mar 3 re Japanese translations for BP, BP to Chalkley Mar 7, 4 copies of his letters to BP required in future, 3 of which for NS; SLU Washington to BP Mar 3, talk in Washington of various C-in-C Pac Flt Depts moving to Advanced HQ in Guam, Bodsworth hears of IBM equipment being sent to Guam; BAD Washington holding 5 Typex machines for Sigint service, BP requests they be shipped to Brisbane for S/L Burley; BP to Washington Mar 1, BP requires 24 copies of US Japanese working aid, 19 for BP, 5 for HMS Anderson; BP NS 1J to CSO BP Mar 2 with details of naval raw material exchanged between BP and Washington, sometimes using BSC NY as relay; O'Connor to Chairman SB listing 75 names of British JSM personnel now cleared for Ultra, increase of 33 since Nov 1943; BP exchanges with NEGAT Washington, BP asks about messages with Tokyo working to Berlin and Moscow Mar 4; Washington SLU to BP Mar 4 requesting details of Colombo's unique intercept, BP liaison with HMS Anderson Colombo, tells Anderson Mar 2 that Burnett would leave by air around Mar 5, BP to Anderson Mar 15 re Colombo-UK cables; FRUMEL sends signal from CBNIET Mar 9 asking who in Admiralty was on list cleared to receive Manx Japanese met Sigint; HMS Anderson to all BRUSA stations Mar 1 answering FRUPAC signal; C-inC EI to Admiralty Mar 2 re Sigint team proposed by Admiralty on Feb 27, Admiralty replies Mar 12 with list of RN officers that had left UK for FE; DNI to CBNIET Mar 9 re details of RN Sigint personnel leaving for FE; DD(Y) to EWT Mar 3 re WO support for Ultra history; DMI, DNI and ACAS (I) to Chairman SB Mar 3-9 re writing of Ultra history at BP