The family's papers were deposited with the Record Office in 1956 (accession 148).
The collection was listed in 1970-71 with THN or THORN references. Some estate maps had by then been transferred to the Map collection (in 1967-68) and given supplementary accession numbers, so these were omitted from the catalogue.
The collection is rich in deeds and estate papers from the 18th and 19th centuries.
. For more details please consult the Thornhill catalogue in the searchroom.
Administrative / biographical background:
The Thornhill family came from Fixby in Yorkshire, and moved to Diddington about 1730. Besides having estates in Huntingdonshire, Offord Darcy, Southoe, Duloe and others, they held property in Cambridgeshire at Boxworth, Lincolnshire at Dowdyke Hall, and London in Bread Street, Holloway and Angel Islington. Members of the family were rectors of Offord Darcy and Boxworth, and High Sheriffs of the county. Noel Thornhill died without issue in 1956