Lettice Rose Cheney1
Jessie Violet Betty Gillam1
From 27 May 1939, her married name became Onslow. From 7 July 1951, her married name became Congreve.1
- [S37] BP2003 volume 2, page 3022. See link for full details for this source. Hereinafter cited as. [S37]
Thomas Onslow1

He was educated at Magdalene College, Cambridge University, Cambridge, Cambridgeshire, England.1 He fought in the First World War.1 He gained the rank of 2nd Lieutenant in the King Shropshire’s Light Infantry.1
Nicolas Nabokov1
- [S7038] Sergei Nabokov, “re: Nabokov Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 5 March 2014. Hereinafter cited as “re: Nabokov Family.”
William Agar1
Child of William Agar
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
John H. Serpell1 
- [S4567] Bill Norton, “re: Pitman Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 6 April 2010 and 19 April 2011. Hereinafter cited as “re: Pitman Family.”
Roger Cranley Seafield Onslow1
He was educated at Christ’s Hospital, London, England.1 He lived in 2003 at 7 Links View, Baunton Lane, Cirencester, Gloucestershire, England.1
Children of Roger Cranley Seafield Onslow and Eileen Margaret Barnard
- Susan Helen Onslow2 b. 21 Mar 1965
- Clare Louise Onslow+2 b. 18 Feb 1967
James Archibald Joseph Barnard1
Child of James Archibald Joseph Barnard
Eileen Margaret Barnard1
From 17 October 1959, her married name became Onslow.
Children of Eileen Margaret Barnard and Roger Cranley Seafield Onslow
- Susan Helen Onslow2 b. 21 Mar 1965
- Clare Louise Onslow+2 b. 18 Feb 1967
Susan Helen Onslow1
From 1990, her married name became Tattersall.
