Elizabeth Clifton1
Her married name became Knyvett.1
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume III, page 308. Hereinafter cited as The Complete Peerage.
Sir John Knyvett1
He was ancestor of Sir Philip Knyvett, Bt.1
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume III, page 308. Hereinafter cited as The Complete Peerage.
Felicity Anne Yorke1 
From 16 April 1955, her married name became Cooper. She lived in 2003 at Hexton Manor, Hitchin, Hertfordshire, EnglandG.1
Children of Felicity Anne Yorke and James Patrick Ashley Cooper
- Katharine Mary Cooper+2 b. 10 Jun 1956
- Patrick John Cooper+2 b. 19 Oct 1957
- Felicity Cooper+2 b. 17 Feb 1961
- Edward James Cooper+2 b. 8 Jan 1966
- [S37] BP2003 volume 1, page 829. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Sir Patrick Ashley Cooper1 

Sir Patrick Ashley Cooper was born in 1887.3 He married Kathleen Spickett, daughter of James Edward Spickett and Sarah Louisa Davis.3 He died in 1961.3
He lived at Hexton Manor, Hitchin, Hertfordshire, EnglandG.1
Children of Sir Patrick Ashley Cooper and Kathleen Spickett
- James Patrick Ashley Cooper+4 d. 10 Sep 2008
- Diana Mary Ashley Cooper3 b. 1918, d. 1926
- Cynthia Kathleen Ashley Cooper+3 b. 1920, d. c Dec 2017
- Patricia Jane Ashley Cooper+3 b. 1921
- [S37] BP2003 volume 1, page 829. See link for full details for this source. Hereinafter cited as. [S37]
- [S130] Wikipedia, online http;//www.wikipedia.org. Hereinafter cited as Wikipedia.
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
- [S37] BP2003. [S37]
James Patrick Ashley Cooper1 
Children of James Patrick Ashley Cooper and Felicity Anne Yorke
- Katharine Mary Cooper+2 b. 10 Jun 1956
- Patrick John Cooper+2 b. 19 Oct 1957
- Felicity Cooper+2 b. 17 Feb 1961
- Edward James Cooper+2 b. 8 Jan 1966
- [S37] BP2003 volume 1, page 829. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
- [S3512] Katie Foot, “re: Cooper Family,” e-mail message to BENR, 18 January 2009. Hereinafter cited as “re: Cooper Family.”
Patrick John Cooper1
He was educated at Eton College, Windsor, Berkshire, EnglandG.1 He was educated at Trinity Hall, Cambridge University, Cambridge, Cambridgeshire, EnglandG.1
Children of Patrick John Cooper and Belinda Jane Firth
- Christopher Patrick Cooper2 b. 20 Dec 1990
- Thomas James Cooper2 b. 28 Apr 1992
- Amelia Clare Cooper2 b. 7 Dec 1994
Belinda Jane Firth1
From 1989, her married name became Cooper.
Children of Belinda Jane Firth and Patrick John Cooper
- Christopher Patrick Cooper2 b. 20 Dec 1990
- Thomas James Cooper2 b. 28 Apr 1992
- Amelia Clare Cooper2 b. 7 Dec 1994
Christopher Patrick Cooper1
Thomas James Cooper1