Hon. Seton Robert de la Poer Horsley-Beresford1 
He gained the rank of Lieutenant in the 4th Battalion, Sherwood Foresters.1 He was a war correspondent during the Boer War.1
- [S37] BP2003 volume 1, page 1062. See link for full details for this source. Hereinafter cited as. [S37]
Delia Dorothy O’Sullivan1
Her married name became Huntington.2 Her married name became Lucas.2 From 1899, her married name became Horsley-Beresford.1
Daniel John O’Sullivan1
Child of Daniel John O’Sullivan
- [S37] BP2003 volume 1, page 1062. See link for full details for this source. Hereinafter cited as. [S37]
Joan Rosemary Graves-Sawle1
From 28 June 1915, her married name became Horsley-Beresford.1 From 28 February 1929, her married name became Cobbold. From 1932, her married name became Sawle.1
- [S37] BP2003 volume 1, page 1062. See link for full details for this source. Hereinafter cited as. [S37]
Rear-Admiral Sir Charles John Graves-Sawle, 4th Bt.1
He was appointed Member, Royal Victorian Order (M.V.O.)1 He gained the title of 4th Baronet Sawle.
Children of Rear-Admiral Sir Charles John Graves-Sawle, 4th Bt.
- [S37] BP2003 volume 1, page 1062. See link for full details for this source. Hereinafter cited as. [S37]
- [S7529] WikiTree, online http://www.wikitree.com/. Hereinafter cited as WikiTree.
- [S35] BLG1965 volume 1, page 227. See link for full details for this source. Hereinafter cited as. [S35]
Colonel Ralph Patteson Sawle1 
He was given the name of Ralph Patterson Cobbold at birth.1 He was educated at Eton College, Windsor, Berkshire, England.4 He gained the rank of 2nd Lieutenant in 1888 in the King’s Royal Rifle Corps.2 He gained the rank of Lieutenant in 1890.2 He fought in the Boer War.2 He was awarded the Distinguished Service Order (D.S.O.)1 In 1932 his name was legally changed to Ralph Patterson Sawle by Royal Licence.1 He lived at Penrice, St. Austell, Cornwall, EnglandG.5
Child of Colonel Ralph Patteson Sawle and Minnie Diana Pitt
- Ralph Hamilton Cobbold+5 b. 22 May 1906, d. 1987
- [S37] BP2003 volume 1, page 1062. See link for full details for this source. Hereinafter cited as. [S37]
- [S130] Wikipedia, online http;//www.wikipedia.org. Hereinafter cited as Wikipedia.
- [S8998] Celia Clarkson, “re: Cobbold Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 4 May 2020. Hereinafter cited as “re: Cobbold Family.”
- [S8566] The Cobbold Family History Trust, online https://www.cobboldfht.com/. Hereinafter cited as Cobbold Family History Trust.
- [S37] BP2003. [S37]
Hon. Henry William Walter Horsley-Beresford1 
He gained the rank of Lieutenant in the 13th Hussars.1 He gained the rank of Captain in the 4th Battalion, Sherwood Foresters.1 He fought in the Boer War between 1901 and 1902.1 He fought in the First World War.1
- [S37] BP2003 volume 1, page 1062. See link for full details for this source. Hereinafter cited as. [S37]
Constance (?)
From before 1904, her married name became Levenston.1 From 6 October 1904, her married name became Horsley-Beresford.1
- [S37] BP2003 volume 1, page 1062. See link for full details for this source. Hereinafter cited as. [S37]
John Askwith1
Child of John Askwith
- William Askwith+1 b. 1680, d. Nov 1723
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 15. Hereinafter cited as The New Extinct Peerage.
Hon. William Arthur de la Poer Horsley-Beresford1 
He gained the rank of Temporary Lieutenant in the Royal Army Service Corps.1 He fought in the Boer War between 1899 and 1900.1
Children of Hon. William Arthur de la Poer Horsley-Beresford and Florence Miller
- Audrey Catherine de la Poer Horsley-Beresford1 d. 24 May 1922
- Sheila Kathleen de la Poer Horsley-Beresford1 d. 31 Mar 1913
- Charles William Marcus de la Poer Horsley-Beresford1 b. 30 Nov 1902, d. 11 Feb 1968
- George Graham de la Poer Horsley-Beresford+1 b. 28 Oct 1903, d. 1974
- John Duncan de la Poer Horsley-Beresford+1 b. 24 Nov 1904, d. 24 Jan 1998
Children of Hon. William Arthur de la Poer Horsley-Beresford and Laura Coventry
- Hazel Horsley-Beresford+1 b. 1920
- Patrick George Horsley-Beresford+1 b. 9 Nov 1924
Children of Hon. William Arthur de la Poer Horsley-Beresford and Ida Kaye
- Maureen Horsley-Beresford1 b. 1942, d. 2000
- Peter Horsley-Beresford+1 b. 1945
