Edith Fanny Onslow1
From 31 January 1882, her married name became Curtis.
Child of Edith Fanny Onslow and Charles Constable Curtis
- Marjorie Elspeth Constable Curtis+ d. 1976
- [S37] BP2003 volume 2, page 3018. See link for full details for this source. Hereinafter cited as. [S37]
Anthony Haig-Thomas1
Children of Anthony Haig-Thomas and Julia Anne Wilkinson
- Rose Haig-Thomas1
- Hannah Maud Haig-Thomas+1 b. 7 May 1969
- Alexander Anthony Haig-Thomas+1 b. 28 May 1972
- Edward David Haig-Thomas+1 b. 28 May 1972
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Julia Anne Wilkinson1
From circa 1968, her married name became Haig-Thomas.1
Children of Julia Anne Wilkinson and Anthony Haig-Thomas
- Rose Haig-Thomas1
- Hannah Maud Haig-Thomas+1 b. 7 May 1969
- Alexander Anthony Haig-Thomas+1 b. 28 May 1972
- Edward David Haig-Thomas+1 b. 28 May 1972
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Lt.-Col. Michael Wilkinson1
Child of Lt.-Col. Michael Wilkinson
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Alexander Anthony Haig-Thomas1 
Children of Alexander Anthony Haig-Thomas and Dawn Hartley
- Lotte Freya Haig-Thomas1 b. 17 Feb 2009
- Edward Anthony Haig-Thomas1 b. 24 Nov 2010
- Samuel David Haig-Thomas1 b. 24 Nov 2010
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Edward David Haig-Thomas1 
Children of Edward David Haig-Thomas and Sophie Anne Rose Hughes-Onslow
- Flora Antoinette Haig-Thomas1 b. 2 Apr 2012
- James Anthony Haig-Thomas1 b. 22 May 2013
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Hannah Maud Haig-Thomas1,2
From 1 June 1991, her married name became Sykes.2
Children of Hannah Maud Haig-Thomas and Jonathan Sykes
- Rosanna Sykes2 b. 13 Oct 1995
- Joseph Sykes2 b. 31 Mar 1999
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
- [S8656] Jonathan Sykes, “re: Sykes Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 31 October 2018. Hereinafter cited as “re: Sykes Family.”
Sophie Anne Rose Hughes-Onslow1
Her married name became Haig-Thomas.1
Children of Sophie Anne Rose Hughes-Onslow and Edward David Haig-Thomas
- Flora Antoinette Haig-Thomas1 b. 2 Apr 2012
- James Anthony Haig-Thomas1 b. 22 May 2013
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
- [S37] BP2003 volume 2, page 3016. See link for full details for this source. Hereinafter cited as. [S37]
Denzil James Hughes-Onslow1 
He was educated at Ampleforth College, Ampleforth, Yorkshire, England.2 He gained the rank of 2nd Lieutenant in the Royal Armoured Corps.2 He lived in 2003 at The Old Bake House, The Green, Culworth, Oxfordshire, England.1,2
Child of Denzil James Hughes-Onslow and Chloë de Vic
- Sophie Anne Rose Hughes-Onslow+1 b. 10 Oct 1974
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
- [S37] BP2003 volume 2, page 3016. See link for full details for this source. Hereinafter cited as. [S37]
- [S8824] Old Amplefordian Obituaries, online http://www.ampleforthjournal.org. Hereinafter cited as Old Amplefordian Obituaries.
Flora Antoinette Haig-Thomas1
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.