James Watt Gibson-Watt1 
He was given the name of James Watt Gibson at birth.1 He was given the name of James Watt Gibson-Watt at birth by Royal Licence.1 He held the office of High Sheriff of Radnorshire. He held the office of Deputy Lieutenant (D.L.) of Radnorshire.1 He held the office of Justice of the Peace (J.P.) for Radnorshire.1 He also had three daughters.1
Child of James Watt Gibson-Watt and Emma Hoey
- Major James Miller Gibson-Watt+2 b. 6 Sep 1875, d. 4 Aug 1929
Emma Hoey1
From 17 November 1874, her married name became Gibson-Watt.1
Child of Emma Hoey and James Watt Gibson-Watt
- Major James Miller Gibson-Watt+2 b. 6 Sep 1875, d. 4 Aug 1929
Major James Miller Gibson-Watt1 
He was educated at Eton College, Windsor, Berkshire, EnglandG.1 He held the office of Justice of the Peace (J.P.) for Radnorshire.1 He held the office of High Sheriff of Radnorshire.1 He held the office of Vice-Lord-Lieutenant of Hampshire.1 He lived at Doldowlod, Radnorshire, WalesG.3 He had one other son and two daughters.1
Children of Major James Miller Gibson-Watt and Marjorie Adela Ricardo
- Ann Verity Gibson-Watt+ b. 17 Feb 1912, d. 1988
- Patricia Mary Adela Gibson-Watt+3 b. 17 Mar 1915, d. 12 Nov 2003
- James David Gibson-Watt, Baron Gibson-Watt+2 b. 11 Sep 1918, d. 7 Feb 2002
- Andrew James Gibson-Watt4 b. 25 Jul 1925, d. 25 Mar 2006
- [S8] BP1999 volume 1, page 1139. See link for full details for this source. Hereinafter cited as. [S8]
- [S8] BP1999. [S8]
- [S37] BP2003 volume 1, page 554. See link for full details for this source. Hereinafter cited as. [S37]
- [S203] Announcements, The Times, London, U.K., 29 March 2006. Hereinafter cited as The Times.
Lt.-Col. Henry George Ricardo1
He was awarded the Distinguished Service Order (D.S.O.)2 He gained the rank of Lieutenant-Colonel in the Royal Artillery.2 He held the office of Justice of the Peace (J.P.)1 He lived at Gatcombe Park, Gloucestershire, EnglandG.3 He held the office of Deputy Lieutenant (D.L.)1
Child of Lt.-Col. Henry George Ricardo and Adela Cobbold
- [S203] Announcements, The Times, London, U.K., 29 March 2006. Hereinafter cited as The Times.
- [S37] BP2003 volume 2, page 2846. See link for full details for this source. Hereinafter cited as. [S37]
- [S8] BP1999 volume 1, page 1139. See link for full details for this source. Hereinafter cited as. [S8]
- [S8] BP1999. [S8]
Marjorie Adela Ricardo1
She held the office of Justice of the Peace (J.P.)3 She was appointed Member, Order of the British Empire (M.B.E.)3 From 20 April 1911, her married name became Gibson-Watt.
Children of Marjorie Adela Ricardo and Major James Miller Gibson-Watt
- Ann Verity Gibson-Watt+ b. 17 Feb 1912, d. 1988
- Patricia Mary Adela Gibson-Watt+ b. 17 Mar 1915, d. 12 Nov 2003
- James David Gibson-Watt, Baron Gibson-Watt+2 b. 11 Sep 1918, d. 7 Feb 2002
- Andrew James Gibson-Watt1 b. 25 Jul 1925, d. 25 Mar 2006
Enid Colleton1 
Her married name became Ravenhill.1
Children of Enid Colleton and Captain Montagu Hamer Ravenhill
- Lorna Althea Ravenhill+1 d. 9 Apr 1948
- Major Richard Archer Colleton Ravenhill1 b. 2 Feb 1917
Sir Robert Colleton1
Child of Sir Robert Colleton
- Enid Colleton+1 b. 1889
Lucile Morin1
From 1964, her married name became Gillmore.1 After her marriage, Lucile Morin was styled as Baroness Gillmore of Thamesfield on 1 January 1996.
Children of Lucile Morin and David Howe Gillmore, Baron Gillmore of Thamesfield
- Hon. Julian Gillmore2 b. 1967
- Hon. Paul Gillmore2 b. 1970
Hon. Julian Gillmore1