Maud Sophie Childers Thompson1 
From 17 May 1912, her married name became St. Clair.
Children of Maud Sophie Childers Thompson and Captain Frederic Cathcart Guy St. Clair
- Enid Joyce St. Clair+2 b. 23 Feb 1913
- Derek Charles St. Clair-Stannard+2 b. 16 Aug 1919, d. 5 Jan 2013
Derek Charles St. Clair-Stannard1 
He was given the name of Derek Charles St. Clair at birth. He was educated at Ottershaw School, Surrey, EnglandG.1 In 1939 his name was legally changed to Derek Charles St. Clair-Stannard by Deed Poll. He gained the rank of Lieutenant in the Royal Navy Volunteer Reserve.1 He fought in the Second World War.1 He was appointed Member, Order of the British Empire (M.B.E.)1 He was with the Foreign Service between 1947 and 1954.1 He was public relations officer for the Royal Agricultural Society between 1955 and 1970.1 He was director of Derek Stannard PR between 1970 and 1985.1 He lived in 2003 at The Priory, 33 Church Street, Godalming, Surrey, England.1
Children of Derek Charles St. Clair-Stannard and Elizbeth Ann Baskett
- Matthew Peter St. Clair+2 b. 2 Jan 1954
- Lucie St. Clair+2 b. 27 Sep 1955
- Sophie Alexandra St. Clair+2 b. 1 Dec 1958
- Josephine Camilla St. Clair+2 b. 9 Nov 1965
Douglas Charles Baskett1
Child of Douglas Charles Baskett
Elizbeth Ann Baskett1
From 4 April 1953, her married name became St. Clair.
Children of Elizbeth Ann Baskett and Derek Charles St. Clair-Stannard
- Matthew Peter St. Clair+2 b. 2 Jan 1954
- Lucie St. Clair+2 b. 27 Sep 1955
- Sophie Alexandra St. Clair+2 b. 1 Dec 1958
- Josephine Camilla St. Clair+2 b. 9 Nov 1965
Matthew Peter St. Clair1
He was educated at Westminster School, Westminster, London, England.1
Children of Matthew Peter St. Clair and Sally Elizabeth Heptinstall
- Guy Roger St. Clair2 b. 1982
- Oliver Simon Charles St. Clair2 b. 1984
- Chloe Elizabeth St. Clair2 b. 1989
Captain R. Heptinstall1
Child of Captain R. Heptinstall
Sally Elizabeth Heptinstall1
From 1981, her married name became St. Clair.
Children of Sally Elizabeth Heptinstall and Matthew Peter St. Clair
- Guy Roger St. Clair2 b. 1982
- Oliver Simon Charles St. Clair2 b. 1984
- Chloe Elizabeth St. Clair2 b. 1989
Guy Roger St. Clair1
Oliver Simon Charles St. Clair1
Chloe Elizabeth St. Clair1