Elma Elizabeth Williams1
From 1 November 1969, her married name became Sinclair.
Children of Elma Elizabeth Williams and Ian Alexander Charles Sinclair
- Andrew George Sinclair2 b. 1970
- John Charles Sinclair2 b. 1972
- Elizabeth Beatrice Sinclair2 b. 1974
Andrew George Sinclair1
John Charles Sinclair1
Elizabeth Beatrice Sinclair1
Roderick John Sinclair1
He was educated at Gordonstoun School, Elgin, Morayshire, Scotland.1 He gained the rank of 2nd Lieutenant in the Scots Guards.1 He lived in 2003 at Downgate Farm, Petersfield, Hampshire, England.1
Children of Roderick John Sinclair and Sarah Margaret Dolphin
- Natasha Esmé Sinclair+3 b. 1981
- James Alexander Sinclair3 b. 1984
- [S37] BP2003 volume 3, page 3903. See link for full details for this source. Hereinafter cited as. [S37]
- [S4567] Bill Norton, “re: Pitman Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 6 April 2010 and 19 April 2011. Hereinafter cited as “re: Pitman Family.”
- [S37] BP2003. [S37]
Rt. Hon. Lewis John Edwards1 
He was appointed Officer, Order of the British Empire (O.B.E.)1 He held the office of Member of Parliament (M.P.)1 He was appointed Privy Counsellor (P.C.)2
Child of Rt. Hon. Lewis John Edwards and Dorothy May Watson
- Valerie Hope Edwards+1 b. 1937, d. 2003
Lucinda Mary Smith1
From 1970, her married name became Sinclair.
James Alexander Sinclair1
Natasha Esmé Sinclair1
From 2012, her married name became Ropner.3
Children of Natasha Esmé Sinclair and Sir Henry John William Ropner, 3rd Bt.
- [S37] BP2003 volume 3, page 3903. 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.
Jean Esme Sinclair1
From 6 May 1961, her married name became Seagrim. She lived in 2003 at Hill Farm, Pulborough, Sussex, England.1
Children of Jean Esme Sinclair and Christopher Bruce Seagrim
- Victoria Esmé Seagrim+2 b. 18 Jun 1962
- John Christopher Seagrim+2 b. 22 Feb 1965