John Robert Kilgour Sinclair, 2nd Baron Sinclair of Cleeve1
He was educated at Winchester College, Winchester, Hampshire, England.1 He was educated at Royal Military College, Sandhurst, Berkshire, England.1 He gained the rank of Lieutenant in 1939 in the Queen’s Own Cameron Highlanders.1 He fought in the Second World War, where he was mentioned in dispatches.1 He gained the rank of Captain in 1946.1 He gained the rank of Major in 1951.1 He was appointed Member, Order of the British Empire (M.B.E.) in 1954.1 He was GSO(2), War Office in 1957.1 He gained the rank of Lieutenant-Colonel in 1960.1 He was U.K. Military Attaché to Leopoldville, Congo between 1960 and 1963.1 He was appointed Officer, Order of the British Empire (O.B.E.) in 1963.1 He was Military Assistant to Deputy SACEUR SHAPE between 1964 and 1967.1 He was Military Assistant to MOD between 1967 and 1969.1 He succeeded as the 2nd Baron Sinclair of Cleeve, of Cleeve, co. Somerset [U.K., 1957] on 4 March 1979.1
Children of John Robert Kilgour Sinclair, 2nd Baron Sinclair of Cleeve and Patricia Hellyer
- Hon. Juliet Sinclair2 b. 16 Oct 1951
- John Lawrence Robert Sinclair, 3rd Baron Sinclair of Cleeve2 b. 6 Jan 1953
- Hon. Jane Sinclair+2 b. 13 Jul 1955
David Barclay Sinclair1

He was educated at Winchester College, Winchester, Hampshire, England.1 He gained the rank of Lieutenant in the 51st Highland Division, Reconnaissance Corps.1 He fought in the Second World War.1
Lawrence Hellyer1
Child of Lawrence Hellyer
- Patricia Hellyer+2 d. 4 Sep 2002
Patricia Hellyer1 
From 12 April 1950, her married name became Sinclair. After her marriage, Patricia Hellyer was styled as Baroness Sinclair of Cleeve on 4 March 1979.
Children of Patricia Hellyer and John Robert Kilgour Sinclair, 2nd Baron Sinclair of Cleeve
- Hon. Juliet Sinclair2 b. 16 Oct 1951
- John Lawrence Robert Sinclair, 3rd Baron Sinclair of Cleeve2 b. 6 Jan 1953
- Hon. Jane Sinclair+2 b. 13 Jul 1955
- [S37] BP2003 volume 3, page 3630. 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.
Hon. Juliet Sinclair1
From 1 June 1983, her married name became Wallis.
A. Philip Wallis1
Hon. Jane Sinclair1
From 17 April 1982, her married name became Holliday. She lived in 2003 at Larkfield, Hawstead, Suffolk, England.1
Children of Hon. Jane Sinclair and Robert Anthony John Holliday
- James Robert Sinclair Holliday2 b. 1984
- Fiona Jane Holliday2 b. 1987
Robert Anthony John Holliday1
Children of Robert Anthony John Holliday and Hon. Jane Sinclair
- James Robert Sinclair Holliday2 b. 1984
- Fiona Jane Holliday2 b. 1987
