Jeanne Hamilton Ferguson1
From 9 May 1932, her married name became Sinclair-Lockhart.
- [S37] BP2003 volume 3, page 3632. See link for full details for this source. Hereinafter cited as. [S37]
Sir John Beresford Sinclair-Lockhart of Castle Hill, 13th Bt.1 
He was educated at King’s College, Auckland, New ZealandG.1 He graduated from Sidney Sussex College, Cambridge University, Cambridge, Cambridgeshire, England, with a Bachelor of Engineering (B.E.) (Civil.)1 He graduated from Sidney Sussex College, Cambridge University, Cambridge, Cambridgeshire, England, with a Bachelor of Science (B.Sc.) (Physics.)1 He was a civil engineer at New Zealand.1 He was with the Colonial Administration Service between 1934 and 1963.1 He was awarded the Efficiency Decoration (E.D.)1 He fought in the Second World War.1 He gained the rank of Major in the Royal Artillery.1 He succeeded as the 13th Baronet Sinclair [N.S., 1636] on 15 February 1959.1
Winifred Ray Cavaghan1
From 22 October 1949, her married name became Sinclair-Lockhart.
Sir Muir Edward Sinclair-Lockhart of Castle Hill, 14th Bt.1 
He succeeded as the 14th Baronet Sinclair [N.S., 1636] on 11 March 1970.1
Children of Sir Muir Edward Sinclair-Lockhart of Castle Hill, 14th Bt. and Olga Ann White-Parsons
- Sir Simon John Edward Francis Sinclair-Lockhart of Castle Hill, 15th Bt.+2 b. 22 Jul 1941
- Sara Ann May Sinclair-Lockhart2 b. 13 Nov 1942
Claude Victor White-Parsons1
Child of Claude Victor White-Parsons
Olga Ann White-Parsons1
Olga Ann White-Parsons usually went by her middle name of Ann.1 From 18 May 1940, her married name became Sinclair-Lockhart. She lived in 2003 at Haunui, Feilding, New Zealand.1
Children of Olga Ann White-Parsons and Sir Muir Edward Sinclair-Lockhart of Castle Hill, 14th Bt.
- Sir Simon John Edward Francis Sinclair-Lockhart of Castle Hill, 15th Bt.+2 b. 22 Jul 1941
- Sara Ann May Sinclair-Lockhart2 b. 13 Nov 1942
Sara Ann May Sinclair-Lockhart1
From 1968, her married name became Willcock.
Douglas Brian Willcock1
Child of Douglas Brian Willcock
Nicholas Welcome Willcock1
