James Steuart Macnaghten1 
He was educated at Eton College, Windsor, Berkshire, England.1 He graduated from Christ Church, Oxford University, Oxford, Oxfordshire, England, in 1937 with a Master of Arts (M.A.)1 He gained the rank of Major in the Royal Artillery.1 He was with ICI after 1949.1
Susan May Macnaghten1 
From 3 October 1936, her married name became Oppenheim.
Children of Susan May Macnaghten and Sir Duncan Morris Oppenheim
- Nicholas Antony Oppenheim+2 b. 18 Jan 1940
- Sarah Jane Oppenheim+2 b. 14 Nov 1942
Watkin Oppenheim1
Child of Watkin Oppenheim
- Sir Duncan Morris Oppenheim+2 d. 5 Jan 2003
Sir Duncan Morris Oppenheim1 
He was registered as a ARCA.1
Children of Sir Duncan Morris Oppenheim and Susan May Macnaghten
- Nicholas Antony Oppenheim+2 b. 18 Jan 1940
- Sarah Jane Oppenheim+2 b. 14 Nov 1942
Henrietta Eyre1
Her married name became Knight.1
- [S6969] Valerie Oxley, “re: Knight Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 8 January 2014. Hereinafter cited as “re: Knight Family.”
Thomas William Smeddle1
Sarah Jane Oppenheim1
She was (an unknown value) at Courtauld Institute of Art, The Strand, London, EnglandG.1 From 1964, her married name became Whitfield.
Children of Sarah Jane Oppenheim and Clovis Whitfield
- Saskia Whitfield2 b. 29 May 1967
- Sophie Whitfield2 b. 15 Feb 1970
Clovis Whitfield1
Children of Clovis Whitfield and Sarah Jane Oppenheim
- Saskia Whitfield2 b. 29 May 1967
- Sophie Whitfield2 b. 15 Feb 1970
Saskia Whitfield1
Sophie Whitfield1
