Hon. Jonathan James Lewin1 
He was educated at Merchant Taylors’ School, London, EnglandG.1 He graduated from Trinity College, Cambridge University, Cambridge, Cambridgeshire, EnglandG, with a Bachelor of Arts (B.A.)1 A journalist.1
Child of Hon. Jonathan James Lewin and Madeleine Marsh
- Joshua Lewin3 b. 1991
Madeleine Marsh1,2
From 1990, her married name became Lewin.
Child of Madeleine Marsh and Hon. Jonathan James Lewin
- Joshua Lewin2 b. 1991
Hon. Susan Lewin1
From 1969, her married name became Roe. She was appointed Officer, Order of the British Empire (O.B.E.) in 2000.3
Children of Hon. Susan Lewin and Peter Roe
- Emily Roe2 b. 1975
- Jessica Roe2 b. 1982
Peter Roe1
Children of Peter Roe and Hon. Susan Lewin
- Emily Roe3 b. 1975
- Jessica Roe3 b. 1982
E. H. Lewin1 
Child of E. H. Lewin
- Admiral Terence Thornton Lewin, Baron Lewin+2 b. 19 Nov 1920, d. 23 Jan 1999
Albert Parker1
Child of Albert Parker
- Barbara Adamson Parker+1 b. 30 Apr 1926, d. 22 Jul 2015
- [S8] BP1999 volume 2, page 1774. See link for full details for this source. Hereinafter cited as. [S8]
Hildegarde Marie Edle von Chavanne1 
From 6 May 1925, her married name became Steeb.1
Children of Hildegarde Marie Edle von Chavanne and Rudolf Freiherr Steeb
- Wolfgang Freiherr Steeb+1 b. 15 Jun 1926
- Johannes-Evangelist Georg Freiherr Steeb+1 b. 25 Jul 1927, d. 3 Aug 2007
- Alice Freiin von Steeb+1 b. 30 Sep 1931