Karl Wilhelm Wolfgang von Donop1 
- [S6448] Bram Sonneveld, “re: Oppenheimer Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 27 November 2012. Hereinafter cited as “re: Oppenheimer Family.”
Albrecht Wilhelm Carl Weisbrod1 
- [S6448] Bram Sonneveld, “re: Oppenheimer Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 27 November 2012. Hereinafter cited as “re: Oppenheimer Family.”
Felicity M. R. Coutts Donald1 
- [S466] Notices, The Telegraph, London, UK. Hereinafter cited as The Telegraph.
Frederick Schon1
Child of Frederick Schon
- Frank Schon, Baron Schon1 b. 18 May 1912, d. 7 Jan 1995
- [S212] Obituaries, The Independent, London, U.K.. Hereinafter cited as The Independent.
Gertrude Secher1 
From 1933, her married name became Schon.1
- [S212] Obituaries, The Independent, London, U.K.. Hereinafter cited as The Independent.
Thomas Richard James Gascoyne-Cecil1
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Roger Brett Asplin1 
Child of Roger Brett Asplin
- Alexander Jonas Brett Asplin+1 b. 1938, d. 2003
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Charles Asplin1 
He lived at Little Burstead, Essex, England.1
Children of Charles Asplin and Edith Marion Brett
- Roger Brett Asplin+1 b. 1904
- Marion Betty Asplin+1 b. 1909, d. Oct 2018
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Edith Marion Brett1 
Her married name became Asplin.1
Children of Edith Marion Brett and Charles Asplin
- Roger Brett Asplin+1 b. 1904
- Marion Betty Asplin+1 b. 1909, d. Oct 2018
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Marion Betty Asplin1 
From 1937, her married name became Grazebrook.1
Children of Marion Betty Asplin and Brigadier Tom Neville Grazebrook
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
