Edward Cope Gem1 
Child of Edward Cope Gem and Mary Augusta Chamberlain
- Muriel Campbell Gem1 b. 1881, d. 1889
- [S1322] David Arathoon, “re: Acheson Family and Campbell Family,” e-mail message to British and European Nobility Register, 8 April 2005 – 14 July 2006. Hereinafter cited as “re: Acheson Family and Campbell Family.”
- [S3961] Gus Gem, “re: Gem Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 7 September 2009. Hereinafter cited as “re: Gem Family.”
Muriel Campbell Gem1 
- [S1322] David Arathoon, “re: Acheson Family and Campbell Family,” e-mail message to British and European Nobility Register, 8 April 2005 – 14 July 2006. Hereinafter cited as “re: Acheson Family and Campbell Family.”
Donryn Clement1
From 5 April 1997, her married name became Dewar.1
Child of Donryn Clement and Hon. Alexander John Edward Dewar
- James Alexander Thomas Dewar1 b. 5 Jul 2000
- [S37] BP2003 volume 1, page 1476. See link for full details for this source. Hereinafter cited as. [S37]
Graham Clement1
Child of Graham Clement
- [S37] BP2003 volume 1, page 1476. See link for full details for this source. Hereinafter cited as. [S37]
James Alexander Thomas Dewar1
- [S37] BP2003 volume 1, page 1476. See link for full details for this source. Hereinafter cited as. [S37]
Adam Humphrey Drummond, 17th Baron Strange1
He was educated at Eton College, Windsor, Berkshire, England.2 He was educated at Royal Military Academy, Sandhurst, Berkshire, England.2 He gained the rank of Major in the Grenadier Guards.2 He succeeded as the 17th Baron Strange [E., 1628] on 11 March 2005.
Children of Adam Humphrey Drummond, 17th Baron Strange and Hon. Mary Emma Jeronima Dewar
- Hon. Sophia Frances Drummond2 b. 19 Mar 1991
- Hon. John Adam Humphrey Drummond2 b. 3 Nov 1992
- [S37] BP2003 volume 1, page 1476. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S4923] Catherine Herdman, “re: Drummond Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 27 September 2010. Hereinafter cited as “re: Drummond Family.”
Hon. John Adam Humphrey Drummond1
- [S37] BP2003 volume 3, page 3770. See link for full details for this source. Hereinafter cited as. [S37]
Hon. Sophia Frances Drummond1
From 29 September 2018, her married name became Bradford.2
Philippe el Khazen1
Child of Philippe el Khazen and Hon. Miranda Phoebe Dewar
- Zelfa Elisabeth el Khazen2 b. 16 Dec 2003
- [S37] BP2003 volume 1, page 1476. See link for full details for this source. Hereinafter cited as. [S37]
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Clovis el Khazen1
Child of Clovis el Khazen
- [S37] BP2003 volume 1, page 1476. See link for full details for this source. Hereinafter cited as. [S37]