Major Ivor Crosthwaite1
He was awarded the Distinguished Service Order (D.S.O.)1
Children of Major Ivor Crosthwaite and France Mary Agnes Clarke
- Charles Crosthwaite2
- Nicolas James Goland Crosthwaite+1 b. 18 Dec 1948
- [S37] BP2003 volume 1, page 1475. 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.
Nicholas Astor Drexel1
France Mary Agnes Clarke1,2 
She lived at Park Walk, Chelsea, London, England.3 Her married name became Crosthwaite.1 From 11 October 1971, her married name became Sheffield.1
Children of France Mary Agnes Clarke and Major Ivor Crosthwaite
- Charles Crosthwaite2
- Nicolas James Goland Crosthwaite+1 b. 18 Dec 1948
- [S37] BP2003 volume 1, page 1475. 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.
- [S37] BP2003. [S37]
Bradford Hastings Walker1
Children of Bradford Hastings Walker and Pamela Sandra Noreen Drexel
- Andrew Bradford Hastings Walker+2 b. 19 Jan 1968
- James Drexel Walker2 b. 8 Jan 1971
Andrew Bradford Hastings Walker1
Children of Andrew Bradford Hastings Walker and Nicole Castle
- Jordyn Nicole Castle2 b. 8 Apr 1997
- Jackson Avery Castle2 b. 28 Nov 2000
Nicole Castle1
From 10 May 1995, her married name became Walker.1
Children of Nicole Castle and Andrew Bradford Hastings Walker
- Jordyn Nicole Castle2 b. 8 Apr 1997
- Jackson Avery Castle2 b. 28 Nov 2000
Jackson Avery Castle1
Jordyn Nicole Castle1
James Drexel Walker1
William Barraclough Jackson1 
Child of William Barraclough Jackson
- Alma Jackson+1 d. 26 Nov 1925
- [S34] BP1970 page 1805. See link for full details for this source. Hereinafter cited as. [S34]