Daniel Montague Hardy1
Child of Daniel Montague Hardy
Gladys Hardy1
Her married name became Galie.2 From 4 February 1937, her married name became Garthwaite.1
Child of Gladys Hardy and Sir William Garthwaite, 1st Bt.
- Michael William Gladwyn Garthwaite2 b. 21 Jul 1937
Michael William Gladwyn Garthwaite1
He was educated in 1955 at Aiglon College, Chesières-Villars, Switzerland.3 He was educated at Trinity College School, Port Hope, Ontario, CanadaG.1
- [S37] BP2003 volume 2, page 1527. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S8935] Anonymous, “re: College,” family provided evidence then verified by subsequent research and verification by BENR (101053), 17 Feb 2020. Hereinafter cited as “re: College.”
Charles Hewitt Smith1 
He was educated at Trinity College, Cambridge University, Cambridge, Cambridgeshire, EnglandG.1
Child of Charles Hewitt Smith and Mary Peckham
- Charles Peckham Peckham+1 b. 9 Jul 1801, d. 4 Nov 1873
- [S2226] Lawless Bethune, “re: Bethune Family,” e-mail message to www.peerage.org.uk, 27 March 2007. Hereinafter cited as “re: Bethune Family.”
Mary Peckham1 
From 5 June 1800, her married name became Smith.1
Child of Mary Peckham and Charles Hewitt Smith
- Charles Peckham Peckham+1 b. 9 Jul 1801, d. 4 Nov 1873
- [S2226] Lawless Bethune, “re: Bethune Family,” e-mail message to www.peerage.org.uk, 27 March 2007. Hereinafter cited as “re: Bethune Family.”
Sir William Mark Charles Garthwaite, 3rd Bt.1 
Sir William Mark Charles Garthwaite, 3rd Bt. usually went by his middle name of Mark.1 He was educated at Gordonstoun School, Elgin, Morayshire, ScotlandG.1 He graduated from University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A.G, with a Bachelor of Science (B.Sc.)1 He was with Seascope Insurance Services (Marine Insurance Brokers) between 1970 and 1987.1 He was with Brandram and Garthwaite Ltd between 1987 and 1988.2 He was director of Regis Low Ltd, Lloyd’s Brokers in 1988.1 He was director of Steel Burrill Jones Ltd between 1992 and 1997.2 He succeeded as the 3rd Baronet Garthwaite, of Durham [U.K., 1919] on 15 December 1993.1 He was a director of Willis Ltd in 1997.1 He lived in 2003 at 3 Hazlewell Road, London, EnglandG.1
Children of Sir William Mark Charles Garthwaite, 3rd Bt. and Victoria Lisette Tuzo
- Rosie Francesca Garthwaite2 b. 1980
- Sir William Tuzo Garthwaite, 4th Bt.2 b. 14 May 1982
- Jemima Victoria Garthwaite2 b. 31 Jan 1984
Sir Philip d’Ambrumenil1 
He lived at St. James’s Court, Buckingham Gate, London, EnglandG.1 He was chairman of Lloyd’s.3
Child of Sir Philip d’Ambrumenil and Gertrude Merriel Bailey
- Patricia Merriel d‘Ambrumenil+4 b. c 1924, d. 9 Apr 2012
- [S37] BP2003 volume 2, page 1527. See link for full details for this source. Hereinafter cited as. [S37]
- [S5792] Robin Dening, “re: Rochfort Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 2 January 2012. Hereinafter cited as “re: Rochfort Family.”
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
- [S37] BP2003. [S37]
Patricia Merriel d’Ambrumenil1 
From 4 April 1957, her married name became Garthwaite.
Children of Patricia Merriel d’Ambrumenil and Sir William Francis Cuthbert Garthwaite, 2nd Bt.
- John William Philip Garthwaite+3 b. 9 Jan 1958
- Sarah Francesca Merriel Garthwaite3 b. 17 Aug 1960, d. 24 Jun 1964
- Andrew William David Garthwaite+3 b. 1 Apr 1962
- Simon William James Garthwaite+3 b. 1 Apr 1962
- [S37] BP2003 volume 2, page 1527. 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]
John William Philip Garthwaite1
He lived in 2003 at Matfield Oast, Chestnut Lane, Matfield, Kent, EnglandG.1
Children of John William Philip Garthwaite and Sarah Elizabeth March
- Joanna Rachel Garthwaite2 b. 1992
- Rebecca Elizabeth Garthwaite2 b. 1994
Reverend Charles Anthony Maclea March1
Child of Reverend Charles Anthony Maclea March