Matthew Thomas Thurston Borthwick1
Children of Matthew Thomas Thurston Borthwick and Rowena Clare Lovell
- Iris Patricia Lovell Borthwick2 b. 20 Oct 2010
- Henry Borthwick3 b. 22 Mar 2014
Suzanna Claire Irene Borthwick1
- [S37] BP2003 volume 1, page 440. See link for full details for this source. Hereinafter cited as. [S37]
Camilla Fay Broke Borthwick1
- [S37] BP2003 volume 1, page 440. See link for full details for this source. Hereinafter cited as. [S37]
Sir John Thomas Borthwick, 3rd Bt.1 
He was educated at Eton College, Windsor, Berkshire, EnglandG.1 He was educated at Trinity College, Oxford University, Oxford, Oxfordshire, EnglandG.1 He fought in the Second World War.1 He gained the rank of Major in the Rifle Brigade (Territorial Army.)1 He was appointed Member, Order of the British Empire (M.B.E.) in 1945.1 He was admitted to Butchers’ Company, as a Liveryman.1 He succeeded as the 3rd Baronet Borthwick, of Whitburgh House, Ford, co. Midlothian [U.K., 1908] on 29 September 1967.1
Children of Sir John Thomas Borthwick, 3rd Bt. and Irene Sophie Heller
- Sir Antony Thomas Borthwick, 4th Bt.+1 b. 12 Feb 1941
- Peter Richard John Borthwick+1 b. 22 May 1943
- Patrick James Joseph Borthwick+1 b. 27 Dec 1945
Children of Sir John Thomas Borthwick, 3rd Bt. and Irene Fink
- Mark George Alexander Borthwick2 b. 18 Oct 1962
- John Kelly Leo Borthwick2 b. 2 Aug 1965
- [S37] BP2003 volume 1, page 440. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Hon. James Alexander Borthwick1 
On 8 February 1913 he was granted the rank of a baron’s son.1
Children of Hon. James Alexander Borthwick and Irene Evangeline Wise
- Sir John Thomas Borthwick, 3rd Bt.+1 b. 5 Dec 1917, d. 25 Oct 2002
- Captain Peter George Alexander Borthwick2 b. 27 May 1922, d. 15 Nov 1944
Irene Evangeline Wise1 
From 15 June 1912, her married name became Borthwick.1
Children of Irene Evangeline Wise and Hon. James Alexander Borthwick
- Sir John Thomas Borthwick, 3rd Bt.+1 b. 5 Dec 1917, d. 25 Oct 2002
- Captain Peter George Alexander Borthwick3 b. 27 May 1922, d. 15 Nov 1944
George Wise1
Child of George Wise
- Irene Evangeline Wise+1 b. 3 Mar 1883, d. 1 Nov 1982
- [S37] BP2003 volume 1, page 440. See link for full details for this source. Hereinafter cited as. [S37]
Irene Sophie Heller1 
From 4 November 1939, her married name became Borthwick.1
Children of Irene Sophie Heller and Sir John Thomas Borthwick, 3rd Bt.
- Sir Antony Thomas Borthwick, 4th Bt.+1 b. 12 Feb 1941
- Peter Richard John Borthwick+1 b. 22 May 1943
- Patrick James Joseph Borthwick+1 b. 27 Dec 1945
- [S37] BP2003 volume 1, page 440. See link for full details for this source. Hereinafter cited as. [S37]
Joseph Heller1
Child of Joseph Heller
- Irene Sophie Heller+1 d. 1978
- [S37] BP2003 volume 1, page 440. See link for full details for this source. Hereinafter cited as. [S37]
Peter Richard John Borthwick1
He was educated at Eton College, Windsor, Berkshire, EnglandG.1
Children of Peter Richard John Borthwick and Helen Vogel
- Maya Irene Borthwick1 b. 1975
- Linton Borthwick1 b. 1977
- Iona Christine Borthwick1 b. 1980
- [S37] BP2003 volume 1, page 440. See link for full details for this source. Hereinafter cited as. [S37]
