Hon. Sophia Margaret Watson1
From 20 June 1936, her married name became Callow.1
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 266. Hereinafter cited as The New Extinct Peerage.
M. J. Callow1
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 266. Hereinafter cited as The New Extinct Peerage.
Brig.-Gen. Christopher Birdwood Thomson, Baron Thomson1 
He was educated at Cheltenham College, Cheltenham, Gloucestershire, EnglandG.2 He was commissioned in 1894 with the rank of officer|Royal Engineers.2 He was educated at Royal Military Academy, Woolwich, Kent, EnglandG.2 He fought in the Mashonaland Campaign in 1896.2 He fought in the Boer War between 1900 and 1902.2 He gained the rank of Brevet Major.2 He fought in the First World War.2 He gained the rank of GSO(1) between 1914 and 1915.2 He was Commander of the 60th Division, Palestine between 1917 and 1918.2 He was awarded the Distinguished Service Order (D.S.O.) in 1918.2 He gained the rank of Brigadier-General in 1918.2 He was appointed Commander, Order of the British Empire (C.B.E.) in 1919.2 He retired from the military in 1919, with the rank of Brigadier-General.2 He was appointed Privy Counsellor (P.C.) in 1924.2 He held the office of Secretary of State, Air in 1924.2 He was created Baron Thomson, of Cardington, co. Bedford [U.K.] on 11 February 1924.2 He held the office of Secretary of State, Air between 1929 and 1930.2
Roger William David Thomson1
He gained the rank of Midshipman in the Royal NAvy.1
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 267. Hereinafter cited as The New Extinct Peerage.
Emily Lydia Birdwood1
From 26 January 1867, her married name became Thomson.1
Children of Emily Lydia Birdwood and Maj.-Gen. David Thomson
- Harry Tagert Thomson2 b. 17 Aug 1860
- Harry Verelst Thomson1 b. 1867, d. 1868
- Nellie de Winton Thomson2 b. 2 Jun 1869, d. 1910
- Burns Travers Thomson1 b. 15 Aug 1870, d. 21 Feb 1896
- Annie Gordon Thomson2 b. 1872, d. 1872
- Winifred Marian Thomson2 b. 29 May 1873, d. 15 Jan 1901
- Brig.-Gen. Christopher Birdwood Thomson, Baron Thomson1 b. 13 Apr 1875, d. 5 Oct 1930
- Colonel Roger Gordon Thomson+2 b. 4 Apr 1878
- Mary Josephine Thomson2 b. 3 May 1879
- Alice May Lydia Thomson2 b. 3 May 1897
General Harry Thomson1 
Child of General Harry Thomson
- Maj.-Gen. David Thomson+1 b. 1833, d. 23 Mar 1911
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 266. Hereinafter cited as The New Extinct Peerage.
Harry Verelst Thomson1 
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 266. Hereinafter cited as The New Extinct Peerage.
Florence Margaret Gordon Thomson1
From 26 April 1925, her married name became Richardson-Bunbury.1
Children of Florence Margaret Gordon Thomson and Richard Richardson-Bunbury
- Sir Richard David Michael Richardson-Bunbury, 5th Bt.+4 b. 27 Oct 1927, d. 1 Dec 2017
- Margaret Delves Richardson-Bunbury+4 b. 27 Sep 1931
- Roger Hugh Moutray Richardson-Bunbury+4 b. 25 Oct 1934
- Angela Mervyn Richardson-Bunbury4 b. 24 Jan 1946
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 267. Hereinafter cited as The New Extinct Peerage.
- [S4567] Bill Norton, “re: Pitman Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 6 April 2010 and 19 April 2011. Hereinafter cited as “re: Pitman Family.”
- [S37] BP2003 volume 3, page 3332. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
Richard Richardson-Bunbury1
Children of Richard Richardson-Bunbury and Florence Margaret Gordon Thomson
- Sir Richard David Michael Richardson-Bunbury, 5th Bt.+2 b. 27 Oct 1927, d. 1 Dec 2017
- Margaret Delves Richardson-Bunbury+2 b. 27 Sep 1931
- Roger Hugh Moutray Richardson-Bunbury+2 b. 25 Oct 1934
- Angela Mervyn Richardson-Bunbury2 b. 24 Jan 1946
- [S37] BP2003 volume 3, page 3332. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 267. Hereinafter cited as The New Extinct Peerage.
Caroline Mary Colville1
From 1970, her married name became Chataway.1
Children of Caroline Mary Colville and Michael Denys Chataway
- James Jonathan Chataway1 b. 1973
- Charlotte Mary Chataway+1 b. 1976
- [S4567] Bill Norton, “re: Pitman Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 6 April 2010 and 19 April 2011. Hereinafter cited as “re: Pitman Family.”
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
