Sir Hugh Douglas Blackett, 8th Bt.1 
He succeeded as the 8th Baronet Blackett, of Newcastle, co. Northumberland [E., 1673] on 13 September 1909.1 He gained the rank of Captain in the Northumberland Yeomanry.1 He held the office of High Sheriff of Northumberland in 1914.1 He held the office of Justice of the Peace (J.P.) for Northumberland.1
Children of Sir Hugh Douglas Blackett, 8th Bt. and Helen Katharine Lowther
- Major Sir Charles Douglas Blackett, 9th Bt.+1 b. 15 Aug 1904, d. 26 Dec 1968
- Sir George William Blackett, 10th Bt.1 b. 26 Apr 1906, d. 22 Jan 1994
- Major Sir Francis Hugh Blackett, 11th Bt.+1 b. 16 Oct 1907, d. 9 Feb 1995
- Major Rupert Henry Blackett+1 b. 13 Feb 1911, d. 1 May 1992
- [S37] BP2003 volume 1, page 386. See link for full details for this source. Hereinafter cited as. [S37]
Helen Katharine Lowther1 
From 5 February 1903, her married name became Blackett.1
Children of Helen Katharine Lowther and Sir Hugh Douglas Blackett, 8th Bt.
- Major Sir Charles Douglas Blackett, 9th Bt.+1 b. 15 Aug 1904, d. 26 Dec 1968
- Sir George William Blackett, 10th Bt.1 b. 26 Apr 1906, d. 22 Jan 1994
- Major Sir Francis Hugh Blackett, 11th Bt.+1 b. 16 Oct 1907, d. 9 Feb 1995
- Major Rupert Henry Blackett+1 b. 13 Feb 1911, d. 1 May 1992
Major Sir Charles Douglas Blackett, 9th Bt.1 
He was educated at Eton College, Windsor, Berkshire, EnglandG.1 He was educated in 1924 at Royal Military College, Sandhurst, Berkshire, EnglandG.1 He fought in the Second World War between 1939 and 1942, when he became a POW.1 He gained the rank of Major in the The Queen’s Bays.1 He held the office of High Sheriff of Northumberland in 1953.1 He held the office of Deputy Lieutenant (D.L.) of Northumberland in 1953.1 He succeeded as the 9th Baronet Blackett, of Newcastle, co. Northumberland [E., 1673] on 13 November 1960.1
Children of Major Sir Charles Douglas Blackett, 9th Bt. and Ursula Mary Cely Trevilian
- Caroline Ann Blackett+1 b. 22 Jun 1936, d. 8 Aug 2014
- Edward Douglas Blackett1 b. 30 Jul 1938, d. 7 Oct 1938
- Lucinda Mary Blackett+1 b. 28 Jun 1940
- [S37] BP2003 volume 1, page 386. See link for full details for this source. Hereinafter cited as. [S37]
Sir George William Blackett, 10th Bt.1 
He fought in the Second World War, in the Corps of Military Police.1 He succeeded as the 10th Baronet Blackett, of Newcastle, co. Northumberland [E., 1673] on 26 December 1968.1
- [S37] BP2003 volume 1, page 386. 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.
Anna M. Coldwell1
From 1982, her married name became Blackett.1
Children of Anna M. Coldwell and Sir Hugh Francis Blackett, 12th Bt.
- Amelia Blackett+1 b. 1984
- Isabella Blackett+1 b. 1986
- Flora Blackett1 b. 1988
- Henry Douglas Blackett1 b. 2 Feb 1992
- [S37] BP2003 volume 1, page 385. See link for full details for this source. Hereinafter cited as. [S37]
- [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.”
James St. George Coldwell1 
He lived at Somerton, Oxfordshire, EnglandG.1
Child of James St. George Coldwell
Child of James St. George Coldwell and Rosemary A. Pryse-Rice
- Anna M. Coldwell+1 b. 1959
- [S37] BP2003 volume 1, page 385. See link for full details for this source. Hereinafter cited as. [S37]
- [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. [S37]
Henry Douglas Blackett1
- [S37] BP2003 volume 1, page 385. See link for full details for this source. Hereinafter cited as. [S37]
Amelia Blackett1
Her married name became Anderson.2
Children of Amelia Blackett and Thomas Philip Palmer Anderson
- Jemima Eliza Anderson2 b. 19 Sep 2014
- Phoebe Kitty Anderson3 b. 5 Sep 2016
- Theodora Anna Anderson3 b. 5 Sep 2016
- Daisy Cecilia Anderson3 b. 22 May 2019
- [S37] BP2003 volume 1, page 385. 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.
- [S466] Notices, The Telegraph, London, UK. Hereinafter cited as The Telegraph.
Isabella Blackett1
Her married name became Maguire.2
Child of Isabella Blackett and Daniel R. Maguire
- George Alfie Maguire2 b. 1 Jul 2020
Flora Blackett1
- [S37] BP2003 volume 1, page 385. See link for full details for this source. Hereinafter cited as. [S37]
