Charles Godfrey Massy-Dawson1 
He gained the rank of Temporary 2nd Lieutenant in the General List.1 He gained the rank of officer in the Royal Flying Corps.1
Children of Charles Godfrey Massy-Dawson and Wilhelmina Geraldine Haughton
- Nora St. Clair Massy-Dawson2 b. 19 Sep 1904
- Lieutenant Dennis Staunton Massy-Dawson2 b. 6 Dec 1909, d. 7 Jan 1940
- Morna Helena Casey Massy-Dawson+2 b. 17 May 1915, d. 20 Aug 1953
Christopher David Hall1 
- [S1042] Peter Wood, “re: Persse Family,” e-mail message to British and European Nobility Register, 2003 to 2021. Hereinafter cited as “re: Persse Family.”
Wilhelmina Geraldine Haughton1
From 5 September 1903, her married name became Massy-Dawson.
Children of Wilhelmina Geraldine Haughton and Charles Godfrey Massy-Dawson
- Nora St. Clair Massy-Dawson4 b. 19 Sep 1904
- Lieutenant Dennis Staunton Massy-Dawson4 b. 6 Dec 1909, d. 7 Jan 1940
- Morna Helena Casey Massy-Dawson+4 b. 17 May 1915, d. 20 Aug 1953
Lieutenant Dennis Staunton Massy-Dawson1

He fought in the Second World War.1 He gained the rank of Lieutenant in the Royal Navy.1
- [S37] BP2003 volume 2, page 2639. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S266] World War II Unit Histories – Officers, online http://www.unithistories.com/units_index/default.asp?file=../officers/personsx. Hereinafter cited as World War II Unit Histories – Officers.
Lt.-Col. William Kentigern Hamilton-Campbell1 
He was awarded the Distinguished Service Order (D.S.O.)1 He held the office of Deputy Lieutenant (D.L.)1
Child of Lt.-Col. William Kentigern Hamilton-Campbell
Jean Mary Hamilton-Campbell1
From 15 July 1939, her married name became Massy-Dawson. From 29 September 1941, her married name became Ackery.1
- [S37] BP2003 volume 2, page 2639. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S266] World War II Unit Histories – Officers, online http://www.unithistories.com/units_index/default.asp?file=../officers/personsx. Hereinafter cited as World War II Unit Histories – Officers.
Nora St. Clair Massy-Dawson1
Morna Helena Casey Massy-Dawson1 
From 9 October 1942, her married name became Lang.
Child of Morna Helena Casey Massy-Dawson and Lt.-Gen. Sir Derek Boileau Lang
Lt.-Gen. Sir Derek Boileau Lang1 
He was educated at Wellington College, Crowthorne, Berkshire, England.2 He was educated at Royal Military Academy, Sandhurst, Berkshire, England.2 He fought in the Second World War, where he was taken a POW in 1940 and escaped.2 He was awarded the Military Cross (M.C.)1 He was awarded the Distinguished Service Order (D.S.O.)1 He gained the rank of Lieutenant-Colonel in the Cameron Highlanders.1 He was appointed Knight Commander, Order of the Bath (K.C.B.)3 He held the office of Deputy Lieutenant (D.L.) of Edinburgh.2
Child of Lt.-Gen. Sir Derek Boileau Lang and Morna Helena Casey Massy-Dawson
- [S37] BP2003 volume 2, page 2639. See link for full details for this source. Hereinafter cited as. [S37]
- [S466] Notices, The Telegraph, London, UK. Hereinafter cited as The Telegraph.
- [S5083] Julian Lang, “re: Lang Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 12 January 2011. Hereinafter cited as “re: Lang Family.”
- [S9302] Martin Webber, “re: Simonds Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 10 Mar 2021. Hereinafter cited as “re: Simonds Family.”
Robert Henry Massy-Dawson1 
He gained the rank of Temporary 2nd Lieutenant in the General List.1
