Mildred Mary Thornhill1
From 14 September 1912, her married name became Allen.1
Children of Mildred Mary Thornhill and Maurice Tyrone Workman Allen
- Daphne Joan Allen+1 b. 9 Aug 1915
- Major Geoffrey Michael Allen+1 b. 9 Sep 1918, d. 25 Jul 1962
- [S31] Bernard, Sir Burke, editor, Burke’s genealogical and heraldic history of the landed gentry of Ireland, 4th ed. (London, U.K.: Burkes Peerage Ltd, 1958), page 14. Hereinafter cited as Landed Gentry of Ireland.
E. B. Thornhill1
Child of E. B. Thornhill
- [S31] Bernard, Sir Burke, editor, Burke’s genealogical and heraldic history of the landed gentry of Ireland, 4th ed. (London, U.K.: Burkes Peerage Ltd, 1958), page 14. Hereinafter cited as Landed Gentry of Ireland.
Major Geoffrey Michael Allen1 
He was educated at Aldenham School, Elstree, Hertfordshire, EnglandG.1 He was educated at Jesus College, Cambridge University, Cambridge, Cambridgeshire, EnglandG.1 He gained the rank of Major and Adjutant in the King’s African Rifles.1 He fought in the Second World War.1 He was the joint headmaster at St. Martin’s Prepartory School, Northwood, London, EnglandG.1
Child of Major Geoffrey Michael Allen and Joan Cummings
- Michael Clive Tyrone Allen1 b. 21 Mar 1942
- [S31] Bernard, Sir Burke, editor, Burke’s genealogical and heraldic history of the landed gentry of Ireland, 4th ed. (London, U.K.: Burkes Peerage Ltd, 1958), page 14. Hereinafter cited as Landed Gentry of Ireland.
- [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.
Joan Cummings1
From 12 January 1941, her married name became Allen.1
Child of Joan Cummings and Major Geoffrey Michael Allen
- Michael Clive Tyrone Allen1 b. 21 Mar 1942
- [S31] Bernard, Sir Burke, editor, Burke’s genealogical and heraldic history of the landed gentry of Ireland, 4th ed. (London, U.K.: Burkes Peerage Ltd, 1958), page 14. Hereinafter cited as Landed Gentry of Ireland.
Michael Clive Tyrone Allen1
- [S31] Bernard, Sir Burke, editor, Burke’s genealogical and heraldic history of the landed gentry of Ireland, 4th ed. (London, U.K.: Burkes Peerage Ltd, 1958), page 14. Hereinafter cited as Landed Gentry of Ireland.
Daphne Joan Allen1
From 1 July 1939, her married name became Marsh.1
Children of Daphne Joan Allen and Francis Rory Marsh
- Nicholas Francis David Marsh1 b. 4 Aug 1941
- William Martin Marsh1 b. 21 Mar 1946
- [S31] Bernard, Sir Burke, editor, Burke’s genealogical and heraldic history of the landed gentry of Ireland, 4th ed. (London, U.K.: Burkes Peerage Ltd, 1958), page 14. Hereinafter cited as Landed Gentry of Ireland.
Francis Rory Marsh1
Children of Francis Rory Marsh and Daphne Joan Allen
- Nicholas Francis David Marsh1 b. 4 Aug 1941
- William Martin Marsh1 b. 21 Mar 1946
- [S31] Bernard, Sir Burke, editor, Burke’s genealogical and heraldic history of the landed gentry of Ireland, 4th ed. (London, U.K.: Burkes Peerage Ltd, 1958), page 14. Hereinafter cited as Landed Gentry of Ireland.
Nicholas Francis David Marsh1
- [S31] Bernard, Sir Burke, editor, Burke’s genealogical and heraldic history of the landed gentry of Ireland, 4th ed. (London, U.K.: Burkes Peerage Ltd, 1958), page 14. Hereinafter cited as Landed Gentry of Ireland.
William Martin Marsh1
- [S31] Bernard, Sir Burke, editor, Burke’s genealogical and heraldic history of the landed gentry of Ireland, 4th ed. (London, U.K.: Burkes Peerage Ltd, 1958), page 14. Hereinafter cited as Landed Gentry of Ireland.
Samuel Carson Allen1 
He was educated at Belfast Academical Institute, Belfast, County Antrim, IrelandG.1 He was joint managing director of David Allen & Sons Ltd.1 He lived at The Fairway, Seaford, Sussex, EnglandG.1
Child of Samuel Carson Allen and Caroline Julia Cronin
- Richard John Allen1 b. 29 Aug 1910
- [S31] Bernard, Sir Burke, editor, Burke’s genealogical and heraldic history of the landed gentry of Ireland, 4th ed. (London, U.K.: Burkes Peerage Ltd, 1958), page 14. Hereinafter cited as Landed Gentry of Ireland.
