Helen Sophia Duff1 
Helen Sophia Duff usually went by her middle name of Sophia.1 From 23 June 1857, her married name became Griffith-Boscawen.1
Children of Helen Sophia Duff and Boscawen Trevor Griffith-Boscawen
- Boscawen Trevor Griffith-Boscawen+1 b. 11 Jul 1860, d. 22 May 1941
- Rt. Hon. Sir Arthur Sackville Trevor Griffith-Boscawen+1 b. 18 Oct 1865, d. 1 Jun 1946
- Helen Evelyn Trevor Griffith-Boscawen+1 b. 2 Jun 1867, d. 25 Apr 1945
- Alice Catharine Trevor Griffith-Boscawen+1 b. 18 Oct 1870, d. 18 Jan 1963
- [S1438] Sir William, Bt. Arbuthnot, “re: Arbuthnot and Duff Families,” e-mail message to British and European Nobility Register, 29 August 2005 and later. Hereinafter cited as “re: Arbuthnot and Duff Families.”
Boscawen Trevor Griffith-Boscawen1 
He was given the name of Boscawen Trevor Griffith at birth.2 He gained the rank of Captain in the Royal Welsh Fusiliers.2 He held the office of Deputy Lieutenant (D.L.)1 He held the office of Justice of the Peace (J.P.)1 He lived at Trevalyn Hall, Wrexham, Denbighshire, WalesG, (near Wrexham.)1
Children of Boscawen Trevor Griffith-Boscawen and Helen Sophia Duff
- Boscawen Trevor Griffith-Boscawen+2 b. 11 Jul 1860, d. 22 May 1941
- Rt. Hon. Sir Arthur Sackville Trevor Griffith-Boscawen+2 b. 18 Oct 1865, d. 1 Jun 1946
- Helen Evelyn Trevor Griffith-Boscawen+1 b. 2 Jun 1867, d. 25 Apr 1945
- Alice Catharine Trevor Griffith-Boscawen+2 b. 18 Oct 1870, d. 18 Jan 1963
- [S47] BIFR1976 Archdale, page 34. See link for full details for this source. Hereinafter cited as. [S47]
- [S1438] Sir William, Bt. Arbuthnot, “re: Arbuthnot and Duff Families,” e-mail message to British and European Nobility Register, 29 August 2005 and later. Hereinafter cited as “re: Arbuthnot and Duff Families.”
Thomas Griffith1
Child of Thomas Griffith and Elizabeth Boscawen
- Boscawen Trevor Griffith-Boscawen+1 b. 14 Aug 1835, d. 30 Dec 1904
- [S1438] Sir William, Bt. Arbuthnot, “re: Arbuthnot and Duff Families,” e-mail message to British and European Nobility Register, 29 August 2005 and later. Hereinafter cited as “re: Arbuthnot and Duff Families.”
Elizabeth Boscawen1
Child of Elizabeth Boscawen and Thomas Griffith
- Boscawen Trevor Griffith-Boscawen+1 b. 14 Aug 1835, d. 30 Dec 1904
- [S1438] Sir William, Bt. Arbuthnot, “re: Arbuthnot and Duff Families,” e-mail message to British and European Nobility Register, 29 August 2005 and later. Hereinafter cited as “re: Arbuthnot and Duff Families.”
Agnes Lillian Bellers1 
Agnes Lillian Bellers usually went by her middle name of Lillian.1 Her married name became Griffith-Boscawen.1
Children of Agnes Lillian Bellers and Boscawen Trevor Griffith-Boscawen
- Enid Sophia Boscawen+1 b. 11 Nov 1889, d. 23 Jan 1980
- Vera Edyth Griffith-Boscawen+1 b. 2 Jan 1894, d. 21 Aug 1968
- [S1438] Sir William, Bt. Arbuthnot, “re: Arbuthnot and Duff Families,” e-mail message to British and European Nobility Register, 29 August 2005 and later. Hereinafter cited as “re: Arbuthnot and Duff Families.”
Sir Clement Wakefield Jones1 
Children of Sir Clement Wakefield Jones and Enid Sophia Boscawen
- Nesta Margaret Sophia Jones1 b. 9 Sep 1912, d. 26 May 1991
- Martin Clement Trevor Jones1 b. 20 Jun 1915, d. 1981
- Maurice Llewelyn Clement-Jones+1 b. 12 Oct 1917, d. 5 Mar 1988
- [S1438] Sir William, Bt. Arbuthnot, “re: Arbuthnot and Duff Families,” e-mail message to British and European Nobility Register, 29 August 2005 and later. Hereinafter cited as “re: Arbuthnot and Duff Families.”
Nesta Margaret Sophia Jones1 
From 20 June 1934, her married name became Brown.1
- [S1438] Sir William, Bt. Arbuthnot, “re: Arbuthnot and Duff Families,” e-mail message to British and European Nobility Register, 29 August 2005 and later. Hereinafter cited as “re: Arbuthnot and Duff Families.”
John Stephen Brown1 
- [S1438] Sir William, Bt. Arbuthnot, “re: Arbuthnot and Duff Families,” e-mail message to British and European Nobility Register, 29 August 2005 and later. Hereinafter cited as “re: Arbuthnot and Duff Families.”
Martin Clement Trevor Jones1 
- [S1438] Sir William, Bt. Arbuthnot, “re: Arbuthnot and Duff Families,” e-mail message to British and European Nobility Register, 29 August 2005 and later. Hereinafter cited as “re: Arbuthnot and Duff Families.”
Micheline Giffard1
From 11 September 1948, her married name became Jones.1
- [S1438] Sir William, Bt. Arbuthnot, “re: Arbuthnot and Duff Families,” e-mail message to British and European Nobility Register, 29 August 2005 and later. Hereinafter cited as “re: Arbuthnot and Duff Families.”
