Jean Cook1
From 14 October 1862, her married name became Duff.1
Children of Jean Cook and Garden William Duff, 9th of Hatton
- Walter Garden Duff1 b. 24 Nov 1863, d. 10 May 1945
- Mary Elizabeth Duff1 b. 14 Dec 1864, d. c 1947
- Bertha Hope Duff+1 b. 29 Jun 1866, d. 6 Mar 1897
- [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.”
Walter Garden Duff1 
- [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.”
- [S474] FamilySearch, online http://www.familysearch.com. Hereinafter cited as FamilySearch.
- [S37] BP2003 volume 1, page 588. See link for full details for this source. Hereinafter cited as. [S37]
Elizabeth Anne Leith1 
From 5 August 1891, her married name became Duff.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.”
- [S37] BP2003 volume 1, page 588. See link for full details for this source. Hereinafter cited as. [S37]
Mary Elizabeth Duff1 
- [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.”
- [S474] FamilySearch, online http://www.familysearch.com. Hereinafter cited as FamilySearch.
Bertha Hope Duff1 
Children of Bertha Hope Duff and Alan Colquhoun Duff
- Ludovic James Colquhoun Duff1 b. 16 Aug 1889, d. 17 Feb 1957
- Jean Alison Mary Duff1 b. 1893, d. 12 Mar 1894
- [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.”
- [S474] FamilySearch, online http://www.familysearch.com. Hereinafter cited as FamilySearch.
Alan Colquhoun Duff1

He was educated at Fettes College, Edinburgh, Midlothian, ScotlandG.2 He was educated at Trinity College, Cambridge University, Cambridge, Cambridgeshire, EnglandG.2 He was Deputy Commissioner of Jubbulpore between 1893 and 1897.2
Children of Alan Colquhoun Duff and Bertha Hope Duff
- Ludovic James Colquhoun Duff1 b. 16 Aug 1889, d. 17 Feb 1957
- Jean Alison Mary Duff1 b. 1893, d. 12 Mar 1894
- [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.”
- [S37] BP2003 volume 1, page 1204. See link for full details for this source. Hereinafter cited as. [S37]
George William Duff-Assheton-Smith1 
He held the office of Deputy Lieutenant (D.L.)1 He held the office of Justice of the Peace (J.P.)1 He was given the name of George William Duff at birth.2 In 1859 his name was legally changed to George William Duff-Assheton-Smith by Royal Licence.3 He held the office of High Sheriff of Angelsey in 1872.3 He held the office of High Sheriff of Carnarvonshire in 1878.3 He lived at Vaynol, Caernarvonshire, WalesG.1
Child of George William Duff-Assheton-Smith and Alice Laura Jones
- Enid Mary Duff-Assheton-Smith1 d. 6 Mar 1959
- [S47] BIFR1976 Baird, page 52. 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.”
- [S34] BP1970 page 847. See link for full details for this source. Hereinafter cited as. [S34]
Alice Laura Jones1 
From 19 April 1888, her married name became Duff-Assheton-Smith.2 From 19 February 1907, her married name became Holdsworth.3
Child of Alice Laura Jones and George William Duff-Assheton-Smith
- Enid Mary Duff-Assheton-Smith1 d. 6 Mar 1959
- [S155] Peter Townend, editor, Burke’s Peerage and Baronetage, 104th edition (London, U.K.: Burke’s Peerage Ltd, 1967), page 796. Hereinafter cited as Burke’s Peerage, 104th ed.
- [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.”
- [S34] BP1970 page 847. See link for full details for this source. Hereinafter cited as. [S34]
Henry Assheton Duff1 
He held the office of Justice of the Peace (J.P.) for Carnarvonshire.2
Child of Henry Assheton Duff and Emily Alice Pauline Morgan
- Francis George Assheton Duff2 b. 10 Jan 1901
- [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.”
- [S34] BP1970 page 847. See link for full details for this source. Hereinafter cited as. [S34]
Emily Alice Pauline Morgan1 
From 18 February 1896, her married name became Duff.1
Child of Emily Alice Pauline Morgan and Henry Assheton Duff
- Francis George Assheton Duff2 b. 10 Jan 1901
- [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.”
- [S34] BP1970 page 847. See link for full details for this source. Hereinafter cited as. [S34]
