Nicola Mary James 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.”
Jayne Elizabeth Bryce1
From 20 February 1988, her married name became James Duff.1
Children of Jayne Elizabeth Bryce and David Robin Millais James Duff, 13th of Hatton
- Gardie William Beauchamp James Duff1 b. 1993
- Patrick Alexander James Duff1 b. 1995
Gardie William Beauchamp James Duff1
He was educated at Ardvreck School, Crieff, Perthshire, ScotlandG.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.”
Patrick Alexander James Duff1
He was educated at Ardvreck School, Crieff, Perthshire, ScotlandG.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.”
Simon Christopher James Duff1
He lived in 2003 at Yew House, Rectory Lane, Bramshott, Liphook, Hampshire, EnglandG.2
- [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 1205. See link for full details for this source. Hereinafter cited as. [S37]
Anna Catherine Shine1
From 1975, her married name became James Duff.1
Diana Millais James1 
- [S37] BP2003 volume 1, page 1205. See link for full details for this source. Hereinafter cited as. [S37]
- [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.”
Marjorie Hill-Whitson1
From 10 January 1924, 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 1205. See link for full details for this source. Hereinafter cited as. [S37]
Reverend Charles Edmund Duff1 
He graduated from Aberdeen University, Aberdeen, Aberdeenshire, ScotlandG, in 1887 with a Bachelor of Medicine (M.B.)2 He was the Vicar between 1907 and 1921 at Sydling, Dorset, EnglandG.2 He was the Vicar between 1921 and 1937 at Harwicke, Herefordshire, EnglandG.2
Children of Reverend Charles Edmund Duff and Mary Susan Smith
- Ian Archibald James Duff+2 b. 20 Jan 1895, d. 1949
- Colin Guthrie Duff+3 b. 16 Jul 1896
- [S37] BP2003 volume 2, page 1724. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [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.”
Mary Susan Smith1 
From 11 January 1894, her married name became Duff.3
Children of Mary Susan Smith and Reverend Charles Edmund Duff
- Ian Archibald James Duff+2 b. 20 Jan 1895, d. 1949
- Colin Guthrie Duff+3 b. 16 Jul 1896
- [S37] BP2003 volume 1, page 1205. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [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.”