Edith Alice Ives1
From 14 July 1916, 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]
John Duff1 
Child of John Duff and Evelina Constance Pratt
- Frances Evelina Duff3 b. 23 Jan 1898
Child of John Duff and Lily Clough
- Lily Katherine Duff3 b. 1905
- [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]
- [S37] BP2003. [S37]
Evelina Constance Pratt1 
From circa 1897, her married name became Duff.3
Child of Evelina Constance Pratt and John Duff
- Frances Evelina Duff2 b. 23 Jan 1898
- [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.”
Lily Clough1 
From 1904, her married name became Duff.2
Child of Lily Clough and John Duff
- Lily Katherine Duff3 b. 1905
- [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.”
- [S37] BP2003. [S37]
Helen Duff1 
Her married name became Pratt.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]
- [S37] BP2003. [S37]
George Whistler Pratt1
- [S37] BP2003 volume 1, page 1205. See link for full details for this source. Hereinafter cited as. [S37]
Katherine Duff1 
Her married name became Stevens.1
Children of Katherine Duff and Cecil Robert Stevens
- Cecil James Stevens1 b. 1893
- Mignonette Kathleen Jean Stevens+1 b. 1906
- [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]
- [S37] BP2003. [S37]
Cecil Robert Stevens1
He was with the Indian Medical Service.1
Children of Cecil Robert Stevens and Katherine Duff
- Cecil James Stevens2 b. 1893
- Mignonette Kathleen Jean Stevens+2 b. 1906
- [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.”
Cecil James Stevens1 
- [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.”
