Rt. Hon. Sir Robert William Duff, 4th of Fetteresso1 
He held the office of Governor of New South Wales.1 He was appointed Knight Grand Cross, Order of St. Michael and St. George (G.C.M.G.)1 He was appointed Privy Counsellor (P.C.)1
Children of Rt. Hon. Sir Robert William Duff, 4th of Fetteresso and Louisa Scott
- Isabel Abercromby Duff+4
- Robert William Duff, 5th of Fetteresso1 b. 17 Mar 1873
- Lt.-Col. Arthur Abercromby Scott-Duff+1 b. 11 Apr 1874, d. 3 Dec 1951
- Patrick Abercromby Duff1 b. 12 Nov 1881
- [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.”
- [S130] Wikipedia, online http;//www.wikipedia.org. Hereinafter cited as Wikipedia.
- [S474] FamilySearch, online http://www.familysearch.com. Hereinafter cited as FamilySearch.
- [S37] BP2003 See link for full details for this source. Hereinafter cited as. [S37]
Louisa Scott1
From 21 February 1871, her married name became Duff.1
Children of Louisa Scott and Rt. Hon. Sir Robert William Duff, 4th of Fetteresso
- Isabel Abercromby Duff+1
- Robert William Duff, 5th of Fetteresso1 b. 17 Mar 1873
- Lt.-Col. Arthur Abercromby Scott-Duff+1 b. 11 Apr 1874, d. 3 Dec 1951
- Patrick Abercromby Duff1 b. 12 Nov 1881
- [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.
Robert William Duff, 5th of Fetteresso1 
- [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.”
Lt.-Col. Arthur Abercromby Scott-Duff1 
His name was legally changed to Arthur Abercromby Scott-Duff.2 He was given the name of Arthur Abercromby Duff at birth.2 He was appointed Companion, Order of the Indian Empire (C.I.E.)1 He was appointed Member, Royal Victorian Order (M.V.O.)1 He held the office of Deputy Lieutenant (D.L.)1
Children of Lt.-Col. Arthur Abercromby Scott-Duff and Stella Cecile Evelyn Maude
- Helen Rosemary Scott-Duff2 b. 25 Aug 1930
- Margaret Abercromby Scott-Duff2 b. 21 Aug 1932
- [S37] BP2003 volume 2, page 1829. 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.”
Stella Cecile Evelyn Maude1 
From 28 November 1928, her married name became Scott-Duff.2
Children of Stella Cecile Evelyn Maude and Lt.-Col. Arthur Abercromby Scott-Duff
- Helen Rosemary Scott-Duff1 b. 25 Aug 1930
- Margaret Abercromby Scott-Duff1 b. 21 Aug 1932
- [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 2, page 1829. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
Helen Rosemary Scott-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.”
Margaret Abercromby Scott-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.”
Patrick Abercromby 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.”
Leonard Trelawny Hobhouse1 
He was awarded the honorary degree of Doctor of Letters (Litt.D.)2
Children of Leonard Trelawny Hobhouse and Nora Hadwen
- Reginald Oliver Hobhouse1 b. 1892
- Leonora Hobhouse1 b. 1896
Child of Leonard Trelawny Hobhouse
- Marjorie Berta Hobhouse3 b. 1898, d. 25 Aug 1951
- [S4567] Bill Norton, “re: Pitman Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 6 April 2010 and 19 April 2011. Hereinafter cited as “re: Pitman Family.”
- [S37] BP2003 volume 3, page 3950. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
Isabel Abercromby Duff1
From March 1904, her married name became Malcolm.1
Children of Isabel Abercromby Duff and Ronald Malcolm
- Colin Ronald Malcolm+1 b. 31 Mar 1906, d. 18 Oct 1959
- Kenneth Robert Malcolm+1 b. 17 Dec 1908, d. 3 Oct 1984
- Alexander Dougal Malcolm+1 b. 15 May 1910, d. 1994
- Jean Heather Malcolm2 b. 8 Sep 1920
- [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 See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]