Aline Mary 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.”
Cicely Katharine 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.”
unnamed son 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.”
Emily Beatrice Duff1 
Emily Beatrice Duff usually went by her middle name of Beatrice.2 From 14 June 1904, her married name became Tyndale-Biscoe.2
Children of Emily Beatrice Duff and Lt.-Col. Arthur Annesley Tyndale-Biscoe
- Rear-Admiral Alec Julian Tyndale-Biscoe+1 b. 10 Aug 1906, d. 26 Apr 1997
- Commander Edward Rupert Tyndale-Biscoe+1 b. 3 Jul 1909, d. 12 Sep 1986
- Rosamond Mary Tyndale-Biscoe+1 b. 15 Jan 1912, d. 13 Mar 2013
- Katherine Rachel Tyndale-Biscoe+1 b. 9 Jul 1918, d. 16 Nov 2016
- [S40] L. G. Pine, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 17th edition, (London, England: Burke’s Peerage Ltd, 1952), page 191. Hereinafter cited as Burke’s Landed Gentry, 17th 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.”
Lt.-Col. Arthur Annesley Tyndale-Biscoe1 
He gained the rank of Lieutenant-Colonel in the Hampshire Regiment, Territorial Army.1 He lived in 1952 at Aubrey House, Keyhaven, Lymington, Hampshire, EnglandG.1
Children of Lt.-Col. Arthur Annesley Tyndale-Biscoe and Emily Beatrice Duff
- Rear-Admiral Alec Julian Tyndale-Biscoe+1 b. 10 Aug 1906, d. 26 Apr 1997
- Commander Edward Rupert Tyndale-Biscoe+1 b. 3 Jul 1909, d. 12 Sep 1986
- Rosamond Mary Tyndale-Biscoe+1 b. 15 Jan 1912, d. 13 Mar 2013
- Katherine Rachel Tyndale-Biscoe+1 b. 9 Jul 1918, d. 16 Nov 2016
- [S40] L. G. Pine, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 17th edition, (London, England: Burke’s Peerage Ltd, 1952), page 191. Hereinafter cited as Burke’s Landed Gentry, 17th 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.”
Rear-Admiral Alec Julian Tyndale-Biscoe1 
He gained the rank of Commander in the Royal Navy.1
Children of Rear-Admiral Alec Julian Tyndale-Biscoe and Rosemary Jean Morrison
- Susan Mary Tyndale-Biscoe1 b. 5 Jan 1934, d. 18 Mar 1939
- Peter John Tyndale-Biscoe1 b. 20 Aug 1937, d. 4 Oct 1937
Children of Rear-Admiral Alec Julian Tyndale-Biscoe and Emma Winifred Haselden
- Janet Joy Tyndale-Biscoe+1 b. 31 Jul 1940
- Bridget Mary Tyndale-Biscoe+1 b. 4 Nov 1941
- Juliet Ann Tyndale-Biscoe+1 b. 1 Aug 1945
- Louise Tyndale-Biscoe+1 b. 19 Jul 1947
- [S40] L. G. Pine, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 17th edition, (London, England: Burke’s Peerage Ltd, 1952), page 191. Hereinafter cited as Burke’s Landed Gentry, 17th 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.”
Rosemary Jean Morrison1
From 17 August 1927, her married name became Tyndale-Biscoe.2
Children of Rosemary Jean Morrison and Rear-Admiral Alec Julian Tyndale-Biscoe
- Susan Mary Tyndale-Biscoe1 b. 5 Jan 1934, d. 18 Mar 1939
- Peter John Tyndale-Biscoe1 b. 20 Aug 1937, d. 4 Oct 1937
- [S40] L. G. Pine, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 17th edition, (London, England: Burke’s Peerage Ltd, 1952), page 191. Hereinafter cited as Burke’s Landed Gentry, 17th 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.”
Major Charles Edward MacIver Morrison1
Child of Major Charles Edward MacIver Morrison
- Rosemary Jean Morrison+2 b. 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.”
- [S40] L. G. Pine, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 17th edition, (London, England: Burke’s Peerage Ltd, 1952), page 191. Hereinafter cited as Burke’s Landed Gentry, 17th ed.
Susan Mary Tyndale-Biscoe1 
- [S40] L. G. Pine, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 17th edition, (London, England: Burke’s Peerage Ltd, 1952), page 191. Hereinafter cited as Burke’s Landed Gentry, 17th 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.”
Peter John Tyndale-Biscoe1 
- [S40] L. G. Pine, editor, Burke’s Genealogical and Heraldic History of the Landed Gentry, 17th edition, (London, England: Burke’s Peerage Ltd, 1952), page 191. Hereinafter cited as Burke’s Landed Gentry, 17th 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.”