Olivia Wynefred Hugolyne Pigott1
Child of Olivia Wynefred Hugolyne Pigott and Arthur Gwynne-James
- Elsa Hugolyne Gertrude Gwynne-James1 b. 14 Aug 1908, d. 15 Jul 1999
- [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.”
Geoffrey Cotton Cooke1 
- [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.”
- [S3195] Quentin Green, “re: Cooke Family,” e-mail message to BENR, 22 June 2008 and 24 October 2008. Hereinafter cited as “re: Cooke FAmily.”
Commander Edward Rupert Tyndale-Biscoe1 
He gained the rank of Lieutenant in the Royal Navy.1
Children of Commander Edward Rupert Tyndale-Biscoe and Christina Frances Vaughan Johnson
- Michael Walter Tyndale-Biscoe+1 b. 8 Dec 1936
- Anthony Christopher Tyndale-Biscoe+1 b. 3 Apr 1940
- Robert Alexander Tyndale-Biscoe+1 b. 8 Jul 1944
- [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.”
Christina Frances Vaughan Johnson1 
Christina Frances Vaughan Johnson also went by the nick-name of Jill.2 From 27 July 1933, her married name became Tyndale-Biscoe.2
Children of Christina Frances Vaughan Johnson and Commander Edward Rupert Tyndale-Biscoe
- Michael Walter Tyndale-Biscoe+1 b. 8 Dec 1936
- Anthony Christopher Tyndale-Biscoe+1 b. 3 Apr 1940
- Robert Alexander Tyndale-Biscoe+1 b. 8 Jul 1944
- [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.”
Robert Vaughan Johnson1
Child of Robert Vaughan Johnson
- Christina Frances Vaughan Johnson+1 b. 13 Jun 1913, d. c 10 May 2003
- [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.
Michael Walter Tyndale-Biscoe1
Children of Michael Walter Tyndale-Biscoe and Valerie Thomas
- Julia Tyndale-Biscoe+2 b. 16 Apr 1963
- Anna Jane Tyndale-Biscoe2 b. 8 Sep 1966
- [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.”
Valerie Thomas1
From 8 September 1958, her married name became Tyndale-Biscoe.1
Children of Valerie Thomas and Michael Walter Tyndale-Biscoe
- Julia Tyndale-Biscoe+1 b. 16 Apr 1963
- Anna Jane Tyndale-Biscoe1 b. 8 Sep 1966
- [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.”
Ernest Evans Thomas1
Child of Ernest Evans Thomas
- Valerie Thomas+1 b. 1935
- [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.”
Julia Tyndale-Biscoe1
Her married name became Mojtehedzadeth.1
Children of Julia Tyndale-Biscoe and Massin Mojtehedzadeth
- [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.”
Massin Mojtehedzadeth1
Children of Massin Mojtehedzadeth and Julia Tyndale-Biscoe
- [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.”
