Elizabeth Trefusis1 
- [S988] Cornwall OPC Database, online http://www.cornwall-opc-database.org/. Hereinafter cited as Cornwall OPC Database.
Marianne Coventry Trefusis1 
- [S988] Cornwall OPC Database, online http://www.cornwall-opc-database.org/. Hereinafter cited as Cornwall OPC Database.
Jan Casper Hartsinck1 
Children of Jan Casper Hartsinck and Susanna Cornelia Pels
- Jan Jacob Hartsinck1 b. 14 Oct 1716, d. 28 Oct 1779
- Vice-Admiral Andries Hartsinck+1 b. 25 Apr 1720, d. 17 Jul 1788
- Pieter Hartsinck+1 b. 27 Apr 1722, d. 1775
- Cornelis Hartsinck+1 b. 10 Jan 1730, d. c 9 Jun 1778
- Johanna Eva Hartsinck+1 b. 27 Mar 1732, d. 11 Sep 1802
Georgiana Maria Tufnell1 
From 22 June 1848, her married name became Glyn. After her marriage, Georgiana Maria Tufnell was styled as Baroness Wolverton on 24 July 1873.
Hon. Caroline Trefusis1 
- [S988] Cornwall OPC Database, online http://www.cornwall-opc-database.org/. Hereinafter cited as Cornwall OPC Database.
Hon. Emily Harriet Trefusis1 
- [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.”
Hon. Adela Elizabeth Trefusis1 
- [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.”
Shelagh Rosamund Gwyneth Pugh1 
From 1929, her married name became Tregoning.1 From 1939, her married name became Sandes.1
- [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.”
Doris M. E. Josselyn1
From 1935, her married name became Tregoning.1
Child of Doris M. E. Josselyn and William Leonard Tregoning
- Judy Sophia Tregoning+1 b. 1936
- [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.”
William Edward Cecil Tregoning1 
Children of William Edward Cecil Tregoning and Annie Phillips
- William Leonard Tregoning+1 b. 19 Aug 1902, d. Jan 1991
- George Edward Tregoning1 b. 1904
- Ethel Dorothea Tregoning1 b. 1908
- David Bevill Tregoning1 b. 1909
- Colonel John Langford Tregoning+1 b. 12 Oct 1909, d. 1976
- [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.”
