Robert Masterson1
- [S3921] Ginny Schilt, “re: Masterson Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 20 August 2009. Hereinafter cited as “re: Masterson Family.”
Engr. Captain George FitzGerald Croker1 
He was educated at Royal Naval Engineering College, Devonport, Devon, EnglandG.1 He gained the rank of Engineer-Captain in the Royal Navy.1 He fought in the First World War.1 He fought in the Second World War.1 He was appointed Companion, Order of the Bath (C.B.) in 1946.1
Children of Engr. Captain George FitzGerald Croker and Amy Edwards
- Patrick Crofton Croker2 b. 21 Sep 1915, d. 23 Dec 1915
- Yvonne Doris Croker+2 b. 18 Mar 1919
Captain Patrick Edwards1
Child of Captain Patrick Edwards
- Amy Edwards+2 d. 27 May 1953
Amy Edwards1 
From 30 January 1914, her married name became Croker.
Children of Amy Edwards and Engr. Captain George FitzGerald Croker
- Patrick Crofton Croker2 b. 21 Sep 1915, d. 23 Dec 1915
- Yvonne Doris Croker+2 b. 18 Mar 1919
Patrick Crofton Croker1 
Yvonne Doris Croker1
From 13 January 1940, her married name became van der Byl. She lived in 1976 at 15 Trafalgar Place, Lymington, Hampshire, EnglandG.1
Children of Yvonne Doris Croker and Captain Voltelin James Howard van der Byl
- Susan Janet van der Byl+2 b. 1 Apr 1944
- Simon Adrian Voltelin van der Byl2 b. 1 Nov 1945
- Diana Rosemary van der Byl2 b. 20 Nov 1951
Colonel Voltelin Albert William van der Byl1 
He was appointed Officer, Order of the British Empire (O.B.E.)2 He lived at Cape Town, Cape Province, South AfricaG.1
Child of Colonel Voltelin Albert William van der Byl and Constance Margaret Jackson
- Captain Voltelin James Howard van der Byl+4 d. Sep 1968
- [S47] BIFR1976 page 297. See link for full details for this source. Hereinafter cited as. [S47]
- [S5792] Robin Dening, “re: Rochfort Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 2 January 2012. Hereinafter cited as “re: Rochfort Family.”
- [S266] World War II Unit Histories – Officers, online http://www.unithistories.com/units_index/default.asp?file=../officers/personsx. Hereinafter cited as World War II Unit Histories – Officers.
- [S47] BIFR1976. [S47]
David Francis Fitzgerald1 
Child of David Francis Fitzgerald and Victoria Maud Steward
- William David Fitzgerald+2 b. 22 Aug 1926
- [S1916] Tim Boyle, “re: Boyle Family,” e-mail message to BENR, 16 September 2006. Hereinafter cited as “re: Boyle Family.”
- [S9831] Leander Fitzgerald, “re: Fitzgerald Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 19 Aug 2023. Hereinafter cited as “re: Fitzgerald Family.”
Simon Adrian Voltelin van der Byl1
At Hurstpierpoint School, Hurstpierpoint, Sussex, EnglandG, (an unknown value.)1 He was educated at Royal Naval College, Dartmouth, Devon, EnglandG.1 He gained the rank of Lieutenant in the Royal Navy.1 He graduated from Jesus College, Cambridge University, Cambridge, Cambridgeshire, EnglandG, with a Bachelor of Arts (B.A.)1
Lawrence Brereton Steward1 