| Sources |
- [S710] National Archives of Australia [NAA], Barcode: 5673116.
- [S1447] _Births, Deaths and Marriages, NSW, Jack M Allsopp; Birth; Index; 42325; 1918; Murrumburrah.
- [S962] Military: DVA Nominal Roll, Vviewed; 20 February 2022; Jack Malden Allsopp; NX102140 (N86190); ARMY.
- [S907] Deaths: Sydney Morning Herald Death Index [COMPILED], 11 Jan 2006.
- [S1447] _Births, Deaths and Marriages, NSW, Harold Allsopp + Laurel Bessie Barnes; Marriage; Index; 2096; 1910; Murrumburrah.
- [S1447] _Births, Deaths and Marriages, NSW, Jack Malden Allsopp + Marie Valerie Hummelstad; Marriage; Index; 31950; 1942; North Sydney.
- [S1395] Sydney, Australia, Anglican Parish Registers, 1814-2011 [A], Marriage; Jack Malden Allsopp + Marie Valerie Hummelstad; 20 September 1942; Neutral Bay, St Augustine; Page 21; No. 42; 15 June 2025.
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