| Sources |
- [S1447] _Births, Deaths and Marriages, NSW, William A Allsop; Birth; Index; 30045; 1895; Ashfield.
- [S814] Newspaper: Adelaide Advertiser, SA, Pub. 15 Nov 1935; p.9.
- [S1429] Newspaper: Sydney Morning Herald (Sydney, NSW : 1842 - 1954) [TROVE], Article; Murder and Suicide of William Allen Allsop and his wife, Ivy Gladys Allsop; 26 November 1935.
- [S1442] _Births, Deaths and Marriages, Victoria, William Allen Allsop; Death; Index; 10326; 1935; Essendon North.
- [S1133] The Greater Metropolitan Cemeteries Trust, Vic, William Allen Allsop; 1574337; Fawkner memorial Park; Interred; 9 July 2024.
- [S1443] _Births, Deaths and Marriages, Queensland, Henry Allen Allsop + Emily Grace Edwards; Marriage; Index; C262; 1891.
- [S1442] _Births, Deaths and Marriages, Victoria, William Allen Allsop + Ivy Sylvia Gladys Molloy; Marriage; Index; 7613; 1922.
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