| Sources |
- [S670] Information: Bruce Allsopp.
- [S1447] _Births, Deaths and Marriages, NSW, Harold W Allsopp; Birth; Index; 49602; 1920; Lismore.
- [S1208] Australian Cemeteries Index [AustCemIndex], Harold Wallace Allsopp; 9080369; Alstonville Cemetery; Interred; 23 August 2025.
- [S1491] The Ryerson Index x, Northern Star (Lismore); Funeral Notice; Harold Wallace Allsopp; 24 January 2008; 7 November 2025.
- [S1491] The Ryerson Index x, Northern Star (Lismore); Funeral Notice; Harold Wallace Allsopp; 25 Jan 2008; 7 Nov 2025.
- [S1447] _Births, Deaths and Marriages, NSW, William L Allsopp + Emma S W Shipway; Marriage; Index; 16402; 1914; Lismore.
- [S1447] _Births, Deaths and Marriages, NSW, Harold Wallace Allsopp + Margaret Elizabeth Smith; Marriage; Index; 21334; 1947; Lismore.
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