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- [S692] Information: Judy Cormack.
- [S1447] _Births, Deaths and Marriages, NSW, Ralph R Allsop; Birth; Index; 30858; 1909; Tenterfield.
- [S1443] _Births, Deaths and Marriages, Queensland, Ralph Reginald Allsop; Death; Index; 53678; 1989.
- [S1447] _Births, Deaths and Marriages, NSW, Robert Allsop + Ada E Simpson; Marriage; Index; 5005; 1902; St Leonards.
- [S1447] _Births, Deaths and Marriages, NSW, Ralph Reginald Allsop + Marcelle Olga Purtell; Marriage; Index; 29717; 1941; Marrickville.
- [S1395] Sydney, Australia, Anglican Parish Registers, 1814-2011 [A], Marriage; Ralph Reginald Allsop + Marcelle Olga Purtell; 6 December 1941; Marrickville, St Clement; Page 32; No. 64; 15 June 2025.
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