| Sources |
- [S978] Ancestry Family Trees, Osborne Family of Kent, England; 200543248; Nigel Osborne; UK; -; 20 November 2025.
- [S1312] UK Civil Registrations [GRO], John Allsopp; Birth; 1925; September; Nottingham; Vol. 7b; Page 569; 20 November 2025.
- [S1312] UK Civil Registrations [GRO], John Allsopp; Death; 1926; September; Nottingham; Vol. 7b; Page 352; 20 November 2025.
- [S1312] UK Civil Registrations [GRO], Harold Allsopp + Beatrice A Martin; Marriage; 1911; December; Nottingham; Vol. 7b; Page 623; 20 November 2025.
- [S1385] Nottinghamshire, England, Church of England Marriages and Banns, 1754-1937 [A], Harold Allsopp + Beatrice Annie Martin; Marriage; Register; Page 140, No. 280; 16 December 1911; Nottingham, St Ann; 20 November 2025.
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