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- [S1292] 1901 England Census [A], Household of Walter Allsopp; Yorkshire; Rochdale; RG13/3831; Folio: 132; Page: 13; Schedule 96; ED 9; 1 February 2025.
- [S1312] UK Civil Registrations [GRO], Annie Allsopp; Birth; 1894; March; Saddleworth; Vol.9a; Page 243; 1 February 2025.
- [S1282] 1939 England and Wales Register [A], Household of Harry Kitching; Yorkshire; Leeds; RG101/3489G; Line 6; Schedule 25; ED Kgxx; RD 501-2; 4 February 2025.
- [S1312] UK Civil Registrations [GRO], Walter Allsopp + Sarah Fitton; Marriage; 1883; December; Dewsbury; Vol. 9b; Page 1017; 1 March 2025.
- [S1238] West Yorkshire, England, Church of England Marriages and Banns, 1813-1935 [A], Walter Allsopp + Sarah Ann Fitton; 2 December 1883; Mirfield, St Mary; Page 187; No.373; 1 February 2025.
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