| Sources |
- [S1282] 1939 England and Wales Register [A], Household of Charles Allsopp; London; Stepney; RG101/561e; 16 June 2023.
- [S1084] England & Wales, Civil Registration Birth Index, 1837-1915 [A], Charles Allsopp; Birth; 1815; Mar; Cardiff; Vol. 11a; Page 920; 16 June 2023.
- [S1361] Glamorganshire, Wales, Anglican Baptisms, Marriages and Burials, 1570-1994 [A], Baptism; Charles Allsopp; 26 February 1915; Cardiff St Mary; Register No. 1283; 16 June 2023.
- [S1069] UK, British Army World War I Service Records, 1914-1920 [A], George Allsopp; 1915; Cardiff, Wales; Short Service Attestation; Regimental Number: 39614; 16 June 2023.
- [S1037] England & Wales Marriage Index, 1916-2005 [A], Charles Allsopp + Ivy Gower; June Quarter 1934; Stepney; Vol 1cc: Page 445; 16 June 2023.
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