| Allen | W | | | 2nd Battalion
Source: QSA and KSA medal rolls | East Surrey Regiment |
| Allen | W | | | Source: QSA and KSA medal rolls | Coldstream Guards |
| Allen | W | 77551 | Gunner | Died of disease. Bloemfontein, 22 June 1900
Source: South African Field Force Casualty Roll | RGA, Eastern Division, 5th Company |
| Allen | W | 4586 | Private | Prisoner. Derdepoort, 11 July 1900
Released
Source: South African Field Force Casualty Roll | 17th (The Duke of Cambridge's Own) Lancers |
| Allen | W | 3374 | Private | Prisoner. Roodeval, 7 June 1900
4th Battalion.
Source: South African Field Force Casualty Roll | (Sherwood Foresters) Derbyshire Regiment |
| Allen | W | 4488 | Private | Prisoner. Stormberg, 10 December 1899
2nd Battalion.
Source: South African Field Force Casualty Roll | Royal Irish Rifles |
| Allen | W | 3258 | Private | Severely wounded. Holland, 19 December 1901
2nd Battalion. 14 Ml
Source: South African Field Force Casualty Roll | Gloucestershire Regiment |
| Allen | W | | | Source: QSA and KSA medal rolls | 74th Battery, RFA |
| Allen | W | 5004 | Sergeant | Slightly wounded. Near Rooi Krantz, 10 January 1902
2nd Battalion.
Source: South African Field Force Casualty Roll | (Duke of Wellington's) West Riding Regiment |
| Allen | W | 4586 | Private | Wounded. Rietfontein, 24 September 1900
Source: South African Field Force Casualty Roll | 17th (The Duke of Cambridge's Own) Lancers |
| Allen | W | | | 2nd Battalion
Source: QSA and KSA medal rolls | Royal Irish Rifles |
| Allen | W | 2294 | Private | 1st Battalion
Demise: Died of wounds 18 Feb 1900
Place: Paardeberg
Source: In Memoriam by S Watt | (Princess of Wales's Own) Yorkshire Regiment |
| Allen | W | | | 2nd Battalion. Attached Burma Mounted Infantry
Source: QSA and KSA medal rolls | (Duke of Wellington's) West Riding Regiment |
| Allen | W | | | 3rd Battalion
Source: QSA and KSA medal rolls | Royal Irish Rifles |
| Allen | W | | Trooper | Source: Nominal roll in WO127 | Gorringe's Flying Column |
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