| Allen | William | | | Source: QSA and KSA medal rolls | New Zealand, 10th Contingent |
| Allen | William | 2028 | | Source: Attestation papers. See image on this site. | Railway Pioneer Regiment |
| Allen | William | 88 | | Source: Medal rolls | Canada, 2nd Canadian Mounted Rifles |
| Allen | William | 1184 | | Attested: Oct 1896. Source: CMP1 | Cape Police |
| Allen | William | 43427 | Trooper | No known Company. Served in 29th Btn IY
Source: QSA Medal Rolls | Imperial Yeomanry |
| Allen | William | 42285 | Trooper | No known Company. Served in 38th Btn IY
Source: QSA Medal Rolls | Imperial Yeomanry |
| Allen | William | 41495 | Trooper | No known Company. Served in 38th Btn IY
Source: QSA Medal Rolls | Imperial Yeomanry |
| Allen | William | 14203 | Trooper | Source: QSA Medal Rolls | 47th Company, 13th Btn, IY |
| Allen | William | 28345 | Private | Source: Nominal roll in WO127 | Rand Rifles |
| Allen | William | 38066 | Trooper | Discharged 26 May 02 time expired
Source: Nominal roll in WO127 | South African Light Horse |
| Allen | William | 35411 | Trooper | Source: QSA Medal Rolls | 70th Company, 18th Btn, IY |
| Allen | William | 1641 | Sapper | Part of detachment stationed in St Helena. To Army Reserve. QSA sent 22 Oct 1903.
QSA (0)
TNA ref 161/36; 161/41 | Royal Engineers, Fortress Company, 43rd |
| Allen | William | 29426 | 2nd Corporal | KSA issued 19 Aug 1903.
QSA (4) Belm MR OFS Tr. KSA
TNA ref 156/2 | Royal Engineers, Railway Company, 8th |
| Allen | William | 2028 | Private | 3rd RPR
Source: Nominal roll in WO127 | Railway Pioneer Regiment |
| Allen | William | 20768 | Trooper | Joined 19 Dec 00
Source: Nominal roll in WO127 | Nesbitt's Horse |
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