| Clark | J W | | | Source: QSA and KSA medal rolls | South African Constabulary |
| Clark | J W | | | Source: WO100/279 | Natal Government Railways |
| Clark | J W | 9521 | Sapper | Discharged. QSA (3) sent 24 May 1904.
QSA (3) Tr SA01 SA02
TNA ref 159/55; 159/74 | Royal Engineers, Telegraph Battalion |
| Clark | JA | 544 | Private | Source: OZ-Boer database | New South Wales, NSW Citizen's Bushmen |
| Clark | Jack | 3042 | Trooper | 1st Battalion
Source: Nominal roll in WO127 | Imperial Light Horse |
| Clark | James | 21117 | Trooper | Source: QSA Medal Rolls | 17th Company, 6th Btn, IY |
| Clark | James | | | Prisoner number: 22656
Captured: Waterval 07 Sep 1901
Sent to: India, Shahjahanpur
Age: 33
Address: Waterval
Source: Anglo Boer War Museum 2016 | Boer Forces |
| Clark | James | 477 | Corporal | Source: OZ-Boer database | Victoria, 4th Imperial Contingent |
| Clark | James | 460 | Private | Source: OZ-Boer database | Victoria, 4th Imperial Contingent |
| Clark | James | 37181 | Trooper | Served 05 Nov 01 to 03 Sep 02. Discharged Aldershot
Source: Nominal roll in WO127 | Scottish Horse |
| Clark | James | | | Source: QSA and KSA medal rolls | Western Province Mounted Rifles |
| Clark | James | | Corporal | QSA (3)
Source: List of QSAs with the clasp Defence of Kimberley | Kimberley TG |
| Clark | James | 44814 | Trooper | No known Company. Served in 36th Btn IY
Source: QSA Medal Rolls | Imperial Yeomanry |
| Clark | James | 40455 | Trooper | No known Company. Served in 37th Btn IY
Source: QSA Medal Rolls | Imperial Yeomanry |
| Clark | James | 476 | Trooper | Source: OZ-Boer database | New South Wales, NSW Lancers |
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