| Clark | J | | | Source: QSA and KSA medal rolls | 82nd Battery, RFA |
| Clark | J | 4170 | Private | 4th Battalion
Demise: Killed in action 07 Jun 1901
Place: Kaffir Kraal Nr
Source: In Memoriam by S Watt | Bedfordshire Regiment |
| Clark | J | 32964 | Gunner | Died of disease at Pietermaritzburg. 9 Feb 1900.
Source: Natal Field Force Casualty Roll, page 26 line 21 | 78th Battery, RFA |
| Clark | J A | | Trooper | Natal 1906 (1)
Source: Recipients of the Natal 1906 Medal | Transvaal Mounted Rifles |
| Clark | J A | 3924 | Sergeant | Missing in action. Kroonstad, 5 June 1900
2nd Battalion. Rejoined
Source: South African Field Force Casualty Roll | Norfolk Regiment |
| Clark | J A | | | Source: QSA and KSA medal rolls | New Zealand, 3rd Contingent |
| Clark | J A | | | 2nd Battalion
Source: QSA and KSA medal rolls | Royal Dublin Fusiliers |
| Clark | J A M A | | Captain | QSA (3) Nat OFS Tr. KSA (2)
Source: QSA medal rolls | Royal Marines |
| Clark | J D | 25887 | Trooper | Source: QSA Medal Rolls | 19th Company, 6th Btn, IY |
| Clark | J Dalrymple | | Captain | Source: Nominal roll in WO127 | Prince of Wales Light Horse |
| Clark | J E | 4429 | Sergeant | Killed in action. Leeuwkop, 1 April 1902
Source: South African Field Force Casualty Roll | 2nd Dragoon Guards (Queen's Bays) |
| Clark | J E | 4429 | Sergeant | QSA (5). Killed, Leeuwkop, 01 Apr 02.
Source: QSA medal rolls | 2nd Dragoon Guards (Queen's Bays) |
| Clark | J E | 4429 | Sergeant | Demise: Killed in action 01 Apr 1902
Place: Leeuwkop
Source: In Memoriam by S Watt | 2nd Dragoon Guards (Queen's Bays) |
| Clark | J G | | | 1st Battalion
Source: WO100/281 | Grahamstown TG |
| Clark | J G | | | A Division
Source: QSA and KSA medal rolls | South African Constabulary |
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