| Johnson | Patrick | | | Source: Attestation paper in WO126 |
| Johnson | Patrick | 30992 | Trooper | Served 01 Apr 01 to 03 Oct 01. Discharged completion of service, Port Elizabeth
Source: Nominal roll in WO127 |
| Johnston | Joseph Allen | | | Source: Attestation paper in WO126 |
| Jolly | Julian | 30181 | Trooper | Served 22 Feb 01 to 12 Feb 02. Discharged completion of service, Port Elizabeth
Source: Nominal roll in WO127 |
| Jolly | Julien | | | Source: Attestation paper in WO126 |
| Jordan | William | | | Source: Attestation paper in WO126 |
| Jordan | William | 34568 | Trooper | Served 24 May 01 to 25 Nov 01. Discharged completion of service, Port Elizabeth
Source: Nominal roll in WO127 |
| Joubert | M | 41224 | Private | Demise: Killed in action 07 Mar 1902
Place: De Klipdrift. Gt Harts River
Source: In Memoriam by S Watt |
| Joubert | M | 41224 | Private | Killed in action. Klipdrift, 7 March 1902
Source: South African Field Force Casualty Roll |
| Joubert | Martinnes | | | Source: Attestation paper in WO126 |
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