| Johnstone | Wm E | 4065 | | Source: Medal rolls | Canada, 2nd Royal Canadian Regiment of Infantry |
| Johnstone-Smith | E J | | Trooper | Demise: Suicide 24 Sep 1901
Place: Mahlabatini
Source: In Memoriam by S Watt | Natal Police |
| Johnstone? | W | | | Source: QSA and KSA medal rolls | New Zealand, 10th Contingent |
| Johnstoon | C | | | Source: QSA and KSA rolls | DEOVR |
| Johnz | Johannes A | | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | German volunteers |
| Johonsen | John | 3155 and 414 | Trooper | 1st Battalion
Source: Nominal roll in WO127 | Imperial Light Horse |
| Johson | J | | | 3rd Volunteer Company
Source: QSA and KSA medal rolls | Northumberland Fusiliers |
| Johst | Balthasar Carl Louis | | Burger | Commando: Commandant Schiel. Click here to access the record in the Forum | Boer Forces |
| Johst | Balthazar Carl Louis | | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | German volunteers |
| Johsua | | | | | Geoghegan's Scouts |
| Johsua | | | Scout | Source: Nominal roll in WO127 | Geoghegan's Scouts |
| Johustone | A W | | | Source: QSA and KSA medal rolls | New Zealand, 5th Contingent (Imperial Bushmen) |
| Joice | C | | | 2nd Battalion
Source: QSA and KSA medal rolls | Northamptonshire Regiment |
| Joice | C P | | | A Division
Source: QSA and KSA medal rolls | South African Constabulary |
| Joice | Henry | | | 1st Battalion
Source: QSA and KSA rolls | Imperial Light Horse |
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