| Mellon | Thomas | 3186 | Trooper | Source: Nominal roll in WO127 |
| Melrose | James Anderson | 4008 | Trooper | Source: Nominal roll in WO127 |
| Melville | Athelstan Stephen | 3290 | Trooper | Source: Nominal roll in WO127 |
| Mercer | Frank Cockburn | | Lieutenant | Source: Nominal roll in WO127 |
| Meredith | Raymond Leonard | 4540 | Trooper | Source: Nominal roll in WO127 |
| Meyrick | James | 23227 | Trooper | Source: Nominal roll in WO127 |
| Middleton | G Anstien ? | | Capt/Adj | Source: Nominal roll in WO127 |
| Milburn | Thomas | 23581 | Farr/Corporal | Source: Nominal roll in WO127 |
| Miles | Frederick | 9753 | Sergeant | Source: Nominal roll in WO127 |
| Miles | J | 9742 | Trooper | Wounded and missing. Nooitgedacht, 13 December 1900
Rejoined
Source: South African Field Force Casualty Roll |
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