| Mansergh | H S | | Lieutenant | Resigned 30 Jun1902
Source: Nominal roll in WO127 |
| Mansfield | Robert Jonathan George | 55046 | Trooper | Source: Nominal roll in WO127 |
| Marmsworth | Robert William | 58543 | Trooper | Source: Nominal roll in WO127 |
| Marney | F | 4215 | Trooper | Source: Nominal roll in WO127 |
| Marr | A | 946 | Private | Slightly wounded at Colenso. 15 Dec 1899.
Source: Natal Field Force Casualty Roll, page 232 line 26 |
| Marr | Alexander | 946 | Trooper | Discharged 4 May1900 at own request
Source: Nominal roll in WO127 |
| Marshall | Charles B | 3470 | Trooper | Discharged at own request 5 Mar 1901
Source: Nominal roll in WO127 |
| Marshall | Frederick William | 40886 | Trooper | Discharged 7 May1902 at own request
Source: Nominal roll in WO127 |
| Marshall | Harry Herbert | 5425 | Trooper | Source: Nominal roll in WO127 |
| Marshall | John | 1321 | Trooper | Source: Nominal roll in WO127 |
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