| Siddle | E | | | Source: QSA and KSA rolls |
| Sinclair | M | | | Source: QSA and KSA rolls |
| Sinclair | R | | | Source: QSA and KSA rolls |
| Smith | G | | | Source: QSA and KSA rolls |
| Spicer | R | 323 | Lance Corporal | Demise: Died of injuries - accident 30 Sep 1901
Place: Mafikeng
Source: In Memoriam by S Watt |
| Stoneham | W | | | Source: QSA and KSA rolls |
| Sullivan | T | | | Source: QSA and KSA rolls |
| Symes | S | | | Source: QSA and KSA rolls |
| Syson | B | | | Source: QSA and KSA rolls |
| Taylor | J | | | Source: QSA and KSA rolls |
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