| Sinden | Thomas W | 63 | Trooper | Source: Nominal roll in WO127 |
| Sinden | Thos Wm | | | Source: WO100/263 |
| Sjothan | Herbert William | 113 | Trooper | Source: Nominal roll in WO127 |
| Sjothun | Halr Wm | | | Source: WO100/263 |
| Skelton | F | | Lieutenant | Source: Nominal roll in WO127 |
| Skelton | James | 45 | Trooper | Source: Nominal roll in WO127 |
| Skelton | James | | | Source: WO100/263 |
| Skelton | James Adair | | | Source: WO100/263 |
| Slater | Semple Fleming | 651 | Trooper | Source: Nominal roll in WO127 |
| Slater | Temple Fleming | | | Source: WO100/263 |
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