| | Name | Given Name | Initials | Regiment | Unit | Cemetery | Country | Locality | Date of Death |
 |  | SCHEEPERS | FREDERIK JOHANNES JACOBUS | F J J | Mounted Commandos, S.A. Forces | Waterberg Commando | GROOTVLEI FARM CEMETERY | South Africa | Limpopo Province | 1914-11-20 |
| | | SCHEEPERS | MARTHINUS ESAIAS | M E | Mounted Commandos, S.A. Forces | A Commando | SENEKAL OLD CEMETERY | South Africa | Free State | 1914-11-20 |
| | | SCHOEMAN | | S J | Mounted Commandos, S.A. Forces | Deniker's Commando | KROONSTAD OLD CEMETERY | South Africa | Free State | 1914-11-27 |
| | | SEYFFERT | WILLEM JACOBUS | W J | Mounted Commandos, S.A. Forces | Potchefstroom Commando | GOEDGEVONDEN FARM BURIAL GROUND, KLERKSDORP | South Africa | North West Province | 1915-03-20 |
| | | SHAW | THOMAS HENRY | T H | Mounted Commandos, S.A. Forces | Celliers Commando | HENNENMAN (EDEN) CEMETERY | South Africa | Free State | 1914-12-06 |
| | | SMIT | CORNELIUS JOHANNES | C J | Mounted Commandos, S.A. Forces | Pietersburg Commando | KARIBIB CEMETERY | Namibia | | 1915-05-25 |
| | | SMIT | JOHANNES JACOBUS | J J | Mounted Commandos, S.A. Forces | Carnarvon Commando | WARMBAD CEMETERY | Namibia | | 1915-02-03 |
| | | SPENCE | JAMES | J | Mounted Commandos, S.A. Forces | Cullinan's Horse | KAMDEN CEMETERY | South Africa | Northern Cape | 1915-02-28 |
| | | STEENKAMP | ANDRIES JOHANNES HENDRIK | A J H | Mounted Commandos, S.A. Forces | Brand's Column | BLOEMFONTEIN (IN MEMORIAM) CEMETERY | South Africa | Free State | 1914-11-13 |
| | | STEYN | PETRUS PAULUS | P P | Mounted Commandos, S.A. Forces | Bethal Commando | SWAKOPMUND MUNICIPAL CEMETERY | Namibia | | 1915-03-03 |