| Osmaston | Osmond Gordon | 398 | Trooper | BSACM Mashonaland 1897 (0).
Source: BSACM rolls | British South Africa Police |
| Osterberg | A M | | Trooper | BSACM Rhodesia 1896 (0).
Source: BSACM rolls | Salisbury Field Force |
| Osterberg | Andrew M | | Trooper | BSACM Rhodesia 1896 (0).
Source: BSACM rolls | Gwelo Volunteers |
| Oswald | C | | Trooper | BSACM Rhodesia 1896 (0).
Source: BSACM rolls | Gwelo Volunteers |
| Othick | Thomas | 4079 | Private | BSACM Matabeleland 1893 (0).
Source: BSACM rolls | (Duke of Wellington's) West Riding Regiment |
| Ottey | W | 2409 | SQMS | BSACM Rhodesia 1896 (0).
Source: BSACM rolls | Army Ordnance Corps |
| Otto | | | Trooper | BSACM Rhodesia 1896 (0).
Source: BSACM rolls | Bulawayo Field Force |
| Otto | U | | Trooper | BSACM Rhodesia 1896 (0).
Source: BSACM rolls | Gifford's Horse |
| Outram | Fred | 3807 | Private | BSACM Matabeleland 1893 (0). BSACM Rhodesia 1896 (3807. Pte. Fred Outram. 2. W. Rid. Regt.). DNW December 2017 £360.
Source: BSACM rolls | (Duke of Wellington's) West Riding Regiment |
| Outram | I (Or J) | | Gunner | BSACM Rhodesia 1896 (1) Mashonaland 1897. 1897: Tpr. Umtali Vol. Corps.
Source: BSACM rolls | Umtali Volunteer Corps |
| Overman | Albert S | 501 | Trooper | BSACM Mashonaland 1897 (0).
Source: BSACM rolls | British South Africa Police |
| Overstall | Fredk | 144 | Trooper | BSACM Rhodesia 1896 (1) Mashonaland 1897.
Source: BSACM rolls | British South Africa Police |
| Owen | C | | Trooper | BSACM Rhodesia 1896 (0).
Source: BSACM rolls | Gifford's Horse |
| Owen | F C | | Trooper | BSACM Rhodesia 1896 (0).
Source: BSACM rolls | Salisbury Field Force |
| Owen | Ralph N | 144 | Trooper | BSACM Mashonaland 1897 (0).
Source: BSACM rolls | British South Africa Police |
| Owens | W O | | Trooper | BSACM Matabeleland 1893 (0).
Source: BSACM rolls | Salisbury Horse |
| Oxden-Willows | T | | Sergeant Major | BSACM Rhodesia 1896 (0).
Source: BSACM rolls | Matabeleland Relief Force |
| Oxley | E | | Trooper | BSACM Rhodesia 1896 (0).
Source: BSACM rolls | Salisbury Field Force |
| Packe | C J | | Trooper | BSACM Rhodesia 1896 (0).
Source: BSACM rolls | Bulawayo Field Force |
| Paddock | G | | Trooper | BSACM Rhodesia 1896 (1) Mashonaland 1897. 1897: Tpr. Garrison Vols.
Source: BSACM rolls | Victoria Rifles |
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