| O'Kelly | P | 1858 | Trooper | 1st Life Guards. QSA (6). .
Source: QSA medal rolls | Life Guards |
| O'Kelly | P | | | 2nd Battalion
Source: QSA and KSA medal rolls | Scots Guards |
| O'Kelly | P | | | 1st Battalion
Source: QSA and KSA medal rolls | Life Guards |
| O'Kelly | Q | | | Volunteer from America serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | American volunteers |
| O'Kelly | R | 192 | Trooper | Wounded. Wolverhoek, 1 October 1900
Source: South African Field Force Casualty Roll | Loch's Horse |
| O'Kelly | R A D E P | | Trooper | Demise: Died of wounds 06 Oct 1900
Place: Wolwehoek + Kroonstad
Source: In Memoriam by S Watt | Loch's Horse |
| O'Kelly | Raymond P | 102 | Trooper | Source: Nominal roll in WO127 | Loch's Horse |
| O'Kelly | T M | | | 1st Battalion
Source: QSA and KSA rolls | Imperial Light Horse |
| O'Kelly | Thomas Michael | 29993 | Trooper | Source: Nominal roll in WO127 | Roberts' Horse |
| O'Kelly | Thomas Michael | 2881 and 394 | Trooper | 1st Battalion
Source: Nominal roll in WO127 | Imperial Light Horse |
| O'Kelly | Willem | | | Prisoner number: 1688
Captured: Paardeberg 27 Feb 1900
Sent to: Ceylon, Diyatalawa
Age: 17
Address: Roodepoort
Source: Anglo Boer War Museum 2016 | Boer Forces |
| O'Kennedy | Henry Francis | | | Prisoner number: 6103
Captured: Paardeberg 27 Feb 1900
Sent to: Ceylon, Diyatalawa
Age: 24
Address: Marseilles
Source: Anglo Boer War Museum 2016 | Boer Forces |
| O'Kief | J | | Trooper | BSACM Rhodesia 1896 (0).
Source: BSACM rolls | British South Africa Police |
| O'Kieffe | M C | | | Source: QSA and KSA medal rolls | 5th Battery, RFA |
| O'Kill | F J | | Private | Slightly wounded. Leeuwfontein, 24 April 1902
Source: South African Field Force Casualty Roll | Driscoll's Scouts |
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