| O’Connor | William | | Volunteer from America (Irish) serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | American volunteers |
| O’Donnell | ? | | Volunteer from America (Irish) serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | American volunteers |
| O’Hara | (O'Hare) Don | | Volunteer from America (Irish) serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | American volunteers |
| O’Keefe | James | | Volunteer from America (Irish) serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | American volunteers |
| O’Leary | Jerry | | Volunteer from America (Irish) serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | American volunteers |
| O’Neil | Arthur | | Volunteer from America (Irish) serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | American volunteers |
| O’Reilly | ? | | Volunteer from America (Irish) serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | American volunteers |
| Paar | E | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | German volunteers |
| Pacand | A | | Volunteer from France serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | French volunteers |
| Pache | ? | Lieutenant | Volunteer from Switzerland serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Swiss volunteers |
| Page | Jeremy | | Volunteer from America (Irish) serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | American volunteers |
| Pahler | E | | Volunteer from America serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | American volunteers |
| Palaczek | Edward Rudolph Theodorus | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | German volunteers |
| Panico | G Da Avigliana | | Volunteer from Italy serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Other volunteers |
| Panoutsos | Cosmos J | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | German volunteers |
| Paré | Leon | | Volunteer from Holland / Belgium serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Belgian and Dutch volunteers |
| Parn | Herman | | Wounded Donkerpoort, Senekal 28/08/01
Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | German volunteers |
| Parsons | G | | Volunteer from America serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | American volunteers |
| Parve | Daniel | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | German volunteers |
| Pasnow | Friedrich H O | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | German volunteers |
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