| Roeder | Fred | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | German volunteers |
| Roëland | E C | | Volunteer from France serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | French volunteers |
| Roelse | Huibrecht | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | German volunteers |
| Rogel | Felix Ernst Louis Marie | | Volunteer from France serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | French volunteers |
| Rogers | J | | Volunteer from America serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | American volunteers |
| Rogers | John J | | Chicago Corps
Volunteer from America (Irish) serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | American volunteers |
| Rohdin | Hugo | | Volunteer from Sweden serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Scandinavian volunteers |
| Röhrs | Wilhelm | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | German volunteers |
| Roissdorf | ? | | Volunteer from Sweden serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Scandinavian volunteers |
| Romswinckel | H A | | Volunteer from Holland / Belgium serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Belgian and Dutch volunteers |
| Ronning | Andreas | | Volunteer from Norway serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Scandinavian volunteers |
| Roodbergen | F | | Volunteer from Holland / Belgium serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Belgian and Dutch volunteers |
| Roorda | Adriaan | | Volunteer from Holland / Belgium serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Belgian and Dutch volunteers |
| Rose | A C | | Volunteer from America serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | American volunteers |
| Rosenbaum | Fridolien | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | German volunteers |
| Rosendaal | Thijs | | Volunteer from Holland / Belgium serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Belgian and Dutch volunteers |
| Ross | Armand | | Volunteer from France serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | French volunteers |
| Rossan | G L | | Volunteer from Sweden serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Scandinavian volunteers |
| Rossegger | Edgardo (Cap ) Da Trieste | | Volunteer from Italy serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Other volunteers |
| Rossignoli | Giovanni Battista | | Volunteer from Italy serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Other volunteers |
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