| Kaiser | Willem | | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 |
| Kalk | Willem | | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 |
| Kaltenbach | R | | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 |
| Kalwey | ? | | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 |
| Karlsen | Eduard | | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 |
| Karnsseit | Emil | | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 |
| Karstens | G | | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 |
| Kauffman | Carl Jacob | | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 |
| Keimer | ? | | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 |
| Kemper | Frederick | | | Volunteer from Germany serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 |
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