| Klapert | ? | | | Volunteer from Switzerland serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Swiss volunteers |
| Klapka | A C | | | Source: QSA and KSA rolls | Natal Police |
| Klapka | A C | | Sgt | Natal 1906 (0)
Source: Recipients of the Natal 1906 Medal | Durban Military Reserves |
| Klapper | Paul | | | Prisoner number: 121
Captured: Pieters Hill 27 Feb 1900
Sent to: Ceylon, Diyatalawa
Address: Randfonteinstatie
Source: Anglo Boer War Museum 2016 | Boer Forces |
| Klares | C | | | Source: QSA and KSA rolls | Cape Garrison Artillery |
| Klarke | Jack W | | | Source: WO100/280 | Cala Town Guard |
| Klasea | K | | Private | Frontier Wars. SAGS (1) 1879 | Herschel Mounted Volunteers |
| Klasen | S | | | Source: WO100/280 | Clanwilliam Convoy Guard |
| Klasen | S | 100 | Corporal | Source: Nominal roll in WO127 | Clanwilliam Convoy Guard |
| Klasing | Jacobus Coenraad | | | Volunteer from Holland / Belgium serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Belgian and Dutch volunteers |
| Klasoen | | | | | Geoghegan's Scouts |
| Klasoen | | | Scout | Source: Nominal roll in WO127 | Geoghegan's Scouts |
| Klass | | | Leader | BSACM Rhodesia 1896 (0).
Source: BSACM rolls | Colenbrander's Cape Boys |
| Klass | | | Trooper | Frontier Wars. SAGS (1) 1877-8 | Bolotwa Tembus |
| Klass | | 2529 | Native Trooper | Missing in action. Pen Hoek, 5 December 1899
Source: South African Field Force Casualty Roll | Cape Mounted Rifles |
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