| Ohlsen | C | | Private | Frontier Wars. SAGS (1) 1877-8. Medal returned | Buffalo Volunteer Rifles and Levy |
| Ohlsen | Hilmer | 20024 | Trooper | 2nd Brabant's Horse
Source: Nominal roll in WO127 | Brabant's Horse |
| Ohlsen | J | | | Source: QSA and KSA medal rolls | Frontier Light Horse |
| Ohlsen | J | 127 | Trooper | Frontier Wars. SAGS (1) 1877-8-9 | Frontier Light Horse |
| Ohlson | C | | Private | 2nd Btn. Died on service. Natal 1906 (1)
Source: Recipients of the Natal 1906 Medal | Royston's Horse |
| Ohlson | Charles | | | Volunteer from Sweden serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Scandinavian volunteers |
| Ohlson | G A | | Private | 2nd Btn. Natal 1906 (1)
Source: Recipients of the Natal 1906 Medal | Royston's Horse |
| Ohlson | H | | | Source: Attestation paper in WO126 | Brabant's Horse |
| Ohlson | James | 4164 | Trooper | Source: Nominal roll in WO127 | SAMIF |
| Ohlssen | Charles | | | Prisoner number: 17614
Captured: Komatiepoort 07 Jan 1901
Sent to: Unknown
Age: 47
Address: Waterval Onder
Source: Anglo Boer War Museum 2016 | Boer Forces |
| Ohlssen | F | 681 | Private | Wounded. Near Hammonia, 28 May 1900
2nd Battalion.
Source: South African Field Force Casualty Roll | Brabant's Horse |
| Ohlsson | C | 540 | Private | Slightly wounded. Boschbult, 31 March 1902
2nd Battalion.
Source: South African Field Force Casualty Roll | Kitchener's Fighting Scouts |
| Ohlsson | C | | | Captain MacDonald's Squadron
Source: QSA and KSA medal rolls | Cape Colonial Forces |
| Ohlsson | Charles George | 183 and 3604 | Trooper | Served in 2nd KFS. Joined Cape Town 31 Jul 01 Discharged 7 Jul 02 disbandment
Source: Nominal roll in WO127 | Kitchener's Fighting Scouts |
| Ohlsson | D | | | Source: QSA and KSA rolls | DEOVR |
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