| Orrman | A | 4335 | Private | QSA (3).
Source: QSA medal rolls | 14th (The King's) Hussars |
| Orrock | J | | | Source: WO100/283 | Lady Grey TG |
| Orron | W H | 492 | Trooper | Source: Nominal roll in WO127 | Marshall's Horse |
| Orry | J B | | Groom | Died of disease. Elandsfontein, 25 October 1901
Servant to War Correspondent
Source: South African Field Force Casualty Roll | Unknown |
| Orry | J B | | Civilian | Attached
Demise: Died of disease - pneumonia 25 Oct 1901
Place: Elandsfontein
Source: In Memoriam by S Watt | Army Service Corps |
| Orsborn | C M | | | Source: QSA and KSA rolls | DEOVR |
| Orsi Calisto | Genovese | | | Volunteer from Italy serving with the Boer forces
Source: Anglo Boer War Museum database, August 2016 | Other volunteers |
| Orsmond | | | Trooper | Demise: Died 01 Jul 1901
Place: Klerksdorp?
Source: In Memoriam by S Watt | Kimberley Horse |
| Orsmond | A | | | Source: WO100/281 | Jansenville TG |
| Orsmond | Alfred Hugo | | Burger | Click here to access the record in the Forum | Johannesburg Commando |
| Orsmond | Alfred Hugo | | | Prisoner number: 17226
Captured: Roodekop 18 Jan 1901
Sent to: India, Ahmednagar
Age: 20
Address: Ventersdorp
Source: Anglo Boer War Museum 2016 | Boer Forces |
| Orsmond | Andries Jacobus | | Burger | Click here to access the record in the Forum | Krugersdorp Commando |
| Orsmond | Bertie | | | Prisoner number: 14694
Captured: Rust En Vrede 27 Oct 1900
Sent to: South Africa, Green Point
Age: 24
Address: Rust En Vrede
Source: Anglo Boer War Museum 2016 | Boer Forces |
| Orsmond | C | 589 | Trooper | Source: Nominal roll in WO127 | Marshall's Horse |
| Orsmond | C E | | | Source: WO100/281 | Grahamstown Volunteers |
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