| Arnold | Marthinus | 119 | Trooper | Source: Nominal roll in WO127 | Namaqualand Border Scouts |
| Arnold | Matthew | 280 | | Source: Medal rolls | Canada, 2nd Canadian Mounted Rifles |
| Arnold | N | | | Source: QSA and KSA rolls | Natal Police |
| Arnold | N | | Trooper | Natal 1906 (1)
Source: Recipients of the Natal 1906 Medal | Natal Police |
| Arnold | O | | | 2nd Battalion
Source: QSA and KSA medal rolls | Northamptonshire Regiment |
| Arnold | O | 29830 | Driver | QSA issued 12 Aug 1908.
QSA (2) CC OFS
TNA ref 160/51 | Royal Engineers, Field Park, 1st |
| Arnold | Otto | | | Source: WO100/284 | Paarl DMT |
| Arnold | P | | | Source: QSA and KSA medal rolls | 67th Battery, RFA |
| Arnold | Percy | 32251 | Private | Source: QSA Medal Rolls | 109th Company, 3rd Btn, IY |
| Arnold | Perry | | | Source: QSA and KSA medal rolls | 67th Battery, RFA |
| Arnold | R | 3630 | Private | Demise: Killed in action 14 Aug 1901
Place: Basfontein Tvl
Source: In Memoriam by S Watt | 6th Dragoon Guards (Carabiniers) |
| Arnold | R | 2773 | Private | 2nd Battalion
Demise: Died of disease 18 Aug 1900
Place: Pretoria
Source: In Memoriam by S Watt | Royal Irish Rifles |
| Arnold | R | 3930 | Private | QSA (5). Severe Wound, Strydfontein, 02 Dec 00. Number '3830' on Casualty Roll. .
Source: QSA medal rolls | 17th (The Duke of Cambridge's Own) Lancers |
| Arnold | R | 3630 | Private | QSA (3). Killed, Basfontein, 14 Aug 01.
Source: QSA medal rolls | 6th Dragoon Guards (Carabiniers) |
| Arnold | R | 50B/849 | Private | Frontier Wars. SAGS (1) 1879 | (Duke of Cambridge's Own) Middlesex Regiment |
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