| Armstrong | James | | | 1st Battalion
Source: QSA and KSA medal rolls | Scots Guards |
| Armstrong | James | 41865 | Trooper | No known Company. Served in 35th Btn IY
Source: QSA Medal Rolls | Imperial Yeomanry |
| Armstrong | James | 41283 | Trooper | No known Company. Served in 36th Btn IY
Source: QSA Medal Rolls | Imperial Yeomanry |
| Armstrong | James | 1441 | Private | Source: QSA Medal Rolls | 17th Company, 6th Btn, IY |
| Armstrong | James Ernest Lorraine | 2254 | Private | Source: OZ-Boer database | Victoria, 4th Battalion Australian Commonwealth Ho |
| Armstrong | James Henry | | Trooper | Source: Nominal roll in WO127 | Nesbitt's Horse |
| Armstrong | James John | | | | Town Guard and District Mounted Troops |
| Armstrong | James Matthew | 4303 | Private | Source: QSA Medal Rolls | 62nd Company, 11th Btn, IY |
| Armstrong | James St G P | | Trooper | Unit: D. troop. Nationality: Irish. Age: 24, Address: Garry Castle, Bandghes, King/'s Co, Ireland.
Source: List of Jameson raiders | Unknown |
| Armstrong | James St George P | | Lieutenant | Source: QSA Medal Rolls | 7th Company, 4th Btn, IY |
| Armstrong | James Wadworth | 9386 | Trooper | Source: Nominal roll in WO127 | Kitchener's Horse |
| Armstrong | James William | 36758 and 26 | Trooper | 1st Battalion
Source: Nominal roll in WO127 | Imperial Light Horse |
| Armstrong | Jas Adam | | Corporal | BSACM Mashonaland 1897 (0).
Source: BSACM rolls | British South Africa Police |
| Armstrong | Jock Kingsley | 20388 | Trooper | Source: Nominal roll in WO127 | Prince of Wales Light Horse |
| Armstrong | John | | Bearer | Joined 09 Dec 99
Source: Nominal roll in WO127 | Natal Volunteer Ambulance Corps |
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