| Armstrong | J | | | Captain MacDonald's Squadron
Source: QSA and KSA medal rolls | Cape Colonial Forces |
| Armstrong | J | 3601 | Private | Source: DCM recipients | Army Ordnance Corps |
| Armstrong | J | 207 | Private | Dangerously wounded. Kllpdrift, 7 February 1902
Source: South African Field Force Casualty Roll | Cape Police |
| Armstrong | J | 3583 | Private | Killed in action. Magersfontein, 11 December 1899
2nd Battalion.
Source: South African Field Force Casualty Roll | Black Watch (Royal Highlanders) |
| Armstrong | J | | | 4th Battalion
Source: QSA and KSA medal rolls | (Prince of Wales's Own) West Yorkshire Regiment |
| Armstrong | J | 6318 | Corporal | Killed in action. Magersfontein, 11 December 1899
2nd Battalion.
Source: South African Field Force Casualty Roll | Black Watch (Royal Highlanders) |
| Armstrong | J | 2206 | Private | Prisoner. Stormberg, 10 December 1899
2nd Battalion.
Source: South African Field Force Casualty Roll | Royal Irish Rifles |
| Armstrong | J | 5029 | Private | Slightly injured. Jammersburg, 19 November 1901
2nd Battalion. By lightning. 16 MI
Source: South African Field Force Casualty Roll | Highland Light Infantry |
| Armstrong | J | | | 3rd Battalion
Source: QSA and KSA medal rolls | Essex Regiment |
| Armstrong | J | 6823 | Private | 4th Battalion, 20th Mounted Infantry
Source: QSA roll | Lancashire Fusiliers |
| Armstrong | J | 15 | Trooper | Slightly wounded. Near Pienaar's River, 2 June 1901
Source: South African Field Force Casualty Roll | Kitchener's Fighting Scouts |
| Armstrong | J | | | 1st Battalion
Source: QSA and KSA medal rolls | Essex Regiment |
| Armstrong | J | 7156 | Private | 5th Battalion
Source: QSA roll | Lancashire Fusiliers |
| Armstrong | J | 3143 | Private | Slightly wounded. Pivaanspoort, 20 July 1901
Source: South African Field Force Casualty Roll | 8th (The King's Royal Irish) Hussars |
| Armstrong | J | 4140 | Private | Wounded. Belmont, 23 November 1900
1st Battalion.
Source: South African Field Force Casualty Roll | Northumberland Fusiliers |
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