| McGuinness | T | 6010 | Private | 1st Battalion
Source: QSA roll | (Princess Victoria's) Royal Irish Fusiliers |
| McGuinness | T | | | 5th Battalion
Source: QSA and KSA medal rolls | Royal Dublin Fusiliers |
| McGuinness | T | | | 2nd Battalion
Source: QSA and KSA medal rolls | Northamptonshire Regiment |
| McGuinness | T J | 6817 | Sapper | Died of disease. Warringham's, 17 May 1901
Source: South African Field Force Casualty Roll | Royal Engineers, Telegraph Battalion |
| McGuinness | T J | 6817 | Sapper | Demise: Died of disease 17 May 1901
Place: Ladybrand Near Warringhams
Source: In Memoriam by S Watt | Royal Engineers, Telegraph Battalion, 1st Division |
| McGuinness | Thomas | | | 5th Battalion
Source: QSA and KSA medal rolls | Royal Irish Regiment |
| McGuinness | Thomas | | | 3rd Battalion
Source: QSA and KSA medal rolls | Royal Irish Regiment |
| McGuinness | W | 5245 | Private | 2nd Btn. Missing - released at Talana. 20 Oct 1899.
Source: Natal Field Force Casualty Roll, page 193 line 14 | Royal Dublin Fusiliers |
| McGuinness | W | 22967 | Trooper | Discharged 11 Aug 01 time expired
Source: Nominal roll in WO127 | South African Light Horse |
| McGuinness | W | | | 2nd Battalion
Source: QSA and KSA medal rolls | Royal Dublin Fusiliers |
| McGuinness | W | | | 4th Battalion
Source: QSA and KSA medal rolls | Royal Dublin Fusiliers |
| McGuinness | W | | | 5th Battalion
Source: QSA and KSA medal rolls | Royal Dublin Fusiliers |
| McGuinness | W | | | 2nd Battalion
Source: QSA and KSA medal rolls | Royal Irish Rifles |
| McGuinness | W | | | 1st Battalion
Source: Medal rolls | (Princess Louise's) Sutherland and Argyll Highland |
| McGuinness | W | | Private | Served 05 Feb 00 to 28 Feb 01.
Source: Nominal roll in WO127 | Cape Medical Staff Corps |
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