| McGowan | J | 2050 | Lance Corporal | 2nd Life Guards. QSA (6). .
Source: QSA medal rolls | Life Guards |
| McGowan | J | | | 2nd Battalion
Source: QSA and KSA medal rolls | Scots Guards |
| McGowan | J | 402 | Private | Frontier Wars. SAGS (1) 1877-8-9. Medal returned. Deserted | (Cameronians) Scottish Rifles |
| McGowan | J | 184 | Private | Frontier Wars. SAGS (1) 1879 | Connaught Rangers |
| McGowan | J | 1485 | Private | Frontier Wars. SAGS (1) 1879 | (Cameronians) Scottish Rifles |
| McGowan | J | 988 | Private | Frontier Wars. SAGS (1) 1879 | (Cameronians) Scottish Rifles |
| McGowan | J | | | 1st Battalion
Source: QSA and KSA medal rolls | Durham Light Infantry |
| McGowan | J | 364 | Lance Sergeant | Demise: Died of disease - enteric fever 01 Dec 1900
Place: Rustenburg
Source: In Memoriam by S Watt | Victoria, 2nd Mounted Rifles Contingent |
| McGowan | J | | | 2nd Battalion
Source: Medal rolls | Cheshire Regiment |
| McGowan | J | | | 4th Battalion
Source: Medal rolls | Cheshire Regiment |
| McGowan | J | | | 2nd Battalion
Source: QSA and KSA medal rolls | Manchester Regiment |
| McGowan | J | 4788 | Private | QSA (4). Invalided.
Source: QSA medal rolls | 8th (The King's Royal Irish) Hussars |
| McGowan | J | | | 1st Battalion
Source: QSA and KSA medal rolls | Loyal North Lancashire Regiment |
| McGowan | J | | | 4th Battalion
Source: QSA and KSA medal rolls | Cheshire Regiment |
| McGowan | J | | | 2nd Battalion
Source: QSA and KSA medal rolls | Cheshire Regiment |
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