| Colquhoun | A N | | Private | CGHGSM (1) Bechuanaland
Source: Roll of the CGHGSM | Diamond Fields Horse |
| Colquhoun | A S | | | 1st Battalion
Source: QSA and KSA medal rolls | (King's Own) Yorkshire Light Infantry |
| Colquhoun | A S | | | 1st Battalion, MI
Source: QSA and KSA medal rolls | (King's Own) Yorkshire Light Infantry |
| Colquhoun | A S | | | 2nd Battalion
Source: QSA and KSA medal rolls | (King's Own) Yorkshire Light Infantry |
| Colquhoun | C F | | | 2nd Battalion
Source: QSA and KSA medal rolls | East Surrey Regiment |
| Colquhoun | C F | | Lieutenant | 2nd Battalion
Source: QSA medal roll in WO100/185 | East Surrey Regiment |
| Colquhoun | D | 2556 | Lance Sergeant | QSA (3). Discharged, Time expired.
Source: QSA medal rolls | 16th (The Queen's) Lancers |
| Colquhoun | Daniel | | Trooper | Source: Nominal roll in WO127 | Rimington's Guides |
| Colquhoun | F | | | 1st Battalion, Volunteer Service Company
Source: QSA and KSA medal rolls | Leicestershire Regiment |
| Colquhoun | F | 5573 | Sergeant | Wounded. Paardeberg, 18 February 1900
1st Battalion.
Source: South African Field Force Casualty Roll | Oxfordshire Light Infantry |
| Colquhoun | F W | | | 2nd Battalion
Source: QSA and KSA rolls | Imperial Light Horse |
| Colquhoun | F W | | | Source: QSA and KSA medal rolls | Prince Alfred's Volunteer Guard |
| Colquhoun | F W | | Trooper | Natal 1906 (1)
Source: Recipients of the Natal 1906 Medal | Natal Carbineers |
| Colquhoun | Frank William | 328 | Trooper | 2nd Battalion
Source: Nominal roll in WO127 | Imperial Light Horse |
| Colquhoun | Frederick Crossey | | | BSACM Mashonaland 1890 (1) Matabeleland 1893. 1893: Cpl. Victoria Col.
Source: BSACM rolls | Pioneer Corps |
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