| Johnstone | D | | | 2nd Battalion
Source: QSA and KSA medal rolls | Gordon Highlanders |
| Johnstone | D | | | 1st Battalion
Source: QSA and KSA medal rolls | Highland Light Infantry |
| Johnstone | D | | Corporal | Natal 1906 (1)
Source: Recipients of the Natal 1906 Medal | Royston's Horse |
| Johnstone | D | | | 1st Battalion
Source: QSA and KSA medal rolls | Scots Guards |
| Johnstone | D | 6213 | Private | 2nd Battalion
Demise: Killed in action 21-10-1899
Place: Elandslaagte. Battleridge
Source: In Memoriam by S Watt | Gordon Highlanders |
| Johnstone | D | | | 2nd Battalion
Source: QSA and KSA medal rolls | Royal Scots Fusiliers |
| Johnstone | D | 6213 | Private | QSA (1)
Source: List of QSAs with the clasp Elandslaagte | Gordon Highlanders |
| Johnstone | D D | 80 | Trooper | Joined 01 Feb 00 Drowned Orange River 14/02/00
Source: Nominal roll in WO127 | Orpen's Light Horse |
| Johnstone | D J | | Trooper | Natal 1906 (1)
Source: Recipients of the Natal 1906 Medal | Natal Police |
| Johnstone | D M W | | Surgeon Major | 1st Battalion
Source: QSA Medal Rolls | Scottish Horse |
| Johnstone | D S O Montague | | | 3rd Battalion
Source: QSA and KSA medal rolls | (King's Own) Yorkshire Light Infantry |
| Johnstone | David | | | 1st Battalion
Source: QSA and KSA medal rolls | Scots Guards |
| Johnstone | David Leishman | 14760 | Trooper | Served 05 Mar 1900 to 31 Oct 1900. Discharged completion of service No. 5 Co.
Source: Nominal roll in WO127 | Border Horse |
| Johnstone | Donald | 938 and 3405 | Trooper | 2nd Battalion
Source: Nominal roll in WO127 | Imperial Light Horse |
| Johnstone | E | | | Source: QSA and KSA medal rolls | South African Constabulary |
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