| Lockhart | J A | | | Source: WO100/286 | Windsorton and Wedberg TG |
| Lockhart | J W | 39 | Trooper | Original Body Guard
Source: Nominal roll in WO127 | Commander-in-Chief's Bodyguard |
| Lockhart | John | 9507 | Private | Source: QSA Medal Rolls | 54th Company, 13th Btn, IY |
| Lockhart | John Harris | 417 | | Source: Medal rolls | Canada, 1st Canadian Mounted Rifles |
| Lockhart | Kenneth | 8758 | Private | Source: QSA and KSA medal rolls W0100/130 | Lovat's Scouts |
| Lockhart | R | | | 1st Battalion
Source: QSA and KSA medal rolls | Royal Scots (Lothian Regiment) |
| Lockhart | R J | | | Source: QSA and KSA medal rolls | 68th Battery, RFA |
| Lockhart | Sydney Wilson | 13109 | Lance Corporal | Source: QSA Medal Rolls | 52nd Company, 19th Btn, IY |
| Lockhart | T | 27050 | Trooper | Source: QSA Medal Rolls | 41st Company, 4th Btn, IY |
| Lockhart | T | 1176 | Private | Frontier Wars. SAGS (1) 1877-8-9 | Royal Warwickshire Regiment |
| Lockhart | T | 2919 | Private | Died of disease. Pretoria, 24 January 1901
2nd Battalion.
Source: South African Field Force Casualty Roll | (Buffs) East Kent Regiment |
| Lockhart | T | | | 1st Battalion
Source: QSA and KSA medal rolls | King's Own Scottish Borderers |
| Lockhart | Thomas | 271 | Ranger | Served between 3/5/1901 and 20/1/1902. Reason for discharge: Disbanded. Attested: Pretoria.
Source: Nominal roll | Cattle Ranger's Corps |
| Lockhart | Thomas | 570 and 4369 | Trooper | Source: Nominal roll in WO127 | Western Light Horse |
| Lockhart | W | | | 1st Battalion
Source: QSA and KSA medal rolls | Highland Light Infantry |
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