| Firth | A | 51 | Private | Severely wounded. Lindley, 28 June 1900
Source: South African Field Force Casualty Roll | SAMIF |
| Firth | A | 4325 | Corporal | Demise: Killed in action 24 Feb 1902
Place: Vrede Near Langverwacht
Source: In Memoriam by S Watt | New Zealand, 7th Contingent |
| Firth | A D | | | Source: QSA Medal Rolls | Army Chaplain's Department |
| Firth | A H | | | Source: Medal rolls | Lumsden's Horse |
| Firth | A H | 37 | Lance Corporal | Wounded and prisoner. Houtnek, 30 April 1900
Released
Source: South African Field Force Casualty Roll | Lumsden's Horse |
| Firth | A J | | | Source: WO100/231 | City Imperial Volunteers |
| Firth | Albert | | | Source: QSA and KSA medal rolls | 86th Battery, RFA |
| Firth | Albert Alex. Crossley | 51 | Trooper | Source: OZ-Boer database | Tasmania, 3rd Imperial Contingent |
| Firth | B | 5094 | Private | QSA (4). Missing, nr Poortjes, 01 Apr 02. Rejoined. Medal Forfeit, Deserted. Initial 'W' on Casualty Roll.
Source: QSA medal rolls | 17th (The Duke of Cambridge's Own) Lancers |
| Firth | C | | | 2nd Battalion
Source: QSA and KSA medal rolls | Northamptonshire Regiment |
| Firth | C | | | 1st Battalion
Source: QSA and KSA medal rolls | Royal Scots (Lothian Regiment) |
| Firth | Donald | 223 | | Source: Medal rolls | Canada, 2nd Canadian Mounted Rifles |
| Firth | E | 5064 | Private | QSA (3). Invalided.
Source: QSA medal rolls | 7th (The Queen's Own) Hussars |
| Firth | Ernest Hartley | | Lieutenant | QSA (4) CC Wep Tr Witt. QSA (4); KSA (2); BWM and VM (Capt). DNW December 1991 £250. Dixon's Medals July 1993 £300
Source: Wepener Siege Account and Medal Roll | Kaffrarian Rifles |
| Firth | F | | Trooper | Demise: Died 10 Jul 1900
Place: Lindley
Source: In Memoriam by S Watt | 58th Company, 15th Btn, IY |
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