| Irwin | A | 349 | Trooper | Severely wounded. Near Graaff-Reinet, 17 March 1901
Died 5 April
Source: South African Field Force Casualty Roll |
| Irwin | Albert | 349 | Trooper | Served in 1st KFS. Joined Durban 9 Jan 01 died of wounds Graaf Reinet 5 Apr 01
Source: Nominal roll in WO127 |
| Irwin | John Courtney | 1592 | Saddler Corporal | Served in 1st KFS. Joined Durban 26 Aug 01 Discharged Pietermaritzburg 21 Mar 02 completion of service
Source: Nominal roll in WO127 |
| Isaac'S | Henry | 1758 | Trooper | Served in 1st KFS. Joined Durban 5 Dec 01 Discharged 20 Jun 02 completion of service Cape Town
Source: Nominal roll in WO127 |
| Isaacs | H | 1758 | Private | Severely wounded. Driefontein, 30 March 1902
1st Battalion.
Source: South African Field Force Casualty Roll |
| Jack | Harry Spence | 967 | Trooper | Served in 2nd KFS. Joined 04/06/1902 Discharged 7 Jul 02 Johannesburg
Source: Nominal roll in WO127 |
| Jackson | Alfred | 1487 | Trooper | Served in 1st KFS. Joined Pietermaritzburg 7 Aug 01 Discharged 20 Oct 01 Pietermaritzburg medically unfit
Source: Nominal roll in WO127 |
| Jackson | George Smith | 376 | Trooper | Served in 1st KFS. Joined Pietermaritzburg 31 Jan 01 Discharged Pretoria 4 Aug 01 completion of service
Source: Nominal roll in WO127 |
| Jackson | George Smith | 376 | Trooper | Served in 2nd KFS. Joined Pietermaritzburg 31 Jan 01 Discharged 4 Aug 01 time expired
Source: Nominal roll in WO127 |
| Jackson | Gower Alexander | 2221 | Trooper | Served in 1st KFS. Joined 05/04/1902 Discharged 31 Aug 02 London Coronation
Source: Nominal roll in WO127 |
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