| Iliffs | C | | | 1st Battalion
Source: QSA and KSA medal rolls | Royal Dublin Fusiliers |
| Illfey | George Charles | 151 | Saddler Sergeant | 2nd Battalion
Source: Nominal roll in WO127 | Imperial Light Horse |
| Illgner | Theodore | 462 | | Attested: Jan 1912. Source: CMP 24 | Cape Police |
| Illife | F | | | 2nd Battalion, Volunteer Service Battalion
Source: QSA and KSA medal rolls | Northamptonshire Regiment |
| Illife | T | | | 1st Battalion, Volunteer Service Battalion
Source: QSA and KSA medal rolls | Northamptonshire Regiment |
| Illife | Tom | 10 | Trooper | Source: OZ-Boer database | New South Wales, NSW Citizen's Bushmen |
| Illiffe | W | | | 1st Battalion
Source: QSA and KSA medal rolls | South Staffordshire Regiment |
| Illigool | J | | | 3rd Battalion
Source: QSA and KSA medal rolls | Durham Light Infantry |
| Illing | G | | | 4th Battalion
Source: QSA and KSA medal rolls | East Surrey Regiment |
| Illing | L | | | 2nd Battalion
Source: QSA and KSA medal rolls | Bedfordshire Regiment |
| Illing | W | | | 2nd Battalion
Source: QSA and KSA medal rolls | East Yorkshire Regiment |
| Illingsworth | Frederick George | | | Source: QSA and KSA medal rolls | South African Constabulary |
| Illingsworth | G A | | | 3rd Battalion
Source: QSA and KSA medal rolls | East Surrey Regiment |
| Illingsworth | J | | | 1st Battalion
Source: QSA and KSA medal rolls | (Princess of Wales's Own) Yorkshire Regiment |
| Illingsworth | J A | | | 3rd Battalion
Source: QSA and KSA medal rolls | East Surrey Regiment |
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