| Regimental number | 585 |
| Place of birth | Warialda New South Wales |
| Religion | Church of England |
| Occupation | Labourer |
| Address | Fitzroy Street, Tamworth, New South Wales |
| Marital status | Single |
| Age at embarkation | 30 |
| Next of kin | Brother, Douglas Irwin, Fitzroy Street, Tamworth, New South Wales |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 20th Battalion, B Company |
| AWM Embarkation Roll number | 23/37/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A35 Berrima on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 20th Battalion |
| Fate | Killed in Action |
| Place of death or wounding | Flers, France |
| Age at death | 34 |
| Age at death from cemetery records | 32 |
| Place of burial | Guards' Cemetery (Plot IX, Row J, Grave No. 3), Lesboeufs, France |
| Panel number, Roll of Honour, Australian War Memorial | 91 |
| Miscellaneous information from cemetery records | Parents: John and Mary IRWIN. Native of Warialda, New South Wales |