
| Regimental number | 1384 |
| Place of birth | Dungog, New South Wales |
| School | Taylor's Arm, via Macksville, Nambucca River, New South Wales |
| Religion | Presbyterian |
| Occupation | School teacher |
| Address | c/o Mrs S Forster, Bandon Grove via Dungog, New South Wales |
| Marital status | Single |
| Age at embarkation | 23.3 |
| Height | 5' 7.5" |
| Weight | 121 lbs |
| Next of kin | Mother, Mrs S Forster, Bandon Grove via Dungog, New South Wales |
| Previous military service | Nil |
| Enlistment date | |
| Place of enlistment | Broadmeadow, New South wales |
| Rank on enlistment | Private |
| Unit name | Light Trench Mortar Battery, Reinforcement 3 |
| AWM Embarkation Roll number | 13/130/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A11 Ascanius on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 35th Battalion |
| Fate | Killed in Action |
| Place of death or wounding | Polygon Wood, Belgium |
| Age at death | 24 |
| Age at death from cemetery records | 24 |
| Place of burial | Strand Military Cemetery (Plot III, Row A, Grave No. 1), Ploegsteert, Belgium |
| Panel number, Roll of Honour, Australian War Memorial | 125 |
| Miscellaneous information from cemetery records | Parents: Samuel Irwin and Jessie FORSTER, 81 St. Davids Road, Haberfield, New South Wales. Native of Bandon Grove, New South Wales |
| Family/military connections | Brother: 1238 Pte Arthur William FORSTER, 14th Light Horse Regiment, returned to Australia, 24 July 1919. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
| Miscellaneous details | Second given name incorrectly entered on Embarkation Roll as Erwin. |
| Sources | NAA: B2455, FORSTER Samuel Irwin |