
| Regimental number | 2072 |
| Place of birth | Murrurundi, Robertson, New South Wales |
| School | Public School |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | Gunnedah GPO, Gunnedah, New South Wales |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Brother, William John Heffernan, Albert Street, Murrurundi, New South Wales |
| Previous military service | Served in the Cadets |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 33rd Battalion, 3rd Reinforcement |
| AWM Embarkation Roll number | 23/50/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A68 Anchises on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 33rd Battalion |
| Fate | Killed in Action |
| Place of death or wounding | Messines, Belgium |
| Age at death | 17 |
| Place of burial | Ration Farm Annexe (Plot III Row A, Grave No. 22), Ploegsteert, Belgium |
| Panel number, Roll of Honour, Australian War Memorial | 122 |
| Miscellaneous information from cemetery records | Parents: John and Elizabeth HEFFERNAN, Albert Street, Murrundi, New South Wales |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |