| Regimental number | 893 |
| Place of birth | Neutral Bay New South Wales |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | 8 Undercliffe Street, Neutral Bay, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, T John Gavin, 8 Undercliffe Street, Neutral Bay, Sydney, New South Wales |
| Previous military service | 17th Aust Infantry |
| Enlistment date | 14 July 1915 |
| Rank on enlistment | Private |
| Unit name | 30th Battalion, D Company |
| AWM Embarkation Roll number | 23/47/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A72 Beltana on 9 November 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 30th Battalion |
| Fate | Returned to Australia 8 April 1919 |
| Miscellaneous details (Nominal Roll) | *Spelt Augustine James Gavin on NR |
