| Regimental number | 1494 |
| Place of birth | Cullandulla New South Wales |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | c/o Mrs J Gilligan, Keane Street, Lismore, New South Wales |
| Marital status | Single |
| Age at embarkation | 24 |
| Next of kin | Father, John Gilligan, Bomaderry, New South Wales |
| Enlistment date | 24 December 1914 |
| Rank on enlistment | Private |
| Unit name | 15th Battalion, 3rd Reinforcement |
| AWM Embarkation Roll number | 23/32/2 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A49 Seang Choon on 13 February 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 15th Battalion |
| Fate | Returned to Australia 10 June 1916 |
| Family/military connections | Brother: 1493 Lance Corporal John GILLIGAN, 15th Bn, killed in action, 1 February 1917. |