| Regimental number | 219 |
| Place of birth | Tenterfield New South Wales |
| Religion | Roman Catholic |
| Occupation | Horse breaker |
| Address | Silverspur via Inglewood, Queensland |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Mother, Mrs N J Gannon, Tingha PO, Tingha, New South Wales |
| Enlistment date | 17 October 1914 |
| Rank on enlistment | Acting Lance Corporal |
| Unit name | 5th Light Horse Regiment, B Squadron |
| AWM Embarkation Roll number | 10/10/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A34 Persic on 21 December 1914 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | Anzac Provost Corps |
| Fate | Returned to Australia 1 November 1917 |
| Family/military connections | Brother: 220 Pte Victor GANNON, 5th Light Horse Regiment, returned to Australia, 18 October 1918. |
