| Regimental number | 445 |
| Date of birth | 1870 |
| Place of birth | Inglewood, Victoria |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | Moonee Ponds, Victoria |
| Marital status | Single |
| Age at embarkation | 39 |
| Next of kin | Sister, Mrs Kyne, 35 Wordsworth Street, Moonee Ponds, Melbourne, Victoria |
| Enlistment date | 17 July 1915 |
| Rank on enlistment | Private |
| Unit name | 37th Battalion, A Company |
| AWM Embarkation Roll number | 23/54/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A34 Persic on 3 June 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 37th Battalion |
| Fate | Returned to Australia 8 August 1918 |
| Other details | Son of Patrick and Ellen (nee O'Brien) Gannan |
| Date of death | 11 April 1952 - Heidelberg Repatriation Hospital |