| Regimental number | 1161 |
| Place of birth | Emmaville New South Wales |
| Religion | Roman Catholic |
| Occupation | Engine driver |
| Address | 'Rockley', Emmaville, New South Wales |
| Marital status | Single |
| Age at embarkation | 26 |
| Next of kin | Father, F Brennan, 'Rockley', Emmaville, New South Wales |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 30th Battalion, Headquarters |
| AWM Embarkation Roll number | 23/47/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A72 Beltana on |
| Rank from Nominal Roll | Corporal |
| Unit from Nominal Roll | 30th Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brother: 388 Lance Corporal William Patrick BRENNAN, 36th Bn, returned to Austrralia, 30 June 1918. |
| Other details |
War service: Egypt, Western Front Medals: 1914-15 Star, British War Medal, Victory Medal |
| Date of death | |
| Place of burial | Coolgardie Cemetery |