| Regimental number | 5649 |
| Place of birth | Cape Town South Africa |
| Religion | Roman Catholic |
| Occupation | Chemist's assistant |
| Address | Rayleigh, Oswalt Street, Mosman, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, H.T.C. Brennan, Rayleigh, Oswald Street, Mosman, Sydney, |
| Enlistment date | 21 January 1916 |
| Rank on enlistment | Private |
| Unit name | 2nd Battalion, 18th Reinforcement |
| AWM Embarkation Roll number | 23/19/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A55 Kyarra on 3 June 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 2nd Battalion |
| Fate | Returned to Australia 6 May 1919 |
| Miscellaneous details (Nominal Roll) | *Given name James George |
