| Regimental number | 1808 |
| Place of birth | Buttevant, Cork, Ireland |
| Occupation | Labourer |
| Address | c/o John O'Hare, Paddington, Sydney, New South Wales |
| Marital status | Widower |
| Age at embarkation | 39 |
| Height | 5' 10" |
| Weight | 168 lbs |
| Next of kin | Son, William Brennan, c/o John O'Hare, Paddington, Sydney, New South Wales |
| Previous military service | Served for 1 year in the Royal Irish Constabulary, 10 months in the Sydney Police. |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Place of enlistment | Keswick, South Australia |
| Rank on enlistment | Private |
| Unit name | 27th Battalion, 2nd Reinforcement |
| AWM Embarkation Roll number | 23/44/2 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A61 Kanowna on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 27th Battalion |
| Fate | Returned to Australia |
| Discharge date | |
| Other details |
War service: Egypt, Gallipoli Enlisted as Patrick Brennan, 28 August 1914; failed to embark; re-enlisted as McEvoy Brennan, 16 March 1915; embarked Alexandria, Egypt, to join the Mediterranean Expeditionary Force, Gallipoli Peninsula, 4 September 1915. Admitted to 1st Australian Stationary Hospital (dysentery), Lemnos, 10 September 1915; transferred to Base, 16 September 1915; embarked, Mudros for England, 18 September 1915; disembarked, England, 26 September 1915; admitted to Bethnal Green War Hospital, 26 September 1915; reported to Australian Intelligence Depot, Abbeywood, 24 November 1915; Commenced return to Australia from Portland, 17 March 1916; discharged, Sydney, 30 August 1916. Medals: 1914-15 Star, British War Medal, Victory Medal |
| Sources | NAA: B2455, BRENNAN McEvor |