| Regimental number | 465 |
| Place of birth | Colac, Victoria |
| Religion | Roman Catholic |
| Occupation | Tailor |
| Address | Colac West, Victoria |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Mrs Johanna O'Brien, Colac West, Victoria |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 21st Battalion, B Company |
| AWM Embarkation Roll number | 23/38/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A38 Ulysses on |
| Rank from Nominal Roll | 2nd Lieutenant |
| Unit from Nominal Roll | 21st Battalion |
| Fate | Killed in Action |
| Place of burial | Berks Cemetery Extension (Rosenberg Plateau Plots), (Plot II, Row A, Grave No. 39), Ploegsteert, Belgium |
| Panel number, Roll of Honour, Australian War Memorial | 94 |
| Family/military connections | Brothers: 344 Pte William Patrick O'BRIEN, 24th Bn, killed in action, 16 September 1915; 1672 Pte John Cornelius O'BRIEN, 4th Field Ambulance, killed in action, 20 August 1917. |
| Other details |
War service: Egypt, Gallipoli, Western Front Taken on strength at Gallipoli, 29 August 1915. Evacuated from Gallipoli with acute appendicitis, 30 November 1915, and admitted to hospital, Egypt. Proceeded from Alexandria to join the British Expeditionary Force, 19 March 1916; disembarked Marseilles, 26 March 1916. Wounded in action, 26 August 1916; evacuated to Belfast, Ireland, 3 September 1916; transferred to England, and discharged from Harefield Hospital, 1 December 1916. Proceeded overseas to France, 28 March 1917; rejoined unit, 1 April 1917. Promoted Sergeant, 20 July 1917; 2nd Lieutenant, 3 November 1917. Medals: 1914-15 Star, British War Medal, Victory Medal |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
