
| Regimental number | 2087 |
| Place of birth | Barossa, South Australia |
| School | Rhynie Public School, South Australia |
| Other training | Farming |
| Religion | Roman Catholic |
| Occupation | Engine cleaner |
| Address | Richmond, South Australia |
| Marital status | Single |
| Age at embarkation | 23 |
| Height | 5' 10" |
| Weight | 164 lbs |
| Next of kin | Mother, Mrs Susanah O'Leary, Richmond, South Australia |
| Previous military service | Served for 8 months in the 10th Infantry, Citizen Military Forces; discharged as unable to attend drills. |
| Enlistment date | |
| Place of enlistment | Adelaide, South Australia |
| Rank on enlistment | Private |
| Unit name | 32nd Battalion, 3rd Reinforcement |
| AWM Embarkation Roll number | 23/49/2 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A28 Miltiades on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 32nd Battalion |
| Fate | Killed in Action |
| Age at death from cemetery records | 24 |
| Place of burial | No known grave |
| Commemoration details | V.C. Corner (Panel No 6), Australian Cemetery Memorial, Fromelles, France |
| Panel number, Roll of Honour, Australian War Memorial | 121 |
| Miscellaneous information from cemetery records | Parents: Humphrey James and Susanna Catherine O'LEARY, Taranna Street, Richmond, South Australia |
| Family/military connections | Cousins (1st): 2089 Pte John Justin O'LEARY, 32nd Bn, killed in action, 13 February 1918; 1941 Pte Emmet O'LEARY, 22nd Bn, killed in action, 9 March 1918. |
| Other details |
War service: Egypt, Western Front Embarked Adelaide, 7 February 1916; disembarked Suez, 11 March 1916. Proceeded to 32nd Bn from 8th Training Bn, Zeitoun, 1 April 1916; taken on strength 32nd Bn, Duntroon Plateau, 1 April 1916. Embarked Alexandria to join the British Expeditionary Force, 17 June 1916; disembarked Marseilles, France, 23 June 1916. Killed in action, 20 July 1916. Medals: British War Medal, Victory Medal |
| Sources | NAA: B2455, O'LEARY Humphrey |