| Regimental number | 277 |
| Place of birth | Cothville, Mitcham, South Australia |
| School | Christian Brothers College School, Adelaide, South Australia |
| Religion | Roman Catholic |
| Occupation | Contractor's overseer |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Father, John Hennessy, Arthur Street, Unley, South Australia |
| Previous military service | Trainee A.N.F. Second Lieut and later First Lieut, D.O. 52/14. |
| Enlistment date | 19 October 1914 |
| Rank on enlistment | Sergeant |
| Unit name | 9th Light Horse Regiment, B Squadron |
| AWM Embarkation Roll number | 10/14/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board Transport A10 Karroo on 11 February 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 9th Light Horse Regiment |
| Other details from Roll of Honour Circular | Worked as a building contractor before the start of the War. Died of illness. |
| Fate | Died of disease 23 July 1915 |
| Place of death or wounding | Gallipoli, Turkey |
| Age at death | 19.9 |
