| Regimental number | 1904 |
| Place of birth | Wellington New South Wales |
| Religion | Roman Catholic |
| Occupation | Telegraphist |
| Address | Ultimo, New South Wales |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, Maurice Hennessy, 179 Jones Street, Ultimo, New South Wales |
| Previous military service | 26th Infantry |
| Enlistment date | 12 October 1916 |
| Rank on enlistment | 2nd Air Mechanic |
| Unit name | May 1917 Reinforcements |
| AWM Embarkation Roll number | 8/15/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A32 Themistocles on 4 August 1917 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | Australian Flying Corps |
| Fate | Effective abroad (still overseas) |