| Regimental number | 2704 |
| Place of birth | Fulham, South Australia |
| School | Fulham Public School, South Australia |
| Religion | Church of England |
| Occupation | Dairyman |
| Address | Fulham, South Australia |
| Marital status | Single |
| Age at embarkation | 19 |
| Next of kin | Mother, Mrs Alma Ann Louise Mahoney, Fulham, South Australia |
| Previous military service | Served as Private in 78th Senior Cadets, Southj Australia |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 10th Battalion, 8th Reinforcement |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A68 Anchises on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 10th Battalion |
| Fate | Died of wounds |
| Place of death or wounding | France |
| Age at death | 18.11 |
| Age at death from cemetery records | 18 |
| Place of burial | Daours Communal Cemetery Extension (Plot I, Row C, Grave No. 30), France |
| Panel number, Roll of Honour, Australian War Memorial | 59 |
| Miscellaneous information from cemetery records | Parents: Michael and Alma MAHONEY, Henley Beach, South Australia. Native of Fulham, South Australia |
| Family/military connections | Brother to late Sergeant J D MAHONEY 10th Battalion |