| Regimental number | 858 |
| Place of birth | Yinnar, Victoria |
| School | Yinnar State School, North Gippsland, Victoria |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | c/o E R Smith, carrier, Burrowa, New South Wales |
| Marital status | Single |
| Age at embarkation | 31 |
| Height | 5' 8" |
| Weight | 160 lbs |
| Next of kin | Patrick Cahill, Donnybrook, Western Australia |
| Previous military service | Nil |
| Enlistment date | |
| Place of enlistment | Liverpool, New South Wales |
| Rank on enlistment | Private |
| Unit name | 1st Light Horse Regiment, 4th Reinforcement |
| AWM Embarkation Roll number | 10/6/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A9 Shropshire on |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | 4th Field Artillery Brigade |
| Fate | Killed in Action |
| Place of death or wounding | France |
| Age at death | 38 |
| Age at death from cemetery records | 38 |
| Place of burial | Voormezeele Enclosures No. 1 and No. 2 (Plot I, Row H, Grave No. 47), Belgium |
| Panel number, Roll of Honour, Australian War Memorial | 13 |
| Miscellaneous information from cemetery records | Parents: John and Mary CAHILL. Native of Yinnar, Victoria |
| Other details |
War service: Egypt, Gallipoli, Western Front Medals: 1914-15 Star, British War Medal, Victory Medal |
| Sources | NAA: B2455, CAHILL Joseph |