| Regimental number | 841 |
| Place of birth | Hobart, Tasmania |
| Religion | Roman Catholic |
| Occupation | Carter |
| Address | 58 Federal Street, North Hobart, Tasmania |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, Michael J Cahill, 58 Federal Street, North Hobart, Tasmania |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 26th Battalion, C Company |
| AWM Embarkation Roll number | 23/43/1 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A60 Aeneas on |
| Regimental number from Nominal Roll | 56520 |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | Artillery Details |
| Fate | Returned to Australia |
| Other details |
Returned to Australia; re-enlisted as 56520, Private, 1st-3rd (WA) and (Tasmanian) Reinforcements (May-October 1918); embarked from Sydney on board HMAT A 14 'Borda', 17 June 1918. Medals: 1914-15 Star, British War Medal, Victory Medal |