| Regimental number | 5206 |
| Place of birth | St Genge, Queensland |
| School | Mungindi Public School, New South Wales |
| Religion | Roman Catholic |
| Occupation | Postal assistant |
| Address | Mungindi, New South Wales |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, John Cahill, Mungindi, New South Wales |
| Previous military service | Nil |
| Enlistment date | |
| Rank on enlistment | Sapper |
| Unit name | Divisional Signal Company 1, Section 2 |
| AWM Embarkation Roll number | 22/11/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A19 Afric on |
| Rank from Nominal Roll | Sapper |
| Unit from Nominal Roll | 1st Divisional Signal Company |
| Other details from Roll of Honour Circular | Died of illness, Joinville-le-Pont, Paris. |
| Fate | Died of disease |
| Age at death | 21.8 |
| Age at death from cemetery records | 24 |
| Place of burial | Joinville-Le-Pont Communal Cemetery (Division 13, Grave 9), France |
| Panel number, Roll of Honour, Australian War Memorial | 25 |
| Miscellaneous information from cemetery records | Parents: John and the late Esther CAHILL |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |