| Regimental number | 1714 |
| Place of birth | Hawthorn, Victoria |
| Religion | Roman Catholic |
| Occupation | Butcher |
| Address | 18 Falmouth Street, Glenferrie, Victoria |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, Joseph James Castles, 18 Falmouth Street, Glenferrie, Victoria |
| Enlistment date | 13 March 1916 |
| Date of enlistment from Nominal Roll | 9 March 1916 |
| Rank on enlistment | Private |
| Unit name | 37th Battalion, 1st Reinforcement |
| AWM Embarkation Roll number | 23/54/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A11 Ascanius on 27 May 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 1st Machine Gun Battalion |
| Fate | Effective abroad (still overseas) |