| Regimental number | 1889 |
| Religion | Methodist |
| Occupation | Farmer |
| Address | Mystic Park, Victoria |
| Marital status | Single |
| Age at embarkation | 29 |
| Next of kin | Father, James Castles, Mystic Park, Victoria |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 46th Battalion, 3rd Reinforcement |
| AWM Embarkation Roll number | 23/63/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A7 Medic on |
| Regimental number from Nominal Roll | 2046 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 46th Battalion |
| Fate | Returned to Australia |
| Miscellaneous details (Nominal Roll) | *Noted CASTLES Hill Knox NR |
| Miscellaneous information from cemetery records | Photo: Kent Fedorowich |
| Family/military connections | Brothers: 151 Gunner Roden Howard CASTLES, 4th Field Artillery Brigade, returned to Australia, 21 December 1917; 1890 Pte Uriah Melanchthon CASTLES, 46th Bn, returned to Australia, 5 April 1917; 1891 Pte Watt Booth CASTLES, 46th Bn, killed in action, 14 February 1917. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
| Date of death | |
| Age at death | 58 |
| Place of burial | Lake Boga Cemetery, Victoria |
