| Regimental number | 1784 |
| Place of birth | Camberwell, Victoria |
| School | Dorcas St State School, South Melbourne, Victoria |
| Religion | Church of England |
| Occupation | Painter |
| Address | 30 Faussett Street, Albert Park, Victoria |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Sister, Miss A Maddock, 3O Faussett Street, Albert Park, Victoria |
| Previous military service | Served in the 5th Volunteer Rifles. |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 8th Battalion, 4th Reinforcement |
| AWM Embarkation Roll number | 23/25/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A18 Wiltshire on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 8th Battalion |
| Fate | Killed in Action |
| Place of death or wounding | Gallipoli, Turkey |
| Age at death | 22 |
| Place of burial | Shrapnel Valley Cemetery (Plot II, Row A, Grave No. 48), Gallipoli, Turkey |
| Panel number, Roll of Honour, Australian War Memorial | 53 |
| Miscellaneous information from cemetery records | Parents: John Samuel and Emma Louisa MADDOCK. Native of Camberwell, Victoria |
| Family/military connections | Brother of Arthur Maddock, returned wounded, no distinctions. |
| Other details |
War service: Egypt, Gallipoli Medals: 1914-15 Star, British War Medal, Victory Medal |