| Regimental number | 5626 |
| Place of birth | Lancaster England |
| Age on arrival in Australia | 21 |
| Religion | Presbyterian |
| Occupation | Clerk |
| Address | 103 Ackland Street, St Kilda, Victoria |
| Marital status | Married |
| Age at embarkation | 23 |
| Next of kin | Wife, Mrs Janet Helliwell, Walbundree via Albury, New South Wales |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 21st Battalion, 15th Reinforcement |
| AWM Embarkation Roll number | 23/38/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A9 Shropshire on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 21st Battalion |
| Fate | Died of wounds |
| Miscellaneous details (Nominal Roll) | *Given name John William |
| Place of death or wounding | Bapaume, at the 45th C.C.S., France |
| Age at death | 25 |
| Age at death from cemetery records | 25 |
| Place of burial | Dernancourt Communal Cemetery Extension (Plot VI, Rwo A, Grave No. 42), France |
| Panel number, Roll of Honour, Australian War Memorial | 94 |
| Miscellaneous information from cemetery records | Parents: John and Edith HELLIWELL; husband of Janet Helliwell, Dillon Grove, South Camberwell, Victoria. Native of Wood Green, London, England |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |