| Regimental number | 6526 |
| Place of birth | Prospect, New South Wales |
| Religion | Roman Catholic |
| Occupation | Slaughterman |
| Address | 3 College Street, Croydon, Sydney, New South Wales |
| Marital status | Married |
| Age at embarkation | 27 |
| Next of kin | Wife, Mrs E Johnson, c/o Mrs Bald, Liverpool Road, Ashfield, New South Wales |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 2nd Battalion, 21st Reinforcement |
| AWM Embarkation Roll number | 23/19/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A40 Ceramic on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 2nd Battalion |
| Fate | Killed in Action |
| Miscellaneous details (Nominal Roll) | Spelt John Allan Johnson on Nominal Roll. |
| Place of death or wounding | Hermies, France |
| Age at death | 30 |
| Age at death from cemetery records | 30 |
| Place of burial | Hermies British Cemetery (Row B, Grave 6), France |
| Panel number, Roll of Honour, Australian War Memorial | 33 |
| Miscellaneous information from cemetery records | Parents: Harry and Pauline JOHNSON |
| Family/military connections | Brother-in-law: Pte A. Sutton, killed in action |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |