| Regimental number | 73 |
| Place of birth | Tamworth New South Wales |
| Religion | Church of England |
| Occupation | Motor mechanic and driver |
| Address | Tingha, New South Wales |
| Marital status | Single |
| Age at embarkation | 19 |
| Next of kin | Father, F Gaukroger, Tingha, New South Wales |
| Enlistment date | 24 November 1915 |
| Rank on enlistment | Armourer Sergeant |
| Unit name | 33rd Battalion, Headquarters |
| AWM Embarkation Roll number | 23/50/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A74 Marathon on 4 May 1916 |
| Rank from Nominal Roll | Staff Sergeant |
| Unit from Nominal Roll | Australian Army Ordnance Corps |
| Fate | Returned to Australia 23 September 1919 |
| Miscellaneous details (Nominal Roll) | *Spelt John Gaukroger on NR |
