| Regimental number | 1320 |
| Place of birth | Cowes England |
| Religion | Methodist |
| Occupation | Soldier |
| Address | South Head, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, Alfred Charles Jonkers, Duff Street, Turramurra, New South Wales |
| Previous military service | Royal Australian Garrison Artillery |
| Enlistment date | 28 December 1917 |
| Rank on enlistment | Gunner |
| Unit name | Heavy Artillery Group 36, Reinforcement 17 |
| AWM Embarkation Roll number | 13/49/5 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A71 Nestor on 28 February 1918 |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | 36th Heavy Artillery Brigade |
| Fate | Returned to Australia 28 December 1917 |
| Miscellaneous details (Nominal Roll) | *Stated to be Charles Alfred Jonkers on NR |
