| Regimental number | 6847 |
| Place of birth | Gympie Queensland |
| Religion | Presbyterian |
| Occupation | Engine driver |
| Address | Proserpine, Queensland |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Mother, Mrs A E Scott, Proserpine, Queensland |
| Enlistment date | 3 October 1916 |
| Date of enlistment from Nominal Roll | 14 October 1916 |
| Rank on enlistment | Private |
| Unit name | 9th Battalion, 22nd Reinforcement |
| AWM Embarkation Roll number | 23/26/4 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A74 Marathon on 27 October 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 9th Battalion |
| Fate | Returned to Australia 4 July 1919 |
| Miscellaneous details (Nominal Roll) | *Given name spelt Collin Jefferies |
