| Regimental number | 5697 |
| Place of birth | Rockhampton, Queensland |
| School | Rockhampton Grammar School, Queensland |
| Religion | Methodist |
| Occupation | Assayer |
| Address | Beaconsfield, Ilfracombe, Queensland |
| Marital status | Single |
| Age at embarkation | 28 |
| Next of kin | Mother, Mrs S A Hartley, Hall Estate, Rockhampton, Queensland |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 15th Battalion, 18th Reinforcement |
| AWM Embarkation Roll number | 23/32/2 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A49 Seang Choon on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 15th Battalion |
| Fate | Died of wounds |
| Miscellaneous details (Nominal Roll) | *William spelt Williamson |
| Place of death or wounding | Messines, Belgium |
| Age at death | 29 |
| Age at death from cemetery records | 29 |
| Place of burial | Trois-Arbres Cemetery (Plot I, Row U, Grave No. 2), Steenwerck, France |
| Panel number, Roll of Honour, Australian War Memorial | 76 |
| Miscellaneous information from cemetery records | Parents: Stewart and Sarah HARTLEY, "Trawden", Rundle Street, rockhampton, Queensland |
| Family/military connections | Brother: 2nd Lieut J.N.M. Hartley, died of wounds on 9th January, 1917 at Guadecmil. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |