| Regimental number | 3674 |
| Place of birth | Bathurst, New South Wales |
| Other Names | William Ernest |
| Religion | Baptist |
| Occupation | Warehouseman |
| Address | Horton Street, Marrickville, New South Wales |
| Marital status | Single |
| Age at embarkation | 19 |
| Height | 5' 10" |
| Weight | 172 lbs |
| Next of kin | Father, Sydney Frederick Tanner, Horton Street, Marrickville, New South Wales |
| Previous military service | Nil (previously rejected on account of varicocele) |
| Enlistment date | 1 August 1917 |
| Place of enlistment | Sydney, New South Wales |
| Rank on enlistment | Private |
| Unit name | 6th Light Horse Regiment, 33rd Reinforcement |
| AWM Embarkation Roll number | 10/11/4 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board SS Canberra on 16 November 1917 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 33rd Company, Australian Army Service Corps, Anzac Mounted Division Train |
| Fate | Returned to Australia 26 December 1918 |
| Discharge date | 28 March 1919 |
| Other details | Medals: British War Medal, Victory Medal |