| Place of birth | Sydney New South Wales |
| Religion | Church of England |
| Occupation | Flour miller |
| Address | Brother in law, George B Harris, 38 Steel Street, Moonee Ponds, Melbourne, Victoria |
| Marital status | Single |
| Age at embarkation | 23 |
| Next of kin | Father, W N J Wolff, 1 St Elmo Street, Mosman, Sydney, New South Wales |
| Enlistment date | 7 June 1915 |
| Rank on enlistment | Lieutenant |
| Unit name | 22nd Battalion, 10th Reinforcement |
| AWM Embarkation Roll number | 23/39/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A18 Wiltshire on 7 March 1916 |
| Rank from Nominal Roll | Captain |
| Unit from Nominal Roll | 22nd Battalion |
| Fate | Returned to Australia 16 March 1918 |
| Miscellaneous details (Nominal Roll) | *Given name William Sydney |
