| Regimental number | 6557 |
| Place of birth | Toowoomba Queensland |
| Religion | Church of England |
| Occupation | Painter |
| Address | 134 Simmons Street, Newtown, New South Wales |
| Marital status | Married |
| Age at embarkation | 34 |
| Next of kin | Wife, Mrs. A.M. Thistlethwaite, 134 Simmons Street, Newtown, New South Wales |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 4th Battalion, 21st Reinforcement |
| AWM Embarkation Roll number | 23/21/4 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A60 Aeneas on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 4th Battalion |
| Fate | Returned to Australia |
| Miscellaneous details (Nominal Roll) | *Noted THISTLETHWAITE William John NR |
| Age at death from cemetery records | 38 |
| Place of burial | Rookwood Necropolis (Section B, Grave No. 73), New South Wales |
| Panel number, Roll of Honour, Australian War Memorial | 42 |
| Miscellaneous information from cemetery records | Parents: Wesley and Mary THISTLETHWAITE. Native of Toowoomba, Queensland |