| Regimental number | 730 |
| Religion | Presbyterian |
| Occupation | Journalist |
| Address | 45 Alustin Street, Subiaco, Western Australia |
| Marital status | Single |
| Age at embarkation | 23 |
| Next of kin | Father, James Birtwistle, 45 Austin Street, Subiaco, Western Australia |
| Enlistment date | 13 February 1915 |
| Rank on enlistment | Private |
| Unit name | 22nd Battalion, C Company |
| AWM Embarkation Roll number | 23/39/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A38 Ulysses on 10 May 1915 |
| Rank from Nominal Roll | Lance Corporal |
| Unit from Nominal Roll | 22nd Battalion |
| Fate | Returned to Australia 22 February 1917 |
| Miscellaneous details (Nominal Roll) | *Given name Ivor Trehane |