| Regimental number | 1294 |
| Place of birth | Nathalia Victoria |
| Religion | Church of England |
| Occupation | Farmer |
| Address | Oaklands, New South Wales |
| Marital status | Single |
| Age at embarkation | 26 |
| Next of kin | Father, Arthur King Trethowan, Clear Hills, Oaklands, New South Wales |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 37th Battalion, D Company |
| AWM Embarkation Roll number | 23/54/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A34 Persic on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 5th Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brother: 1293 Pte Harold TRETHOWAN, 37th Bn, returned to Australia, 18 October 1917. |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
