| Regimental number | 3782 |
| Place of birth | Sydney New South Wales |
| Religion | Church of England |
| Occupation | Tram conductor |
| Address | c/o Mrs De Mestre Flinders Street, Wollongong, New South Wales |
| Age at embarkation | 27 |
| Next of kin | Father, T Buckingham c/o Mrs De Mestre, Flinders Street, Wollongong, New South Wales |
| Enlistment date | 7 October 1915 |
| Rank on enlistment | Private |
| Unit name | 17th Battalion, 9th Reinforcement |
| AWM Embarkation Roll number | 23/34/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A54 Runic on 20 January 1916 |
| Rank from Nominal Roll | Corporal |
| Unit from Nominal Roll | 17th Battalion |
| Fate | Returned to Australia 10 January 1918 |
| Miscellaneous details (Nominal Roll) | *Mortinsen spelt Mortessen |