| Regimental number | 6998 |
| Place of birth | Mandoorana New South Wales |
| Religion | Presbyterian |
| Occupation | Labourer |
| Address | Neville, via Blayney, New South Wales |
| Marital status | Single |
| Age at embarkation | 24 |
| Next of kin | Father, 0 Lassey, Neville, via Blayney, New South Wales |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 2nd Battalion, 23rd Reinforcement |
| AWM Embarkation Roll number | 23/19/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A24 Benalla on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 1st Machine Gun Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brother: 2194 Pte Raymond Llewellyn LASSEY, 19th Bn, killed in action, 7 April 1918. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |