| Regimental number | 645 |
| Other Names | Ronald Lavington |
| Marital status | Married |
| Next of kin | Wife, Mrs Ada Pearl Victoria Cato, Highgate, Eastern Avenue, Kesnington, Sydney, New South Wales |
| Date of enlistment from Nominal Roll | 20 July 1916 |
| Rank on enlistment | Private |
| Unit name | Machine Gun Company 9, Reinforcement 10 |
| AWM Embarkation Roll number | 24/14/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A29 Suevic on 21 June 1917 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 33rd Battalion |
| Fate | Effective abroad (still overseas) |
