| Regimental number | 3433 |
| Place of birth | Singleton, New South Wales |
| School | Kirkton Public School, New South Wales |
| Religion | Methodist |
| Occupation | Labourer |
| Address | Lower Belford via Singleton, New South Wales |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, Benjamin Lambert, Lower Belford via Singleton, New South Wales |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 56th Battalion, 9th Reinforcement |
| AWM Embarkation Roll number | 23/73/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A68 Anchises on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 56th Battalion |
| Fate | Deceased |
| Miscellaneous details (Nominal Roll) | Name spelt Alexander Bavin Lambert on Nominal Roll |
| Place of death or wounding | Villiers-Bretonneux, France |
| Age at death | 24.2 |
| Age at death from cemetery records | 24 |
| Place of burial | Aubigay British Cemetery (Somme) (Row B, Grave No. 24), France |
| Panel number, Roll of Honour, Australian War Memorial | 162 |
| Miscellaneous information from cemetery records | Parents: Benjamin and Eveline LAMBERT, Lower Belford, New South Wales. Native of Singleton |