
| Regimental number | 378I |
| Religion | Roman Catholic |
| Occupation | Steward |
| Address | 108 Boundary Street, Paddington, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 33 |
| Next of kin | Mother, Mrs Maher, Dunlop Street, Yarrawonga |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 1st Battalion, 12th Reinforcement |
| AWM Embarkation Roll number | 23/18/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT Mooltan on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 45th Battalion |
| Fate | Killed in Action |
| Miscellaneous details (Nominal Roll) | *second given name two spellings Geoffrey and George |
| Place of burial | Bulls Road Cemetery (Plot I, Row C, Grave No. 7), Flers, France |
| Panel number, Roll of Honour, Australian War Memorial | 140 |
| Miscellaneous information from cemetery records | Listed as William GREGORY MAHER |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |