| Regimental number | 1263 |
| Place of birth | Melbourne Victoria |
| Religion | Roman Catholic |
| Occupation | Clerk |
| Address | 95 Lygon Street, Carlton, Victoria |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, Michael Sheahan, 82 Queensberry Street, Carlton, Victoria |
| Enlistment date | |
| Rank on enlistment | Driver |
| Unit name | Field Artillery Brigade 2, Battery 6 |
| AWM Embarkation Roll number | 13/30/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A9 Shropshire on |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | 2nd Field Artillery Brigade |
| Fate | Returned to Australia |
| Miscellaneous details (Nominal Roll) | *Given name Michael Bryan |
| Miscellaneous information from cemetery records | Plaque in Victorian Garden of Remembrance |
| Date of death |