| Regimental number | 6564 |
| Place of birth | Sydney, New South Wales |
| School | Marist Brothers High School, Darlinghurst, NSW (Catholic) |
| Religion | Roman Catholic |
| Occupation | Clerk |
| Address | Marrickville, New South Wales |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Mother, Mrs E Geary, 59 Pile Street, Marrickville, Sydney, NSWi |
| Previous military service | Served in Citizen Military Forces, 35th Regt. |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 17th Battalion, 19th Reinforcement |
| AWM Embarkation Roll number | 23/34/4 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A18 Wiltshire on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 17th Battalion |
| Other details from Roll of Honour Circular | Died in England of broncho-pneumonia. |
| Fate | Died of disease |
| Miscellaneous details (Nominal Roll) | *Spelt Michael Phillip Geary on NR |
| Age at death | 21 |
| Age at death from cemetery records | 21 |
| Place of burial | Durrington Cemetery (Grave No. 240), Wiltshire |
| Panel number, Roll of Honour, Australian War Memorial | 82 |
| Miscellaneous information from cemetery records | Parents: James and Emily GEARY, 59 Pile Street, Marrickville, Sydney |