| Regimental number | 1468 |
| Other Names | O'DONNELL, Markus |
| Religion | Methodist |
| Occupation | Woollen-mill hand |
| Address | Bostock Street, Warrnambool, Victoria |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Father, W O'Donnell, Bostock Street, Warrnambool, Victoria |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Gunner |
| Unit name | Field Artillery Brigade 2, Brigade Ammunition Column |
| AWM Embarkation Roll number | 13/30/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A27 Southern on |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | 2nd Field Artillery Brigade Ammunition Column |
| Fate | Returned to Australia |
| Miscellaneous information from cemetery records | Name entered as Marcus O'DONNELL on Cemetery Burial Register. |
| Other details |
Medals: 1914-15 Star, British War Medal, Victory Medal |
| Date of death | |
| Place of burial | Boxhill Cemetery |