| Regimental number | 4850 |
| Place of birth | London, England |
| Religion | Roman Catholic |
| Occupation | Ship's cook |
| Address | Bristol House, Kent Street, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 37 |
| Height | 5' 6" |
| Weight | 136 lbs |
| Next of kin | Brother, Mr S C McDonnell, London, England |
| Previous military service | Nil |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Place of enlistment | Sydney, New South Wales |
| Rank on enlistment | Private |
| Unit name | 4th Battalion, 15th Reinforcement |
| AWM Embarkation Roll number | 23/21/4 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A15 Star Of England on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 56th Battalion |
| Fate | Returned to Australia |
| Miscellaneous information from cemetery records | Photo: Robert and Sandra Crofts |
| Discharge date | |
| Other details |
War service: Egypt, Western Front Commenced return to Australia on board HT 'Somerset', 12 December 1918; discharged (medically unfit: bronchtis)), Sydney, 24 March 1919. Medals: British War Medal, Victory Medal |
| Date of death | |
| Age at death | 48 |
| Place of burial | Rookwood Necropolis (Sec. R.C. 9, 2467), Sydney, New South Wales |
| Sources | NAA: B2455, McDONNELL William Mark |
