| Regimental number | 139 |
| Place of birth | Port Cygnet, Tasmania |
| Religion | Roman Catholic |
| Occupation | Butcher |
| Address | Hobart, Tasmania |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, Thomas Brereton, 1 Garden Crescent, Hobart, Tasmania |
| Previous military service | 93rd Infantry |
| Enlistment date | 10 April 1916 |
| Rank on enlistment | Private |
| Unit name | 40th Battalion, A Company |
| AWM Embarkation Roll number | 23/57/1 |
| Embarkation details | Unit embarked from Hobart, Tasmania, on board HMAT A35 Berrima on 1 July 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 10th Field Ambulance |
| Fate | Returned to Australia 8 July 1919 |
| Miscellaneous details (Nominal Roll) | *Given name Dennis Aloysius |
| Date of death | 29 March 1963 |
| Place of burial | Cornelian Bay Cemetery |