| School | Continuation School, Melbourne, Victoria |
| Other training | Graduate of Royal Military College, Duntroon. |
| Religion | Church of England |
| Occupation | Permanent soldier |
| Address | 29 Punt Road, Windsor, Victoria |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Father, James Bretherton, 29 Punt Road, Windsor, Victoria |
| Enlistment date | |
| Rank on enlistment | Lieutenant |
| Unit name | 29th Battalion, D Company |
| AWM Embarkation Roll number | 23/46/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A11 Ascanius on |
| Rank from Nominal Roll | Captain |
| Unit from Nominal Roll | 18th Battalion |
| Other details from Roll of Honour Circular | Attended the 1912 Canadian Exhibition with the Australian Cadets. |
| Fate | Killed in Action |
| Place of death or wounding | Flers, France |
| Age at death | 21 |
| Age at death from cemetery records | 21 |
| Place of burial | Guards' Cemetery (Plot II, Row D, Grave No. 3), Lesboeufs, France |
| Panel number, Roll of Honour, Australian War Memorial | 84 |
| Miscellaneous information from cemetery records | Parents: James and Emily BRETHERTON, 43 College Street, Garden Vale, Victoria |
| Family/military connections | Cousin: 22 Pte Richard Bartholomew BRETHERTON, 38th Bn, killed in action, 28 May 1917. |