| Regimental number | 3240 |
| Place of birth | Allora Queensland |
| Religion | Presbyterian |
| Occupation | Porter |
| Address | Grafton Street, Warwick, Queensland |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, J A Barr, Grafton Street, Warwick, Queensland |
| Enlistment date | 27 July 1915 |
| Date of enlistment from Nominal Roll | 27 July 1915 |
| Rank on enlistment | Private |
| Unit name | 15th Battalion, 11th Reinforcement |
| AWM Embarkation Roll number | 23/32/2 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A48 Seang Bee on 21 October 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 5th Field Ambulance |
| Fate | Returned to Australia 18 January 1919 |
| Family/military connections | Brother: 3241 Pte Alexander Mclean BARR, 5th Field Ambulance, returned to Australia, 31 May 1919. |
