| Regimental number | 9432 |
| Place of birth | Sydney, New South Wales |
| Religion | Church of England |
| Occupation | Mining engineer |
| Address | Rockhampton, Queensland |
| Marital status | Single |
| Age at embarkation | 34 |
| Height | 5' 9.5" |
| Weight | 172 lbs |
| Next of kin | Brother, Reginald Frederick Barker, Stawell, Victoria |
| Previous military service | Nil |
| Enlistment date | 5 October 1915 |
| Place of enlistment | Rockhampton, Queensland |
| Rank on enlistment | Sergeant |
| Unit name | 11th Field Company Engineers, Section 3 |
| AWM Embarkation Roll number | 14/30/1 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A29 Suevic on 31 May 1916 |
| Rank from Nominal Roll | Staff Sergeant |
| Unit from Nominal Roll | 11th Field Company Engineers |
| Fate | Returned to Australia 7 July 1920 |
| Discharge date | 20 September 1920 |
| Other details | Medals: British War Medal, Victory Medal |