| Regimental number | 1074 |
| Other Names | Eric Martyn |
| Religion | Church of England |
| Occupation | Clerk |
| Address | Weld Club, Perth, Western Australia |
| Marital status | Single |
| Age at embarkation | 19 |
| Next of kin | Father, Edmund Shelly Barker, Cottesloe, Western Australia |
| Enlistment date | 20 November 1915 |
| Date of enlistment from Nominal Roll | 6 December 1915 |
| Rank on enlistment | Sergeant |
| Unit name | 3rd Pioneer Battalion, D Company |
| AWM Embarkation Roll number | 14/15/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A62 Wandilla on 6 June 1916 |
| Rank from Nominal Roll | Lieutenant |
| Unit from Nominal Roll | 38th Battalion |
| Fate | Returned to Australia 24 December 1918 |