| Regimental number | 11871 |
| Place of birth | Diapur, Victoria |
| School | Geelong College, Victoria and state School, Victoria |
| Religion | Church of England |
| Occupation | Storekeeper |
| Address | 288 Smith Street, Collingwood, Victoria |
| Marital status | Single |
| Age at embarkation | 27 |
| Next of kin | Father, G Coles, Wilmot, Tasmania |
| Previous military service | Nil |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Gunner |
| Unit name | Field Artillery Brigade 4, Reinforcement 3 |
| AWM Embarkation Roll number | 13/32/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A32 Themistocles on |
| Rank from Nominal Roll | Sergeant |
| Unit from Nominal Roll | 4th Field Artillery Brigade |
| Fate | Killed in Action |
| Place of death or wounding | Pozieres, Somme Sector, France |
| Age at death | 28 |
| Age at death from cemetery records | 28 |
| Place of burial | Gordon Dump Cemetery (Plot I, Row A, Grave No. 20), Ovillers-La Boiselle, France |
| Panel number, Roll of Honour, Australian War Memorial | 13 |
| Miscellaneous information from cemetery records | Parents: George and Elizabeth COLES, Trevallyn Terrace, Launceston. Native of Diapur, Victoria |
| Family/military connections | Brothers: [75] 2nd Lt Arthur William COLES, 8th Bn, returned to Australia, 31 December 1916; 393 Corporal David Henry COLES, 10th Field Artillery Brigade, died of wounds, 20 October 1917; 3369 Lance Corporal George James COLES, 60th Bn, returned to Australia, 6 November 1918. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |