
| Regimental number | 1134 |
| Place of birth | Semaphore, South Australia |
| School | Le Fevers Peninsula Public School, Semaphore, South Australia |
| Religion | Church of England |
| Occupation | Labourer |
| Address | Military Road, Semaphore, South Australia |
| Marital status | Single |
| Age at embarkation | 17 |
| Next of kin | Father, Herbert Seymour Dumbrill, Military Road, Semaphore, South Australia |
| Previous military service | Served in the 77th Battalion Military Cadets as Bugler. |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 10th Battalion, 1st Reinforcement |
| AWM Embarkation Roll number | 23/27/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT Themistocles on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 10th Battalion |
| Fate | Killed in Action |
| Place of death or wounding | Mouquet Farm, Pozieres, France |
| Age at death | 18.8 |
| Age at death from cemetery records | 18 |
| Place of burial | Courcelette British Cemetery (Plot V, Row D, Grave No. 1), France |
| Panel number, Roll of Honour, Australian War Memorial | 58 |
| Miscellaneous information from cemetery records | Parents: Herbert Seymour and Emily DUMBRILL, Military Road, South Semaphore, South Australia |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |