| Regimental number | 4003 |
| Place of birth | Fitzroy Street, Moore Park, Sydney, New South Wales |
| School | Crown Street Superior Public School, New South Wales |
| Religion | Church of England |
| Occupation | Glass bottlemaker |
| Address | 433 Wattle Street, Ultimo, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, J Sumner, 433 Wattle Street, Ultimo, Sydney, New South Wales |
| Previous military service | Nil |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 2nd Battalion, 12th Reinforcement |
| AWM Embarkation Roll number | 23/19/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A7 Medic on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 2nd Battalion |
| Other details from Roll of Honour Circular | Buried St Severs Cemetery, Rouen. |
| Fate | Died of wounds |
| Place of death or wounding | Hermies, France |
| Age at death | 22.9 |
| Age at death from cemetery records | 22 |
| Place of burial | St. Sever Cemetery Extension (Block O, Plot VII, Row E, Grave No. 2), Rouen, France |
| Panel number, Roll of Honour, Australian War Memorial | 34 |
| Miscellaneous information from cemetery records | Parents: Joseph and Florence Adelaide SUMNER, 4 Clark Street, Annandale, New South Wales. Native of Sydney, New South Wales |
| Family/military connections | Brothers: Gunner Thomas Cecil Sumner no. 11126, 10th FAB; Pte Edward Mark Sumner no. 3136, 35th Bn. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |