| Regimental number | 2743 |
| Place of birth | Tent Hill, New South Wales |
| School | Public School, New South Wales |
| Religion | Church of England |
| Occupation | Miner |
| Address | Emmaville, New South Wales |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, J R Mariner, Emmaville via Deepwater, New South Wales |
| Previous military service | Served in the Cadets. |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 18th Battalion, 6th Reinforcement |
| AWM Embarkation Roll number | 23/35/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A14 Euripides on |
| Regimental number from Nominal Roll | 2713 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 18th Battalion |
| Fate | Killed in Action |
| Place of death or wounding | Menin Road, Belgium |
| Age at death | 23 |
| Age at death from cemetery records | 22 |
| Place of burial | Hooge Crater Cemetery (Plot IXa, Row H, Grave No. 4), Zillebeke, Belgium |
| Panel number, Roll of Honour, Australian War Memorial | 37 |
| Miscellaneous information from cemetery records | Parents: James and Mary MARINER, Woy Woy, New South Wales. Native of Emmaville |
| Family/military connections | Cousin of Pte W Mariner VC 2nd Batt Kings Royal Rifles. |