| Regimental number | 5813 |
| Place of birth | Geelong, Victoria |
| Religion | Church of England |
| Occupation | Sheep farmer |
| Address | 'Wyandra', Bamfield Street, Sandringham, Victoria |
| Marital status | Married |
| Age at embarkation | 45 |
| Next of kin | Wife, Mrs Eliza Florence Dennis, 'Wyandra' Bamfield Street, Sandringham, Victoria |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 23rd Battalion, 16th Reinforcement |
| AWM Embarkation Roll number | 23/40/4 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A71 Nestor on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 23rd Battalion |
| Fate | Died of wounds |
| Miscellaneous details (Nominal Roll) | *Stated to be John William Dennis on NR |
| Age at death from cemetery records | 46 |
| Place of burial | Cowley (St. Lawrence) Churchyard (Aust. 45), Middlesex. |
| Panel number, Roll of Honour, Australian War Memorial | 98 |
| Miscellaneous information from cemetery records | Parents: John William and Sarah Jacka DENNIS, husband of Eliza Florence DENNIS, "Marola", Trentham Street, Sandringham, Victoria. Native of Geelong, Victoria |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |