| Regimental number | 2630 |
| Place of birth | Lancaster England |
| Religion | Roman Catholic |
| Occupation | Leather goods maker |
| Address | Salisbury Street, Maylands, Western Australia |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, James Dennison, Salisbury Street, Maylands, Western Australia |
| Enlistment date | 20 August 1915 |
| Rank on enlistment | Private |
| Unit name | 28th Battalion, 6th Reinforcement |
| AWM Embarkation Roll number | 23/45/2 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A38 Ulysses on 2 November 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 3rd Light Horse Brigade Headquarters |
| Fate | Returned to Australia 10 July 1919 |
| Miscellaneous details (Nominal Roll) | *Spelt Robert Gardner Dennison on NR |
