| Regimental number | 876 |
| Religion | Baptist |
| Occupation | Bushman |
| Address | Jervois Street, Port Augusta, South Australia |
| Marital status | Married |
| Age at embarkation | 22 |
| Next of kin | Wife, Mrs. F.M. Rosser, Jervois Street, Port Augusta, South Australia |
| Enlistment date | 14 December 1914 |
| Rank on enlistment | Private |
| Unit name | 3rd Light Horse Regiment, 4th Reinforcement |
| AWM Embarkation Roll number | 10/8/2 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A17 Port Lincoln on 1 April 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 3rd Light Horse Regiment |
| Fate | Returned to Australia 12 July 1918 |
| Miscellaneous details (Nominal Roll) | *Spelt Oscar Hairnes Rosser on NR |
