| Regimental number | 2842 |
| Place of birth | Southern Cross, Western Australia |
| Religion | Church of England |
| Occupation | Draper |
| Address | Meiklejohn Street, Numurkah, Victoria |
| Marital status | Single |
| Age at embarkation | 19 |
| Next of kin | Father, George Brittain, Meiklejohn Street, Numurkah, Victoria |
| Enlistment date | 10 July 1915 |
| Date of enlistment from Nominal Roll | 14 July 1915 |
| Rank on enlistment | Private |
| Unit name | 22nd Battalion, 6th Reinforcement |
| AWM Embarkation Roll number | 23/39/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A38 Ulysses on 27 October 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 2nd Trench Mortar Battery |
| Fate | Returned to Australia 10 December 1918 |
| Family/military connections | Brother: 3204 Pte Edward BRITTAIN, 19th Bn, killed in action, 17 August 1916. |