| Regimental number | 275 |
| Place of birth | London England |
| Religion | Presbyterian |
| Occupation | Labourer |
| Address | 9 Firth Gardens, Fulham, London, SW |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Mother, Mrs Margaret Mason, 9 Firth Gardens, Fulham, London, SW |
| Enlistment date | 16 February 1915 |
| Date of enlistment from Nominal Roll | 16 February 1915 |
| Rank on enlistment | Private |
| Unit name | 19th Battalion, A Company |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT Ceramic on 25 June 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 19th Battalion |
| Fate | Discharged 5 February 1917 |
| Miscellaneous details | Name recorded as John Ernest MASON on Embarkation Roll |
