| Regimental number | 1954 |
| Other Names | John Henry |
| Religion | Salvation Army |
| Occupation | Engineer |
| Address | 'Alpha', Starkey Street, Hurlstone Park, New South Wales |
| Marital status | Married |
| Age at embarkation | 44 |
| Next of kin | Wife, Mrs Mary Alice Mosman, 'Alpha', Starkey Street, Hurlstone Park, New South Wales |
| Enlistment date | 5 March 1916 |
| Rank on enlistment | Private |
| Unit name | 53rd Battalion, 3rd Reinforcement |
| AWM Embarkation Roll number | 23/70/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A37 Barambah on 23 June 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | No 3 Squadron, Australian Flying Corps |
| Fate | Returned to Australia 6 May 1919 |
| Family/military connections | Brother: 1953 Pte James Arthur MOSSMAN, 53rd Bn, returned to Australia, 23 June 1919. |
| Other details | Medals: British War Medal, Victory Medal |
| Date of death | 13 March 1937 |