| Religion | Church of England |
| Occupation | Assurance clerk |
| Marital status | Single |
| Age at embarkation | 31 |
| Next of kin | Father, John Thomas Cains, 14 Avenue, Glebe Point, Sydney, New South Wales |
| Enlistment date | |
| Rank on enlistment | Captain |
| Unit name | 2nd Infantry Battalion, Tropical Unit, New South Wales Quota |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board SS Eastern on |
| Fate | Returned to Australia |
| Discharge date | |
| Family/military connections | Cousin: 1687 Pte Francis Henry JAMES, 56th Bn, killed in action, 20 July 1916. |
| Other details |
War service: Taken prisoner of war while at sea en route to New Britain. Arrived at Copenhagen, Denmark, 12 December 1918, for repatriation to England and Australia. Medal: British War Medal |