| Regimental number | 2495 |
| Place of birth | Deloraine, Tasmania |
| Religion | Church of England |
| Occupation | Fireman |
| Address | Somerset, Tasmania |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Father, Arthur Jago, Somerset, Tasmania |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 26th Battalion, 5th Reinforcement |
| AWM Embarkation Roll number | 23/43/2 |
| Embarkation details | Unit embarked from Hobart, Tasmania, on board HMAT Ballarat on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 26th Battalion |
| Fate | Returned to Australia |
| Miscellaneous details (Nominal Roll) | *Spelt William Claud Jago on NR |
| Family/military connections | Brother: 2494 Pte Leonard Francis JAGO, 26th Bn, killed in action, 29 July 1916. |
| Other details |
Medals: 1914-15 Star, British War Medal, Victory Medal |