| Regimental number | 5421 |
| Place of birth | St Arnaud Victoria |
| Religion | Church of England |
| Occupation | Farmer |
| Address | Gre Gre via St Arnaud, Victoria |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Mother, Mrs Mary Ann Northby, Gre Gre via St Arnaud, Victoria |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 23rd Battalion, 14th Reinforcement |
| AWM Embarkation Roll number | 23/40/4 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A28 Miltiades on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 23rd Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brother: 5420 Pte Mortimer NORTHBY, 16th Company, Australian Army Service Corps, returned to Australia, 1 August 1919. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
| Date of death | |
| Place of burial | Fawkner Cemetery |