| Regimental number | 13/1027 |
| Address | Waiuku |
| Marital status | Single |
| Next of kin | Father, Henry Flavell, Waiuku |
| Rank on embarkation | Trooper |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, 5th Reinforcements, Auckland Mounted Rifles |
| Embarkation details | Unit embarked from Wellington on 13 June 1915 |
| Final rank | Trooper |
| Final unit | New Zealand Mounted Machine Gun Squadron |
| Fate | Killed in Action 14 November 1917 |
| Place of burial | Ramleh War Cemetery (Row M, Grave No 37), Palestine |
| Family/military connections | Brother: 14248 William FLAVELL |
| Miscellaneous details | Nominal Roll Vol. 1: Auckland Mounted Rifles/Fifth |