| Regimental number | 49237 |
| Occupation | Labourer |
| Next of kin | Father, Arthur Flack, Waikiwi, Invercargill |
| Rank on embarkation | Lance Corporal |
| Unit name | New Zealand Expeditionary Force, New Zealand Rifle Brigade Reinforcements, J Company |
| Embarkation details | Unit embarked from Wellington on board HMNZT 82 Pakeha on |
| Final rank | Rifleman |
| Final unit | 3rd Battalion, New Zealand Rifle Brigade |
| Fate | Died of wounds |
| Age at death from cemetery records | 30 |
| Place of burial | Bagneux British Cemetery (Plot IV, Row A, Grave No 17), Gezaincourt, France |
| Miscellaneous information from cemetery records | Only son. Parents: Arthur and Agnes Flack, Victoria Street, Richmond Grove, Invercargill |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
| Sources | Nominal Roll Vol. 3: Roll 67, p. 36 |