| Regimental number | 63871 |
| Occupation | Labourer |
| Next of kin | Father, Phillip Hennessy, Killinafinch, Tipperary, Ireland |
| Rank on embarkation | Private |
| Unit name | New Zealand Expeditionary Force, 32nd Reinforcements, Auckland Infantry Regiment, A Company |
| Embarkation details | Unit embarked from Wellington on board HMNZT 95 Willochra on |
| Final rank | Private |
| Final unit | 1st Battalion, Auckland Infantry Regiment |
| Fate | Killed in Action |
| Age at death from cemetery records | 35 |
| Place of burial | Flesquieres Hill British Cemetery (Plot V, Row A, Grave No 2), |
| Miscellaneous information from cemetery records | Parents: Philip and Mary Hennessy, Kilnafinch, Latteragh, Thurles, Ireland |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
| Sources | Nominal Roll Vol. 3: Roll 75, p. 26 |