| Regimental number | 26/990 |
| Occupation | Bank clerk |
| Next of kin | Father, M F Dennehy, North Street, Timaru |
| Rank on embarkation | Rifleman |
| Unit name | New Zealand Expeditionary Force, New Zealand Rifle Brigade, 4th Battalion, C Company, |
| Embarkation details | Unit embarked from Wellington on board Ulimaroa on |
| Family/military connections | Brother: 46565 Pte Thomas DENNEHY, 1st Battalion, Canterbury Infantry Regiment, killed in action, 12 October 1917. |
| Sources | Nominal Roll Vol. 2: Roll 24, p. 26 |