| Regimental number | 24/1267 |
| Address | Frankton Junction, Auckland |
| Marital status | Single |
| Next of kin | Brother, E J Guiness, Railway Buildings, Wellington |
| Rank on embarkation | Captain |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, New Zealand Rifle Brigade, 2nd Battalion, B Company |
| Embarkation details | Unit embarked from Wellington on board Tahiti on |
| Final rank | Captain |
| Final unit | 2nd Battalion, New Zealand Rifle Brigade |
| Fate | Died of wounds |
| Age at death from cemetery records | 41 |
| Place of burial | Estaires Communal Cemetery and Extension (Plot III, Row K, Grave No 11), France |
| Miscellaneous information from cemetery records | Father: Mr J. Guiness, Christchurch |
| Other details |
Medals: 1914-15 Star, British War Medal, Victory Medal |
| Miscellaneous details | Nominal Roll Vol. 1: B Company/2nd NZRB |