| Regimental number | 9/2054 |
| Occupation | Farmer |
| Next of kin | Father, D P Callanan, Manuka Creek, Otago |
| Rank on embarkation | Trooper |
| Unit name | New Zealand Expeditionary Force, 10th Reinforcements, Otago Mounted Rifles, D Squadron |
| Embarkation details | Unit embarked from Wellington on |
| Final rank | Private |
| Final unit | 1st Battalion, Otago Infantry Regiment |
| Fate | Killed in Action |
| Place of burial | No known grave |
| Commemoration details | Caterpillar Valley (New Zealand) Memorial, Longueval, Somme, France |
| Miscellaneous information from cemetery records | Parents: Mr & Mrs P. Callanan, Manuka Creek, Otago |
| Family/military connections | Brother: 61210 Private Simon CALLANAN |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
| Sources | Nominal Roll Vol. 2: Roll 26, p. 5 |