| Regimental number | 8/740 |
| Date of birth | |
| Place of birth | Glasgow, Scotland |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | Windsor |
| Marital status | Single |
| Age at embarkation | 20 |
| Height | 5' 6" |
| Weight | 139 lbs |
| Next of kin | Brother, Edward Callaghan, Hampden |
| Previous military service | Served in 10th Infantry Regiment, Territorial Force; still serving at time of NZEF enlistment. |
| Enlistment date | |
| Place of enlistment | Oamaru |
| Rank on embarkation | Private |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, Main Body, Otago Infantry Battalion |
| Embarkation details | Unit embarked from Wellington on |
| Members of the Otago Infantry Battalion, Main Body, left Wellington on 16 October 1914 on two ships, HMNZT 9 'Hawke's Bay' and HMNZT 5 'Ruapehu'. From the Nominal Roll it is not possible to determine on which ship an individual embarked. | |
| Final rank | Private |
| Final unit | Otago Infantry Regiment |
| Fate | Killed in Action |
| Place of burial | No known grave |
| Commemoration details | Twelve Tree Copse (New Zealand) Memorial, Gallipoli, Turkey |
| Other details |
War service: Egypt, Gallipoli Embarked Alexandria to join the Mediterranean Expeditionary Force (Gallipoli Campaign), 12 April 1915. Reported missing, 1-20 May 1915. Board of Enquiry, held at Moascar Camp, Ismailia, 20 January 1916, concluded: Missing - Now believed to be dead'. Medals: 1914-15 Star, British War Medal, Victory Medal |
| Miscellaneous details | Nominal Roll Vol. 1: Otago Infantry Batln/Main Body |
| Sources | Archives New Zealand (Wellington), Agency AABK, Series 1880, File 21891190 |