| Regimental number | 6/2495 |
| Address | c/o Mrs J J Casy, Featherston Street, Palmerston North |
| Marital status | Single |
| Next of kin | Father, Edward Costello, Boolteen, Castlemaine, County Kerry, Ireland |
| Rank on embarkation | Private |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, 5th Reinforcements, Canterbury Infantry Battalion |
| Embarkation details | Unit embarked from Wellington on board Maunganui on |
| Final rank | Private |
| Final unit | Canterbury Infantry Battalion |
| Fate | Died of wounds |
| Age at death from cemetery records | 23 |
| Place of burial | Kiltallagh Catholic Churchyard, Castlemaine, County Kerry, Ireland |
| Miscellaneous information from cemetery records | Father: Edmond Costelloe, Boolteens, Castlemaine |
| Other details |
War service: Egypt, Gallipoli Medals: 1914-15 Star, British War Medal, Victory Medal |
| Miscellaneous details | Nominal Roll Vol. 1: Canterbury Infantry Batln/Fifth |