| Regimental number | 51415 |
| Occupation | Farmer |
| Next of kin | Brother, A Mackay, c/o Post Office, Wendon, Southland |
| Rank on embarkation | Rifleman |
| Unit name | New Zealand Rifle Brigade, Reinforcements, G Company (Second Part) |
| Embarkation details | Unit embarked from Wellington on board HMNZT 95 Willochra on |
| Final rank | Rifleman |
| Final unit | 1st Battalion, New Zealand Rifle Brigade |
| Fate | Killed in Action |
| Age at death from cemetery records | 36 |
| Place of burial | No known grave |
| Commemoration details | Buttes New British Cemetery (New Zealand) Memorial, Polygon Wood, Belgium |
| Miscellaneous information from cemetery records | Parents: John and Jane Mackay, Otama, Southland |
| Sources | Nominal Roll Vol. 3: Roll 66, p. 23 |