| Regimental number | 12691 |
| Occupation | Farmer |
| Next of kin | Father, Hugh K Grierson, Solicitor, Southampton, England |
| Rank on embarkation | 2nd Lieutenant |
| Unit name | New Zealand Expeditionary Force, 12th Reinforcements (2nd Draft), New Zealand Mounted Rifles Brigade |
| Embarkation details | Unit embarked from Wellington on |
| Sources | Nominal Roll Vol. 2: Roll 31, p. 1 |