| Regimental number | 10712 |
| Occupation | Law clerk |
| Next of kin | Father, Major G Clark-Walker, Whangarei |
| Rank on embarkation | 2nd Lieutenant |
| Unit name | New Zealand Expeditionary Force, 12th Reinforcements (2nd Draft), 1st New Zealand Cyclist Company |
| Embarkation details | Unit embarked from Wellington on board HMNZT 52 Mokoia on |
| Sources | Nominal Roll Vol. 2: Roll 31, p. 3 |