| Regimental number | 8/3216 |
| Address | Brian Boru Hotel, Thames |
| Marital status | Single |
| Next of kin | Brother, O Clarken, Patetonga, Hauraki Plains |
| Rank on embarkation | Private |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, 8th Reinforcement, Otago Infantry Battalion |
| Embarkation details | Unit embarked from Lyttelton on board Willochra on |
| Final rank | Private |
| Final unit | 6th (Hauraki) Company, 2nd Battalion, Auckland Infantry Regiment |
| Fate | Killed in Action |
| Age at death from cemetery records | 27 |
| Place of burial | No known grave |
| Commemoration details | Messines Ridge (New Zealand) Memorial, Belgium |
| Miscellaneous information from cemetery records | Parents: John and Mary Ann Clarken. Native of Thames |
| Miscellaneous details | Nominal Roll Vol. 1: Otago Infantry Batln/Eighth |