| Regimental number | 13/967 |
| Address | Pakuranga, Auckland |
| Marital status | Single |
| Next of kin | Brother, John Wallen, Whitford, Auckland |
| Rank on embarkation | Trooper |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, 4th Reinforcements, Auckland Mounted Rifles |
| Embarkation details | Unit embarked from Wellington on board HMNZT 23 Waitomo on |
| Final rank | Private |
| Final unit | 2nd Battalion, Auckland Infantry Regiment |
| Fate | Killed in Action |
| Place of burial | No known grave |
| Miscellaneous information from cemetery records | Brother: John Wallen, Whitford, Auckland |
| Other details |
War service: Egypt, Gallipoli, Western Front Medals: 1914-15 Star, British War Medal, Victory Medal |
| Miscellaneous details | Nominal Roll Vol. 1: Auckland Mounted Rifles/Fourth |