| Regimental number | 26/325 |
| Occupation | Station hand |
| Next of kin | Father, C E Thelwall, 36 Percy Street ,Tynemouth, England |
| Rank on embarkation | Rifleman |
| Unit name | New Zealand Expeditionary Force, New Zealand Rifle Brigade, 4th Battalion, D Company |
| Embarkation details | Unit embarked from Wellington on board Ulimaroa on |
| Family/military connections | Brother: 26/326 Clive THELWALL |
| Sources | Nominal Roll Vol. 2: Roll 24, p. 31 |