| Regimental number | 4/1044 |
| Address | Seymour St Ellerslie Auckland |
| Marital status | Single |
| Next of kin | Father, Nils Herman Eugene Gronwall, Seymour St Ellerslie Auckland |
| Rank on embarkation | Sapper |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, 6th Reinforcements, New Zealand Field Engineers |
| Embarkation details | Unit embarked from Wellington on |
| Miscellaneous details | Nominal Roll Vol. 1: Field Engineers/Sixth |