| Regimental number | 8/401 |
| Address | East Road, Invercargill |
| Marital status | Single |
| Next of kin | Father, John Kirwan, East Road, Invercargill |
| Rank on embarkation | Private |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, Main Body, Otago Infantry Battalion |
| Embarkation details | Unit embarked from Wellington on 16 October 1914 |
| Members of the Otago Infantry Battalion, Main Body, left Wellington on 16 October 1914 on two ships, HMNZT 9 'Hawke's Bay' and HMNZT 5 'Ruapehu'. From the Nominal Roll it is not possible to determine on which ship an individual embarked. |
| Family/military connections | Brothers: 12936 Pte John KIRWAN, 1st Bn, Otago Infantry Regiment, killed in action, 12 October 1917; 19150 William KIRWAN. |
| Miscellaneous details | Nominal Roll Vol. 1: Otago Infantry Batln/Main Body |
