| Regimental number | 24/20 |
| Address | Macdonald Street, Karori, Wellington |
| Marital status | Single |
| Next of kin | Father, Robert Caldwell, Macdonald Street, Karori, Wellington |
| Rank on embarkation | 2nd Lieutenant |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, New Zealand Rifle Brigade, 2nd Battalion, D Company |
| Embarkation details | Unit embarked from Wellington on 10 October 1915 |
| D Company, 2nd Bn, New Zealand Rifle Brigade, embarked on board five ships: HMNZT 'Mauganui', HMNZT 31 'Tahiti', HMNZT 32 'Aparima', HMNZT 33 'Navua', and HMNZT 34 'Warrimoo'. It is not possible from the Nominal Roll to determine on which ship an individual embarked. |
| Family/military connections | Brother: 6/2088 Lindsley Archibald CALDWELL. |
| Miscellaneous details | Nominal Roll Vol. 1: D Company/2nd NZRB |
