| Regimental number | 6/4008 |
| Date of birth | |
| Place of birth | Timaru |
| Occupation | Farm labourer |
| Height | 5' 7.5" |
| Weight | 154 lbs |
| Next of kin | Mother, Mrs M Caswell, Albury |
| Enlistment date | |
| Rank on embarkation | Private |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, 10th Reinforcements, Canterbury Infantry Regiment, C Company |
| Embarkation details | Unit embarked from Wellington on board Willochra on |
| Final rank | Private |
| Final unit | 2nd Battalion, Canterbury Infantry Regiment |
| Fate | Killed in Action |
| Place of burial | Caterpillar Cemetery (Plot XIX, Row D, Grave No 2), Longueval, France |
| Miscellaneous information from cemetery records | Parents: Mark and Ellen Caswell, 24 Regent Street, Timaru |
| Family/military connections | Brothers: 17/380 Pte James Walter CASWELL, 2nd Bn, Wellington Infantry Regiment, commenced return to New Zealand, 15 March 1919; 17/382 Pte William CASWELL, 2nd Bn, Wellington Infantry Regiment, killed in action, 23 June 1917; 11/2055 Gunner Francis CASWELL, 3rd NZ Field Artillery Brigade, commenced return to New Zealand, 24 July 1919. |
| Other details |
War service: Egypt, Western Front Disembarked Suez, 10 April 1916. Embarked Port Said for France, 13 April 1916; joined 2nd Bn, Canterbury Infantry Regiment, Armentieres, 18 May 1916. Wounded in action, 28 May 1916 (abdomen and hand); admitted to 2nd NZ Field Ambulance, 29 May 1916; discharged to unit, 14 June 1916; rejoined unit, 15 June 1916. Reported missing in action, 21 September 1916; subsequently confirmed killed in action, 21 September 1916. Medals: British War Medal, Victory Medal |
| Sources | Nominal Roll Vol. 2: Roll 26, p. 14 Archives New Zealand (Wellington), Agency AABK, Series 18805 |