| Regimental number | 26152 |
| Date of birth | |
| Place of birth | Napier |
| Religion | Presbyterian |
| Occupation | Bridge carpenter |
| Marital status | Single |
| Age at embarkation | 20 |
| Height | 5' 8" |
| Weight | 151 lbs |
| Next of kin | Father, C Nielsen, Whetukura |
| Previous military service | Served in 9th (Wellington East Coast) Mounted Rifles Regiment, Territorial Force; still serving at time of NZEF enlistment. |
| Enlistment date | |
| Rank on embarkation | Rifleman |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, New Zealand Rifle Brigade, 11th Reinforcements to 2nd Battalion, F Company |
| Embarkation details | Unit embarked from Wellington on board HMNZT 64 Devon on |
| Final rank | Private |
| Final unit | 4th Battalion, New Zealand Rifle Brigade |
| Fate | Killed in Action |
| Age at death from cemetery records | 21 |
| Place of burial | Tyne Cot Cemetery (Plot XXIX, Row D, Grave No 16), Belgium |
| Miscellaneous information from cemetery records | Parents: Charles and Olive Nielsen, Whetukura, Ormondville |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
| Miscellaneous details | No Form B103 on file: scant details available. |
| Sources | Nominal Roll Vol. 2: Roll 41, p. 32 Archives New Zealand (Wellington), Agency AABK, Series 18805, File 21380688 |