| Regimental number | 8/992 |
| Date of birth | |
| Place of birth | Melbourne, Victoria, Australia |
| Religion | No religious affiliation recorded |
| Occupation | Clerk |
| Address | Balfour |
| Marital status | Single |
| Age at embarkation | 21 |
| Height | 5' 6" |
| Weight | 138 lbs |
| Next of kin | Father, Charles Geldart Wilson, c/o Sargood, Son, & Ewen, Wellington |
| Previous military service | Served in the 14th Regiment, Territorial Force; still serving at time of NZEF enlistment. |
| Enlistment date | |
| Place of enlistment | Milton |
| Rank on embarkation | 2nd Lieutenant |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, Main Body, Otago Infantry Battalion |
| Embarkation details | Unit embarked from Wellington on |
| 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. | |
| Final rank | Captain |
| Final unit | 2nd Battalion, Otago Infantry Regiment |
| Recommendations (Medals and Awards) |
Mention in Despatches 'Operations Somme, South east of High Wood, Flers Grid Trenches - September 20th to October 1st 1916. During the above operations Captain Wilson did magnificent work, first as a second-in-command of a Company and latterly in command of a Company. He was killed leading his men in the most gallant way at the taking of the Grid Support Trench on October 1st. This Officer has always displayed the greatest devotion to duty and utter disregard of danger. He did excellent work not only in Gallipoli as Adjutant of his Regiment but also during the summer of 1916 when holding the line east of Armentieres.' Awarded, and promulgated, 'London Gazette', 1 June 1917. Mention in Despatches 'Sept - Dec Gallipoli Peninsula. Has been at ANZAC without relief from the commencement, employed on the issue of water. Has carried out his duties in an exemplary manner showing great tact, judgement & energy especially under difficult circumstances.' Awarded, and promulgated, 'London Gazette', 28 January 1916. |
| Fate | Killed in Action |
| Age at death from cemetery records | 24 |
| Place of burial | No known grave |
| Commemoration details | Caterpillar Valley (New Zealand) Memorial, Longueval, France |
| Miscellaneous information from cemetery records | Parents: Charles Geldart Wilson and Bertha Emma Wilson, 18 Lindrum Terrace, Roseneath, Wellington |
| Medals |
|
| Other details |
War service: Egypt, Gallipoli, Western Front Medals: 1914-15 Star, British War Medal, Victory Medal |
| Miscellaneous details | Nominal Roll Vol. 1: Otago Infantry Batln/Main Body |
| Sources | Archives New Zealand (Wellington), Agency AABK, Series 18805, File 7881176 |