| Regimental number | 17/119 |
| Date of birth | |
| Place of birth | Hyde, Central Otago |
| Religion | Presbyterian |
| Occupation | Sheep farmer |
| Address | 77 Prince Albert Road, Dunedin |
| Marital status | Married |
| Age at embarkation | 39.4 |
| Height | 5' 8.5" |
| Weight | 166 lbs |
| Next of kin | Wife, Mrs E M F Mathewson, 22 Scott Street, St Kilda, Dunedin |
| Previous military service | Served for 3 years in the Mounted Rifles; not serving in any military unit at time of NZEF enlistment. |
| Enlistment date | |
| Place of enlistment | Trentham |
| Rank on embarkation | Trooper |
| Enlistment status | Volunteer |
| Unit name | New Zealand Expeditionary Force, 2nd Reinforcements, New Zealand Veterinary Corps |
| Embarkation details | Unit embarked from Wellington on |
| The 2nd Reinforcements, New Zealand Veterinary Corps, left New Zealand on board three ships (HMNZT 13 'Verdala', HMNZT 15 'Willochra', and HMNZT 15 'Knight of the Garter'). It is not possible to determine from the Nominal Roll on which ship an individual embarked. | |
| Final rank | Corporal |
| Final unit | 1st Battalion, Otago Infantry Regiment |
| Fate | Killed in Action |
| Age at death from cemetery records | 43 |
| Place of burial | No known grave |
| Commemoration details | Tyne Cot Memorial (New Zealand Apse, Panel No 3), nr Ieper, Belgium |
| Miscellaneous information from cemetery records | Parents: the late Laurence and Johanna Mathewson, Otago; Wife: Effie Mary Mathewson (nee Morgan), 60 Grosvenor Street, Kensington, Dunedin. Native of Hyde, Otago |
| Other details |
War service: Egypt, Western Front Appointed Corporal, Moascar, 1 April 1916. Appointed Temporary Sergeant, 8 May 1916. Embarked Alexandria to join the British Expeditionary Force, France, 10 May 1916; disembarked Marseilles (date not recorded). Attached to No 2 Veterinary Hospital, in the field, 22 June 1916. Attached to No 4 Veterinary Hospital, 28 March 1917. Relinquished appointment of Temporary Sergeant, 23 May 1917. Detached to Base for training and transfer to combat unit, 29 June 1917. Transferred to Otago Infantry Regiment, 1 July 1917; joined 1st Bn, OIR, in the field, 11 August 1917, and posted to 14th Company. Reported missing, 12 October 1917. Court of Enquiry, 17 November 1917, concluded: 'Missing believed killed, 12 October 1917.' Medals: 1914-15 Star, British War Medal, Victory Medal |
| Miscellaneous details | Nominal Roll Vol. 1: Veterinary Corps/Second |
| Sources | Archives New Zealand (Wellington), Agency AABK, Series 18805, File 21373736 |