Full name, birth date and death and location from the Jones Family Tree by Rayne09. [Also correction to gender]

Known as Trevor

1921 Census of Canada
2242 Pasqua Street, Regina, Saskatchewan
Head John Jones, age 29, born England [Wales], parents born England [Wales], immigrated 1909, nationality Canada, butcher, retail
Wife Mary Jones, age 27, born England [Wales], parents born England
Son John Jones, age 6, born Saskatchewan
Daughter Treva Jones, age 4, born Saskatchewan
Daughter Thelma Jones, age 3, born Saskatchewan
Daughter Edith Jones, age 2 months, born Saskatchewan

Regina Leader Post - Regina, Saskatchewan, May 12, 1944
The engagement is announced of Norma Ellen, eldest daughter of Mrs. Nora A. Prosser and the late Mr. A. E. Prosser of Calgary, to Flt. Sgt. David Trevor Jones, son of Mr. and Mrs. J. Trevor i Jones of Regina, Sask. The marriage will take place at Central United church, Calgary, June 3, 7.30 pm

Findagrave.com
D Trevor Jones
Birth 22 Sep 1917
Death 27 Jan 2002 (aged 84)
Burial Mount Pleasant Cemetery
Edmonton, Edmonton Census Division, Alberta, Canada
Memorial ID 154923337