During World War I, he assisted Henry Marshall Tory in establishing the Khaki College in Sussex, England, which offered Canadian soldiers opportunity to develop skills like bookkeeping, animal husbandry, and English.
By 1935 his scope had widened to the national level and he was instrumental in the establishment of the Canadian Association for Adult Education (CAAE), becoming the first director.
Drawing on his early radio experience as an educational tool Corbett's worked with the Canadian Broadcasting Corporation (CBC), the National Film Board (NFB) as well as Canada's Wartime Information Board, and is credited as the creative force[4] behind the popular CBC broadcasts, National Farm Radio Forum (Farm Forum) which ran from 1941 to 1965 that grew out of the New Canada Movement.
In 1949, Corbett headed the Canadian delegation to the first UNESCO World Conference on Adult Education held in Denmark.
Their eldest son Bruce Sherwood Corbett died on November 8, 1944, in action while serving with Royal Canadian Air Force.