Education
University of Toronto.
University of Toronto.
The son of Horace Hymmen and Clara Dunke, he was educated in Kitchener and at the University of Toronto. Hymmen became a chemical engineer in Kitchener. He served on Kitchener city council and was mayor of Kitchener for six months in 1958 and again from 1963 to 1965.
A member of the Liberal Party, he represented the electoral districts of Waterloo North from 1965 to 1968, and Kitchener from 1968 to 1974, in the House of Commons.