He was first elected to Parliament at the St. Denis riding in the 1921 general election then re-elected in
1925, 1926 and 1930. Denis died on 1 October 1934 before he was able to complete his fourth term, the 17th Canadian Parliament. His brother Azellus succeeded him as member for St. Denis.
References
^ abcJohnson, J.K. (1968). The Canadian Directory of Parliament 1867-1967. Public Archives of Canada.
^ abNormandin, A.L. (1932). Canadian Parliamentary Guide.