 He represented Montmagny in the House of Commons of Canada as a Liberal member from 1904 to 1908 and as a Conservative member from 1930 to 1935.He represented Montmagny in the Legislative Assembly of Quebec as a Nationalist member from 1908 to 1916.His surname is given as "La Vergne" by some authoritative sources, including his National Assembly of Quebec biographical page, although these same sources spell his father's name as "Lavergne".