Background
The son of Alexandre Rousseau and Marie Proteau, Rousseau was elected to the Canadian House of Commons for the Quebec electoral district of Champlain in the 1900 federal election.
The son of Alexandre Rousseau and Marie Proteau, Rousseau was elected to the Canadian House of Commons for the Quebec electoral district of Champlain in the 1900 federal election.
A Liberal, he was re-elected in the 1904 election and was defeated in the 1911 election. Rousseau was a merchant, farmer, manufacturer and banker. He served as mayor of Sainte-Anne-de-la-Pérade from 1890 to 1896 and from 1904 to 1905.
Rousseau served in the militia during the Fenian raids and later served as lieutenant-colonel for the 4th Regiment of the Chasseurs Canadiens.