John Sandfield Macdonald 1812-1872
St. Raphael is the birthplace of John Sandfield Macdonald, Prime Minister of the Province of Canada 1862-64, and first Premier of Ontario 1867-71. First elected to represent Glengarry in the legislature of Canada in 1841, he became one of the leaders of the Reform party and served in several ministries prior to Confederation in 1867. Always independent in his political thinking, he at first opposed the federation of the provinces. Later he co-operated with Sir John A. Macdonald, chief architect of Confederation, at whose request he formed a coalition ministry in Ontario.
Plaque via Alan L. Brown's site Ontario Plaques. Full page here.