William Lyon Mackenzie King 1874-1950
Mackenzie King, grandson of William Lyon Mackenzie, was born in Berlin, now Kitchener, Ontario. As a public servant he organized the Department of Labour, and was recognized as an authority on industrial relations. Entering politics in 1908, he became leader of the Liberal Party in 1919, Prime Minister in 1921, and except for three months in 1926, and the years 1930-1935, remained in office until his retirement in 1948. His great skill in compromise enabled him to maintain the political balance among Canada's peoples and regions. He died at Kingsmere, Québec, and was buried in Toronto.
Plaque via Alan L. Brown's site Ontario Plaques. Full page here.