John George Diefenbaker (1895-1979) was prime minister of Canada and leader of the Progressive Conservative party. Though his government had some remarkable successes, he left a legacy of bitterness and disunion for his party.

John Diefenbaker was born in Neustadt, Ontario, on Sept. 18, 1895. In 1903 his family, which was of both Scottish and German descent, moved west to Fort Carlton, north of Saskatoon, to homestead. His father, William Thomas Diefenbaker, was a teacher and encouraged literacy in his family. It was from this love of books that young John learned of Canadian prime minister Sir Wilfred Laurier, and decided he would follow in his hero's footsteps.

Diefenbaker achieved a B.A. in 1915 and an M.A. in political science and economics in 1916, both from the University of Saskatchewan. After war service in England in 1916, he was invalided home, and resumed studies at Saskatchewan, graduating with an LL.B. in...