1895-1979. Canadian Progressive Conservative politician, prime minister 1957-63, when he was defeated after criticism of the proposed manufacture of nuclear weapons in Canada. He was born in Ontario, and moved to Saskatchewan. A brilliant defence counsel, he became known as the `prairie lawyer'. He became leader of his party 1956 and prime minister 1957. In 1958 he achieved the greatest landslide in Canadian history. A `radical' Tory, he was also a strong supporter of Commonwealth unity. He resigned the party leadership in 1967, repudiating a `two nations' policy for Canada. He was known as `the Chief'.