Sir John Alexander Macdonald was the dominant creative mind which produced the British North America Act and the union of provinces which became Canada. As the first prime minister of Canada, he oversaw the expansion of the Dominion from sea to sea. His government dominated politics for a half century and set policy goals for future generations of political leaders.
Alexander Edmund Batson Davie, lawyer, politician, premier of British Columbia 1887-89 (b at Wells, Eng 24 Nov 1847; d at Victoria 1 Aug 1889). He immigrated to Vancouver Island in 1862 and was the first person to receive a complete legal education there, being called to the bar in 1873.
Grey, Albert Henry George Grey, 4th Earl, governor general of Canada, 1904-11 (b at St James's Palace, London, Eng 28 Nov 1851; d at Howick, Eng 29 Aug 1917). A keen imperialist, Grey saw his appointment as governor general as an opportunity to forge stronger links of empire.
Albert Charles Saunders, lawyer, politician, judge, premier of PEI (b at Summerside, PEI 12 Oct 1874; d there 18 Oct 1943). Saunders, having completed 4 terms as mayor of Summerside, became the Liberal Party leader in 1923, winning the 1927 election by supporting continuing liquor prohibition.
Thomas Clement (“Tommy”) Douglas, premier of Saskatchewan, first leader of the New Democratic Party, Baptist minister, politician (born 20 October 1904 in Falkirk, Scotland; died 24 February 1986 in Ottawa, ON). Douglas led the first socialist government elected in Canada and is recognized as the father of socialized medicine. He also helped establish democratic socialism in the mainstream of Canadian politics.