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	Canada's first prime minister, Sir John A. Macdonald. © Public Domain Source: National Archives of Canada, C-002090
	Governor General Vincent Massey and Prime Minister John Diefenbaker, May 12, 1958. © National Archives of Canada Credit: Duncan Cameron/National Archives of Canada, PA-112693
	Pierre Trudeau at the Liberal leadership convention, April 6, 1968. © National Archives of Canada Credit: Duncan Cameron/National Archives of Canada, PA-111213
	Campaign buttons. © Progressive Conservative Party of Canada Source: National Archives of Canada
	Sir Charles Tupper button. © Progressive Conservative Party of Canada Source: National Archives of Canada
	Lester "Mike" Pearson button. © Liberal Party of Canada Source: National Archives of Canada
	King's Mixed Pickles, c.1925. Artist: A. G. Racey. © Public Domain Source: National Archives of Canada, C-044301
	The Mason and the Overseer (Governor General Lord Dufferin and Prime Minister Alexander Mackenzie), 1875. Artist: Henri Julien. © Public Domain Source: Canadian Illustrated News, April 17, 1875
	Ensign Mackenzie Bowell, Rifle Company, 1864. © Public Domain Source: National Archives of Canada, C-001981