Our Leaders Of Canada: Sir John Alexander McDonald was the first Prime Minister of Canada. He was born on January 11, 1815. Before he was Prime Minister he was a lawyer and he graduated from Oxford University.2.Wilfrid Laurier was the seventh Prime Minister of Canada. He was born on February 17, 1919. He also graduated from McGill University and he was a lawyer before he became Prime Minister.3. Lester Pearson was the fourteenth Prime Minister of Canada. He was born on April 23, 1897. He graduated from the University of Toronto and Oxford University. 4. Stephen Harper is the 22nd Prime Minister. He was born on April 30th, 1959. He graduated from the University of Calgary. 5. Mackenzie King was the tenth Prime Minister of Canada. He graduated from the University of Chicago, Toronto and Harvard as well.