Mackenzie, William Lyon
libeland five times reelected by his constituency. As a leader of the Reform party of Upper Canada he went to London in 1832 to obtain redress of grievances. In 1834 he became the first mayor of Toronto. In 1836 he founded the Constitution as a Reform party organ. Enraged by the policies of Sir Francis Bond Head and by the defeat of the Reform party, Mackenzie and a group of insurgents attempted (1837) to seize Toronto, but the rebellion was quickly put down. Mackenzie and others escaped to the United States. He set up a provisional government with fortified headquarters on Navy Island in the Niagara River, but he was later imprisoned for 18 months by the U.S. authorities for violating the neutrality laws (see Caroline Affair). After his release Mackenzie worked as a journalist and writer until the proclamation of general amnesty allowed his return (1849) to Canada. There he was a member (1851–58) of the Legislative Assembly of United Canada (Upper and Lower Canada).
See S. Leacock, Mackenzie, Baldwin, LaFontaine, Hincks (1926 ed.); E. C. Guillet, The Lives and Times of the Patriots (1938).
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