Reform movement (pre-Confederation Canada)
In Upper Canada (Ontario), the Reform movement was formed in opposition to the Family Compact. It was led initially by William Lyon Mackenzie, who became the principal figure in the Upper Canada Rebellion of 1837. Mackenzie went into exile as a result of the failed rebellion. The uprising led to the 1839 Durham Report, which recommended responsible government and the union of Upper and Lower Canada as a means of assimilating Francophones. Only the union of the Canadas was to be immediately implemented.
Reform movement (pre-Confederation Canada)
In 1841, the Act of Union went into effect. Upper Canada became Canada West, forming with Canada East (Quebec) the United Province of Canada. The leaders of the Reform movement in Canada West at this point were Robert Baldwin and Francis Hincks. The Reformers worked with Louis-Hippolyte LaFontaine and moderate French Canadians to form government at various points in the 1840s. They eventually succeeded in obtaining a democratically-accountable executive and the first administration under the principle of responsible government came to power in 1848.