jailed for 8 months. He was banished from the province in August 1819. His expulsion made him a martyr in the reform community. The next wave of organised Reform activity emerged in the 1830s through the work of William Lyon Mackenzie, James Lesslie, John Rolph, William John O'Grady and Dr Thomas Morrison, all of Toronto. They were critical to introducing the British Political Unions to Upper Canada. Political Unions were not parties. The unions organised petitions to Parliament. The Upper Canada Central Political Union was organised in 1832–33 by Dr Thomas David Morrison (mayor of Toronto in 1836) while William Lyon Mackenzie was in England. This union collected 19,930 signatures on a petition protesting Mackenzie's unjust expulsion from the House of Assembly by the Family Compact. This union was reorganised as the Canadian Alliance Society (1835). It shared a large meeting space in the market buildings with the Mechanics Institute and the Children of Peace. The Canadian Alliance Society adopted much of the platform (such as secret ballot & universal suffrage) of the Owenite National Union of the Working Classes in London, England, that were to be integrated into the Chartist movement in England. The Canadian Alliance Society was reborn as the Constitutional Reform Society (1836), when it was led by the more moderate reformer, Dr William W. Baldwin. After the disastrous 1836 elections, it took the final form as the Toronto Political Union in 1837. It was the Toronto Political Union that called for a Constitutional Convention in July 1837, and began organising local "Vigilance Committees" to elect delegates. This became the organizational structure for the Rebellion of 1837. Upper Canada Rebellion of 1837 The Upper Canada Rebellion was an insurrection against the oligarchic government of the Family Compact in December 1837, led by William Lyon Mackenzie. Long term grievances included antagonism between Later Loyalists and British Loyalists, political corruption, the collapse of the international financial system and the resultant economic distress, and a growing republican sentiment. While public grievances had existed for years, it was the Lower Canada Rebellion (in present day Quebec) that emboldened rebels in Upper Canada to revolt openly soon after. The Upper Canada Rebellion was largely defeated shortly after it began, although resistance lingered until 1838 (and became more violent) – mainly through the support of the Hunters' Lodges, a secret anti-British American militia that emerged in states around the Great Lakes. They launched