as a doctor, Morrison was appointed to a reconsecrated Cholera Hospital in 1834. The outbreak was declared later that year while Morrison was a member of the Toronto Board of Health. Morrison quarrelled with Tory members over accusations that Mackenzie, the city's mayor, was interfering with the work of health officers. Morrison was removed from the board when it was restructured two weeks after the outbreak's declaration. Tory newspapers speculated of an argument between Mackenzie and Morrison over the lieutenant governor's offer to fund the Cholera Hospital. Mackenzie explained in his newspaper that Morrison did not want to apply for more funding to the hospital and consequently resigned from the board. In 1836, the lieutenant-governor appointed Morrison to the Medical Board of Upper Canada. In 1836 he was chosen as mayor of Toronto. His mayoralty focused on the conflict between Reformers and Tories in the provincial legislature, but his term was also credited with new infrastructure projects to improve the city's water supply and an increased number of gas-powered street lamps. His council also approved funding to pave major roads with macadam and created a House of Industry, which allowed for the creation of workhouses the following year. He chose not to run for city council in the subsequent municipal election. Upper Canada Rebellion Morrison was a member of the reform movement and regularly attended their meetings in the 1830s. He hesitated before signing the movement's reform declaration in July 1837 but was appointed to their Central Vigilance Committee. When Mackenzie suggested a revolt in October 1837, Morrison reportedly exclaimed, "This is treason; if you think to entrap me into any such mad scheme, you will find I am not your man." Witnesses at the meeting stated that Morrison spoke against rebellion and threatened to leave if consideration was continued. After the meeting Rolph, Mackenzie and Morrison agreed to send Jesse Lloyd to Lower Canada to meet with the patriotes. Lloyd returned with a letter from Thomas Storrow Brown, a patriote leader, allegedly asking Upper Canada radicals to begin their rebellion to draw troops away from Lower Canada. Morrison was not convinced of this interpretation of the letter and spoke against taking any action. The three men agreed Mackenzie would tour local communities to solicit support for their cause. Morrison gave Mackenzie permission to tell communities he supported the rebellion, but insisted Mackenzie could not commit to or start any