Municipal government of Toronto
On January 1, 1967, several of the smaller municipalities were amalgamated with larger ones, reducing their number to six. Forest Hill and Swansea became part of Toronto; Long Branch, Mimico, and New Toronto joined Etobicoke; Weston merged with York; and Leaside amalgamated with East York. This arrangement lasted until 1998, when the regional level of government was abolished and Etobicoke, North York, East York, York, and Scarborough were amalgamated into Toronto the "megacity". Mel Lastman, the long-time mayor of North York before the amalgamation, was the first mayor (62nd overall) of the new "megacity" of Toronto, which is the successor of the previous City of Toronto.
Government House (Ontario)
After the destruction of the Fort York house, York did not have another Government House until after the War of 1812. In 1815 the government purchased Elmsley House, a more commodious Georgian residence for its Lieutenant Governor. The next Government House was located in a wooded area to the west of the settled portion of the (then) Town of York, roughly midway on the block now occupied by Roy Thomson Hall and Metro Hall in downtown Toronto. Built in 1798, the residence had been the home of the Chief Justice and Speaker of the Legislative Assembly, John Elmsley, and it served as the colony's Government House from 1815 to 1841 (and intermittently from 1841 to 1858, during some of the times when Toronto served as the capital of the Province of Canada). For many years after its purchase by the government, the residence was still known by the name of its former owner, with the correspondence of the Lieutenant-Governor typically dated from "Elmsley House".