East York
In 1998, East York, along with North York, York, Scarborough, Etobicoke and Old Toronto, were amalgamated into the new "megacity" of Toronto. East York's last mayor was Michael Prue who went on to become city councillor for East York, and then a Member of Provincial Parliament for Beaches—East York in 2001. Between 2002 and 2005, the East York Civic Centre's "True Davidson Council Chamber" was used to hold the Toronto Computer Leasing Inquiry/Toronto External Contracts Inquiry.
Humber River—Black Creek
The riding was re-created in 1914 from parts of York Centre and York South when the county of York, including parts of the city of Toronto, was divided into four ridings: York North, South, East and West. West York was defined to consist of the townships of Vaughan and Etobicoke and the villages of Weston, New Toronto, Mimico and Woodbridge and Ward 7 of the city of Toronto; and the portion of the township of York lying between the western limit of the city of Toronto and the township of Etobicoke bounded on the south by Lake Ontario and on the north by Northland Avenue.