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.
George Gurnett
When York was incorporated in May 1834 as the city of Toronto, Gurnett was elected to the city council as the representative for St. George's Ward. During his 17 years on the city council he served as mayor four times, in 1837, 1848, 1849, and 1850. Due to his long service on council and his years as mayor he is often considered to be one of the founders of the city of Toronto.