A series of colourful maps on the Archives of Ontario website shows how the borders of Ontario evolved from 1774 to 1912. Published for the Government of Ontario in 1969, these maps can help genealogists better pinpoint where their ancestors may have lived during a particular period of time.
The British North America Act in 1867 merged the Province of Canada, New Brunswick and Nova Scotia to form the Dominion of Canada. The provinces of Ontario and Quebec replaced the former Province of Canada. Source: Archives of Ontario. Map scanned from the Economic Atlas of Ontario / Atlas Économique de l’Ontario W. G. Dean, Editor. Printed 1969 by University of Toronto Press for the Government of Ontario.
