Author: Ontario Historical Society
Alternate names: Ontario Historical Society.; Conference of the Ontario Historical Society (1987 Toronto, Ont.); Ontario Historical Society. Conference; Ontario Historical Society. Meeting; Ontario Historical Society Conference on Heritage Legislation in Ontario (1977 Toronto, Ont.); Ontario Historical Society. (1956 Brantford, Ont.).; Historical Society of Ontario.; Pioneer and Historical Association of the province of Ontario; Pioneer and Historical Association of the Province of Ontario; Pioneer and Historical Association of the Province of Ontario.