22nd Lieutenant Governor of Ontario
April 10, 1974 to September 15, 1980

​Born in Sarnia in 1910, Pauline Mills studied at the University of Toronto and later worked with community and national organizations such as the Imperial Order of the Daughters of the Empire, where she served as National President. In 1935, she married Donald McGibbon. Mrs. McGibbon served as Chancellor of the universities of Toronto and Guelph, Chair of the National Arts Centre in Ottawa, and was a Director of Massey Hall and Roy Thomson Hall. She was appointed an Officer of the Order of Canada in 1967. In 1974, she was sworn in as the first female Lieutenant Governor of Ontario, holding office until 1980. A particular focus of her mandate was the arts in Ontario. After leaving office, Mrs. McGibbon was promoted to be a Companion in the Order of Canada, and was appointed to the Order of Ontario. Mrs. McGibbon died in Toronto in 2001.​​​​