found: Its Catalogue of the J. Ross Robertson Collection in the Historical Room of the Public Library, Toronto, 1912:t.p. (Public Library, Toronto)
found: NLC 1/83(AACR 2: Toronto Public Library. Name changed in 1968 to Toronto Public Libraries and changed back to Toronto Public Library in 1978)
found: LAC internal file, April 4, 2019(heading: Toronto Public Library; variants: Toronto (Ont.). Public Library; T.P.L.)
found: Toronto Public Library website, viewed on April 4, 2019("1884: Toronto Public Library officially opens in the old Mechanics' Institute building, Church and Adelaide streets, on 6 March - the city's 50th anniversary.")