Filles de la Sagesse
Senator O'Connor College School was founded by the Brothers of the Christian Schools and the Daughters of Wisdom in 1963 as "John J. Lynch High School", becoming the first co-educational Catholic school in the Toronto archdiocese. However, boys were taught by Christian Brothers and girls were taught on a different floor by nuns with the Daughters of Wisdom. In 1965, the second school building designed in an hexagon by Fisher Tedman Architects was erected, given the name "Senator O’Connor College School" with Brother Denis F.S.C. as its inaugurating principal. Starting in the 1967–68 school year, the "Senator O'Connor" name became the name for the whole school combining the Lynch and O'Connor buildings while the ninth and tenth grades were placed by the MSSB while grades 11–13 continued to be taught by their religious orders. The high school was built on land given to them by Senator Frank Patrick O'Connor, a Catholic philanthropist and founder of Laura Secord Chocolates, a Canadian chocolatier and ice cream company.