She taught at the school from its establishment until her retirement in 1991 .
In 1965 Hidy was invited to McMaster University by Lee Hepner , then head of the McMaster Operatic Society , where she became a founding member of the University 's music program .
Hidy taught at the school from its establishment until Hidy 's retirement in 1991 .
In 1965 Hidy was invited to McMaster University by Lee Hepner , then head of the McMaster Operatic Society , where she became a founding member of the University 's music program .