Classroom and office space in Theological Hall was provided for the newly created Queen's Theological College under the provisions of an Act of Parliament respecting Queen's College at Kingston passed on April 1, 1912. From 1912-1925, Queen's Theological College prepared students for ordered ministry in the Presbyterian Church of Canada, but the College was transformed from a Presbyterian institution into a United Church of Canada theological institution serving Canada's new national church created by the union of the Methodist, Congregational, and Presbyterian denominations in Canada in 1925.