The Master Print and Drawing Society of Ontario (MPDSO) is the first independent body of specialist collectors of prints and drawings in Canada. Founded in 1985 by Sidney Bregman and Katharine Lochnan, the Society first came into existence as the Master Print and Drawing Society, and operated as a non-profit educational association that provided special assistance to its members with problems unique to collecting. The Society is officially affiliated with the Art Gallery of Ontario, but is an independent organization belonging to its members, and through its Board of Directors determines its objectives, policies and activities, requirements for membership, selection of new members, and the composition of its executive. The executive consists of the President, Vice-President(s), Secretary/Treasurer, and Directors. The President has primary responsibility for determining the Society's activities, making arrangements for lectures, tours, and other special events. Since 1989, the MPDSO has been supported by the Fraser Elliot Foundation in fulfilling its mandate to represent the collective interests of its members in seeking out the expert advice of scholars, curators, and visiting lectures to contribute special assistance with collecting master prints and drawings from the 15th to the mid 20th century.