This fonds contains original manuscripts, copies, and photographs, created and collected by A.S. Morton as University Librarian. The records focus on the history of western Canada, especially Saskatchewan. It includes material on the fur trade and exploration, white settlement and interaction with native people, and the Riel Rebellions. Originals of the copied material date from 1623.

This collection consists primarily of correspondence, notes, clippings and photographs. It includes material of other Porter family members.