Phi Chi Theta is a business and economics fraternity that was founded on June 16, 1924 in Chicago, Illinois; the now inactive University of Oregon chapter was formed in 1962. The collection includes correspondence, minutes, office files and artifacts, 1976-1978

Pi Mu Epsilon dedicates itself to the promotion of mathematics and recognition of students who successfully pursue mathematical understanding. The University of Oregon Chapter, Oregon Alpha, was established in 1931 but is now inactive. Collection includes correspondence, initiation material, and artifacts from this fraternity, 1925-1930's.