Records, 1931-2022, of the Blue Key Honor Society chapter at Michigan Technological University in Houghton, Michigan. Includes constitution and procedures, minutes, pledge book and ledgers; as well as scrapbooks, photographs, and ephemera. Also included are records pertaining to the Michigan Technological University's Winter Carnival, managed by the Blue Key Honor Society. Records include reports, promotional material, scrapbooks, as well as banners created by fraternities, sororities, and other groups on campus for the carnival. several t-shirts and a goblet.