Diaries; logbooks; autobiographical notes; research file of Balchen's wife, Audrey S. Balchen; scrapbooks; photographs; and other papers relating to Balchen's career in aviation and exploration. Documents his service as pilot on Richard Evelyn Byrd's 1927 transatlantic flight and on Antarctic expeditions with Byrd (1928-1930) and Lincoln Ellsworth (1933-1935); his World War II service with the U.S. Army Air Corps (later the Army Air Forces) including construction of an air base on Greenland and support for the Norwegian underground resistance movement; and his work with Norske luftfartselskap (Norwegian Airlines) in the 1930s and 1940s. Includes Balchen's log (1926) for the trimotor Josephine Ford; drafts of his autobiography, Come North with Me : An Autobiography (1958); and an interview with Balchen by Ben Kocivar.