The papers consist of correspondence, unpublished writings, awards, memorabilia, and maps relating to Lincoln Ellsworth's flight across the North Pole in 1926. Included also is a copy of P. Ku?hne's: Chamois-Hunting in Switzerland, with the original drawings and correspondence of Arthur Frost. Principal correspondents are Roald Amundsen, Richard E. Byrd, Calvin Coolidge, Wilbur Cross, Charles Dawes, Frank Kellogg, and Theodore Roosevelt.