February 9, 1913 - March 15, 1913, 1913

Papers consist largely of professional correspondence, his notes as a student, course and departmental files, field notes and bird observation charts, manuscripts of his articles and books, unpublished papers and reprints by other ornithologists, tape recordings, phonograph records and recordmasters, slides, glass plate negatives, half-tone printing blocks, lantern slides, photographs and films; topics documented include bird-banding, bird identification, slide and record sales, advice to prospective and former graduate students, lecture engagements and tours, professional meetings of organizations such as the American Ornithologists' Union and the American Game Association (American Game Protective and Propogation Association), his expeditions to Panama, Hudson Bay, Labrador, Mexico and Alaska, wildlife conservation and game management, his friendship with Louis Agassiz Fuertes, his fifteen-year study of the raising of the ruffed grouse in captivity, his study of the ivory-billed woodpecker, and the acquisition, design, building, and operation of the Laboratory of Ornithology, Cornell University. Also included are personal papers, primarily correspondence with Elsa Guerdrum, whom he married in 1913, as well as correspondence with other family members, and genealogical tables of the Allen family.