Papers of Shepherd, including correspondence with professional colleagues at home and abroad, U.S. government officials, and Latin American government officials dealing with his own publications, his trip to Austria in 1932, and his interest in Latin American affairs, the Institute of Latin American Affairs, the INTER-AMERICAN HISTORICAL SERIES, Latin American area studies, oriental area studies, and the NEW ORIENT SOCIETY. The manuscripts include three boxes of lecture notes on American history in English and German; abstracts and related material of his lecture tour in England, 1922; typescript instructions for his HISTORICAL ATLAS, including maps, related correspondence, and documents; notes, bibliographies, essays, photographs, and related materials on Latin America; a scrapbook of clippings on the Williamstown Institute, 1927; his English literature notebook while an undergraduate at Columbia College, 1893; two boxes and a scrapbook of travel photographs and lantern slides of views from around the world; Shepherd family items include a hand-drawn, hand-colored coat of arms and a letter book of his father, William Shepherd, dated 1867-1871; and Iona Shepherd's 1905 autograph book.

Also, correspondence, speeches, manuscripts, and publications of Shepherd. These materials include clippings covering his speeches and lectures at home and abroad, notes for some of these speeches and lectures, and a few manuscripts and printed articles (but no manuscripts for Shepherd's books). The correspondence includes letters from Carlton J.H. Hayes, James T. Shotwell, Charles A. Beard, Lord James Cecil Salisbury, and Carter Glass.