Correspondence, manuscripts, subject files, and photographs of Tannenbaum, including typewritten lists of property records in the various states of Mexico, ca. 1926; and clippings relating to Mexico. Some of these materials were used in the preparation of his book THE MEXICAN AGRARIAN REVOLUTION. Also, personal letters and files relating to the Farm Security Program, and specifically the Bankhead Bill and the Farm Tenant Bill, 1937, 1934-1937.