Professor. Reprints (1914–1940) and manuscripts (circa 1930–1948) of both published and unpublished works by Dangerfield, including a history of Oklahoma political campaign platforms from 1890 to 1914; The Hidden Weapon: The Story of Economic Warfare, and other works dealing with international relations, Oklahoma state and local government, and national and foreign affairs; and research notes (circa 1930–1948) concerning the Oklahoma land run of 1889, Oklahoma politics, international law, and international relations, including research material relating to the allied blockade of Germany during World War II.