Included Special Collections' twentieth-century material is the General Jose Maria Maytorena Papers, a gift to Claremont McKenna College in 1967 from the General’s son. Maytorena was a protagonist of the 1910 revolution in Mexico. As governor of Sonora, a province of northern Mexico, and an ardent supporter of the short-lived presidency of Francisco Madero, he was caught in the conflict between the revolutionaries and fled to exile in Los Angeles. He provided an account of his role in Sonora and the revolution in Mi Gobierno en Sonora, one of the manuscripts found in his papers along with correspondence, photographs, newspaper clippings and documents—a total of 2,272 pieces. Significant items from Maytorena’s correspondence relate to Venustiano Carranza, Francisco Madero, Alvaro Obregon, and other participants in the revolution.