Warren, Charles, 1868–1954, American lawyer and historian, b. Boston. He was admitted to the Massachusetts bar in 1892. An assistant U.S. Attorney General (1914–18), he served as a special master in important cases decided by the U.S. Supreme Court. He drafted the Espionage Act (1917), which was used to censor and imprison radicals. Warren is noted for his scholarly studies of constitutional history, especially The Supreme Court in United States History (3 vol., 1922; rev. ed., 2 vol., 1926, repr. 1960), which won the Pulitzer Prize. He also wrote Congress, the Constitution, and the Supreme Court (1925, repr. 1969) and The Making of the Constitution (1928, repr. 1967).