of the National Labor Relations Board: National Labor Policy in Transition, 1937-1947. Albany, N.Y.: State University of New York Press, 1981. Ross, William G. The Chief Justiceship of Charles Evans Hughes: 1930-1941. Columbia, S.C.: University of South Carolina Press, 2007. "Six Hurt in Battle as Sheriff Tries to Oust 'Sit-Downs'." New York Times. February 20, 1937. External links 1939 in United States case law National Labor Relations Board litigation United States labor case law United States Supreme Court cases United States Supreme Court cases of the Hughes Court