Records of the Brotherhood of Sleeping Car Porters: Brotherhood of Sleeping Car Porters correspondence, including Porter grievances, Pullman employee representation plan, National Mediation Board proceedings in Brotherhood of Sleeping Car Porters case, New York Citizens Committee of One Hundred, funds advanced to discharged members, Randolph’s speech to the National Urban League Conference, resignation of Ella Jones, president of the Brotherhood of Sleeping Car Porters Ladies Auxiliary, activities of Pullman Company spies and aims of the Trade Union Committee for Organizing Negro Workers, March-April 1927, 1927