Founded in 1925, The Brotherhood of Sleeping Car Porters and Maids, commonly referred to as the Brotherhood of Sleeping Car Porters (BSCP), was the first labor organization led by African Americans to receive a charter in the American Federation of Labor (AFL). The BSCP gathered a membership of 18,000 passenger railway workers across Canada, Mexico, and the United States.

Pullman porters were men hired to work for the railroads as porters on sleeping cars. Starting shortly after the American Civil War, George Pullman sought out former slaves to work on his sleeper cars. Their job was to carry passengers’ baggage, shine shoes, set up and maintain the sleeping berths, and serve passengers. Pullman porters served American railroads from the late 1860s until the Pullman Company ceased its United States operations on December 31, 1968, though some sleeping-car porters continued working on cars operated by the railroads themselves and, beginning in 1971, Amtrak. The Pullman Company also operated sleeping cars in Mexico from the 1880s until November 13, 1970. The term "porter" has been superseded in modern American usage by "sleeping car attendant", with the former term being considered "somewhat derogatory".