"Describes the contributions of Negro inventors to the development of the railway transportation system in the United States.  Discusses racial discrimination by railroads and labor practices involving Negroes.  From The Filling the Gaps in Black History series."--Audiovisual Materials Catalog 2002-2007 by Audiovisual Services of St. Louis Public Schools.

"Describes the contributions of black inventors whose creative genius made the railroads safer and more efficient. Discusses racial discrimination by railroads, and labor practices involving negroes."--WorldCat.