Early life and college years; employment with the Nashville, Chattanooga and St. Louis Railway. Depression and his apprenticeship program. Maintenance of the steam locomotives, wartime measures, description of the NC&StL shops during the steam locomotive days, terrain of the NC&StL. Responsibility in Nashville shops: to develop new sources of steam for the shop boilers (burning oil), types of locomotives, instructions for car diesels and the teaching responsibility for apprentices and locomotive firemen to engineers. Merger of the NC&StL and the L&N in 1957. Mr. Sapp was assistant manager of planning and production. Comparison of the NC&StL equipment and that of the L&N. Train crews continued to operate on the same lines as before. There was a learning period for Sapp with WI Johnson in charge. This was the beginning of his experience with freight cars. Moved to the L&N on Jan 1, 1953, and appointed mechanical engineer. He describes the mechanical engineer's office and staff at that time. Large amount of travel involved. Areas of technical development that Sapp was directly involved in until his retirement: design of freight cars; split sill car underframe patented; door mechanism also patented; needed special operation (air pressure used) in Louisville South shops. Good description of the pits and conveyor belts used at the TVA plant at Bull Run; working out of the audio radio system with supplier field testing for freight cars and the American Association of Railroads called in to help. Test track set up near Frankfort that became the specification track for the AAR. Information on the Car Construction Committee of the AAR. Information on other professional organizations that Sapp felt useful during his career.