Sponsored by the Association of American Railroads, the series condensed musicals and operettas to shorter lengths, concentrating on those written before 1943.
Singer-actor Gordon MacRae starred in scripts by Jean Holloway, Jerome Lawrence and Robert Edwin Lee.
With its theme song, "I've Been Working on the Railroad", the series began on ABC October 4, 1948 as a 45-minute program, advertised as "World's Greatest Musical Comedies."
Kirsten, Warenskjold, Rise Stevens and other performers on The Railroad Hour were also regular guests on Harvest of Stars during the late 1940s.
Many scripts for the series are on file at the Ohio State University's Jerome Lawrence and Robert E. Lee Theatre Research Institute.