Locomotive Historical SocietySave
This organization promote research and to encourage preservation of documentation pertinent to business history, finance, labor history, and biography as well as technology. The site includes historical railroad information including maps, photos and news. http://www.rrhistorical-2.com/rlhs/
Nashville Railroad Historical SocietySave
Non-profit educational organization formed in 1982 for the purpose of collecting, organizing, preserving, and sharing information and related material. Includes membership details, events, images and a company store. Located in Louisville, Kentucky, United States. http://rrhistorical-2.com/lnhs/
Technical SocietySave
This site provides information about the history of the PRR, access to technical information, archives, equipment diagrams, and other helpful material for persons interested in the PRR. http://www.prrths.com/PRR_Default.html
O Railroad MuseumSave
A web site devoted to the history of railroading as related to the B&O Railroad, the C&O Railway, the Western Maryland Railway, and the railroads of the mid-Atlantic region. http://www.borail.org/