Pennsylvania Railroad

The Pennsylvania Railroad {{reporting mark|PRR}} was an American railroad existing 1846–1968, after which it merged into Penn Central Transportation. Commonly referred to as the Pennsy, the company was headquartered in Philadelphia, Pennsylvania. The company's symbol was a keystone (Pennsylvania's symbol) with the letters PRR overlapping inside it. When colored, it was bright red with silver-grey edges and lettering (although it also appears in metal leaf outline on a wooden background on station benches).

References

• Pennsylvania Railroad Technical and Historical Society
• PRR Chronology - in depth
• PRR Corporate History
• Railroad History Database
• PennsyRR.com - comprehensive PRR facts and history site, comprising multiple individual websites.
• prr.railfan.net - contains a lot of Pennsy information, including equipment diagrams, freight car info.
• Keystone Crossing: Hobo's Guide to the Pennsy
• Atterbury-Bakalar Air Museum (2000), General Atterbury. Retrieved February 21 2005.
• Rensselaer Polytechnic Institute (2005), RPI: Alumni hall of fame: Alexander J. Cassatt. Retrieved February 22 2005.
• President and Fellows of Harvard College (2004), 20th century great American business leaders - Martin W. Clement. Retrieved February 23 2005.
• White, John H., Jr. (Spring 1986), America's most noteworthy railroaders, Railroad History, Railway and Locomotive Historical Society, 154, p. 9-15.
• Pennsylvania Railroad Company Inspection of Physical Property, Board of Directors November 10-11-12, 1948