Statistics for occurrence #1 of “State of Pennsylvania” in chapter 14 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 5: Forts and Artillery.:

...o small for him to inspect. He was a graduate of the United States Military Academy in the class of 1835. He resigned his commission soon after graduation, and entered the railroad service in the State of Pennsylvania . His especial forte, was bridge-building. In 1846 he became identified with the Pennsylvania Railroad, and in 1865 he became interested in the Hoosac Tunnel project in Massachusetts, which he car...
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