Statistics for occurrence #1 of “United States” in chapter 14, page 274 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.:

...tle of the engine with shouts of joy. They knew the construction corps was doing its duty, and here was the evidence. In the strict sense of the term, there were but few military railroads in the United States during the Civil War, and these few existed only in portions of the theater of war in Virginia, in Tennessee, and in Georgia. Roads owned by private corporations were seized, from time to time, and...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
United States (United States) 100,886 92 0 0 0 user votes
United States (New Mexico, United States) 6 0 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.