Statistics for occurrence #1 of “United States” 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.:

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O. E. Hunt, Captain, United States Army With miles of black and yellow mud between them and the base of supplies, and a short day's ration of bacon and hardtack in their haversacks, the hearts of the weary soldie...
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.