Statistics for occurrence #1 of “United States” in chapter 18 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Index:

...02-111. Recruits: Southern, better marksmen and horsemen, VIII., 148. McClellan relieved of command of army at, II., 57, 348. : signal camp of instruction at, VIII., 306, 307; United States Signal Service Corps, VIII., 308, 309, 313, 322; signal camp at, VIII., 339. McCarthy's battery, Company C, First Pennsylvania artillery, I., 291. VIII., 259. VIII., 72. ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
United States (United States) 100,886 50 0 0 0 user votes
United States (New Mexico, United States) 6 0 0 0 0 user votes

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