Statistics for occurrence #1 of “United States” in chapter 12, page 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:

... VI. 263, 264. X., 87. X., 292. III., 342. X., 4. I., 28 seq., 40, 41, 59, 63 seq., 67, 19, 98, 104, 120, 126, 226, 307, 338; inaugurated President of the United States at Washington, I., 346; II., 20, 49; in camp at Antietam, Md., II., 77, 78, 82, 102, 108, 109, 233, 271, 316; III., 14, 29, 155, 183, 220, 248, 303,304; IV., 24, 50, V., 124, 280; VI., 46, 53, 56, 84...
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

† 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.