Statistics for occurrence #1 of “United States” in chapter 93 of Rebellion Record: a Diary of American Events: Documents and Narratives, Volume 8.:

...
United States flag-ship Dale, Key West, Fla., March 6, 1864. Hon. Gideon Welles, Secretary of the Navy: sir: I have the honor to report that two expeditions have recently been fitted out from the United States...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
United States (United States) 100,886 640 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.