Statistics for occurrence #1 of “United States” in year 1861, month April of Rebellion Record: a Diary of American Events, Diary from December 17, 1860 - April 30, 1864:

...pated hostilities. The Home Guard corps of old gentlemen, who occupy the position of military exempts, rode through the city, arousing the soldiers, and doing other duty required by the moment. United States vessels were reported off the bar. Major Anderson displayed signal lights during the night from the walls of Fort Sumter.--Times, April 10. The State Department at Washington replied to-day to ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
United States (United States) 100,886 2,132 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.