Statistics for occurrence #1 of “United States” in chapter 7 of Admiral David D. Porter, The Naval History of the Civil War.:

...n time Messrs. Mason and Slidell were confined in Fort Warren (in Boston harbor), as close prisoners. The excitement in England was intense, and all those who entertained ill feelings against the United States and her institutions were not slow in manifesting them. The British Government took the matter in hand at once, and preparations for war were commenced on a large scale. Troops were sent to Can...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
United States (United States) 100,886 694 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.