Statistics for occurrence #1 of “United States” in entry mason-john-young of Harper's Encyclopedia of United States History:

...ently of the General Court of Virginia. He was Secretary of the Navy under President Tyler; Attorney-General and Secretary of the Navy under President Polk. In 1853 President Pierce appointed him United States minister to France. He died in Paris, Oct. 3, 1859.
...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
† United States (United States) 100,886 16,340 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.