Statistics for occurrence #1 of “United States” in chapter 1.38, section c.1.38.140, page 320 of Southern Historical Society Papers, Volume 25.:

...n Washington for the greater part of half a century. This naturally threw her children into the most pleasant surroundings and companionship. I personally remember and knew every President of the United States from the time of Martin Van Buren.
...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
United States (United States) 100,886 90 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.