Statistics for occurrence #1 of “United States” in chapter 34 of Varina Davis, Jefferson Davis: Ex-President of the Confederate States of America, A Memoir by his Wife, Volume 1:

...ion of emigration across the plains; that in Texas, Indian hostilities had diminished both in frequency and importance; that permanent positions on the Rio Grande, the boundary between Mexico and the United States , had been strengthened, especially a strong post opposite El Paso; that it was in contemplation to establish a large post at the point where the great trail of the Comanches crossed the Rio Grande; ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
United States (United States) 100,886 252 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.