Statistics for occurrence #1 of “United States” in chapter 7 of John D. Billings, Hardtack and Coffee: The Unwritten Story of Army Life:

...ld then repay it surely, because several letters from their friends at home, each one containing money, were already overdue. People in civil life think they know all about the imperfections of the United States postal service, and tell of their letters and papers lost, miscarried, or in some way delayed, with much pedantry; but they have yet to learn the A B C of its imperfections, and no one that I know of...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
United States (United States) 100,886 48 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.