Statistics for occurrence #1 of “Illinois” in chapter 2 of Adam Badeau, Military history of Ulysses S. Grant from April 1861 to April 1865. Volume 1:

...o date from May 17th, his first knowledge or suspicion of this rank coming to him from the newspapers of the day. He had been unanimously recommended for the promotion by the members of Congress from Illinois , no one of whom had been his personal acquaintance. During the war, the entire country was divided by the United States authorities, into military departments, whose boundaries and organization...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Illinois (Illinois, United States) 6,200 24 0 0 0 user votes
Illinois (New Mexico, United States) 4 0 0 0 0 user votes
Illinois (Oregon, United States) 2 0 0 0 0 user votes
Illinois (Colorado, United States) 0 0 0 0 0 user votes
Illinois (Illinois, United States) 0 0 0 0 0 user votes
Illinois (New Mexico, United States) 0 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.