Statistics for occurrence #1 of “Illinois” in chapter 5 of George Bancroft, History of the United States from the Discovery of the American Continent, Vol. 3, 15th edition.:

...e the Chickasas; and nearly two years were devoted to preparations for the enterprise. At last, in 1736, the whole force of the colony at the south, with D'Artaguette and troops from his command in Illinois , and probably from the Wabash, was directed to meet, on the tenth of May, in the land of the Chickasas. The government of France had itself given directions for the invasion, and its eye was turned...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Illinois (Illinois, United States) 6,200 72 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.