Statistics for occurrence #1 of “Illinois” in chapter 4.10 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 1: The Opening Battles.:

...ccupied and tuned up for the active service before them. Across the Mississippi was the battery at Bird's Point, on the Missouri shore. This and Fort Darling were occupied by the First and Second Illinois Light Artillery, but their labors were chiefly confined to the prevention of contraband traffic on the river. The troops at Cairo did not see any campaigning till Grant led them to Paducah, Ky., Se...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Illinois (Illinois, United States) 6,200 22 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.