Statistics for occurrence #1 of “Illinois” in chapter 9 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 10: The Armies and the Leaders.:

...s to an application for a charter. They returned to Springfield to present the application in person. On April 6, 1866, Doctor Stephenson issued the charter, signing it as department commander of Illinois , thus creating the first post of the Grand Army of the Republic. The ritual was revised and a constitution written by a committee from this post, at the suggestion of Doctor Stephenson. The commi...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Illinois (Illinois, United States) 6,200 40 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.