Statistics for occurrence #1 of “Ill.” in chapter 6 of Comte de Paris, History of the Civil War in America. Vol. 3.:

...ns, the key to which we append here: Alabama,Ala. Arkansas,Ark. California,Cal. North Carolina,N. C. South Carolina,S. C. Connecticut,Conn. Delaware,Del. Florida,Fla. Georgia,Ga. Illinois, Ill. Indiana,Ind. Iowa,Ia. Kansas,Kan. Kentucky,Ky. Louisiana,La. Maine,Me. Maryland,Md. Massachusetts,Mass. Michigan,Mich. Minnesota,Minn. Mississippi,Miss. Missouri,Mo. New Hampshire,N. H. ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  

† 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.