Statistics for occurrence #1 of “Northern Illinois” in chapter 3 of Colonel William Preston Johnston, The Life of General Albert Sidney Johnston : His Service in the Armies of the United States, the Republic of Texas, and the Confederate States.:

... the Wisconsin River, with the Menomonees for their neighbors on the north; the Pottawattamies dwelt about the head-waters of Lake Michigan, and the Sacs and Foxes on both banks of the Mississippi in Northern Illinois , Southern Wisconsin, and Iowa. On the 24th of June the Winnebagoes had suddenly put to death some white people; and seemed disposed to break out into open war, in which also they endeavored to enli...
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