1787-1809, IL, Compiled by James W. Blankenship jkblank1(at)sbcglobal.net

Northwest Territory created 13Jul1787

Illinois created 12Dec1778 from Northwest Territory

St.Clair created 27Arp1790 from Illinois

Knox (Old) created 20Jun1790 from Northwest Territory

Randolph (Old) created 05Oct1795 from Illinois

Wayne (Old) created 1796 from Northwest Territory

Indiana Territory created 07May1800 from Northwest Territory

Clark (Old) created 03Feb1801 from Northwest Territory

Ohio statehood Feb 19 1803

Dearborn created 07Mar1803 from Clark 

Michigan Territory created 11Jan1805 from Wayne(Old)

Harrison created 01Dec1808 from Clark & Knox

Illinois Territory created 03Feb1809 from Randolph (Old) & St.Clair