Jonesboro, Illinois
City: Jonesboro
County: Union
State: Illlinois
Lat/Long: 37.4500, -89.2667
In February 1818, Jonesboro became the county seat of the newly formed county of Union. Jonesboro was the site of the third debate between Abraham Lincoln and Stephen A. Douglas.
"An Act adding a part of Pope county to Johnson, and forming a new county out of Johnson county," 2 January 1818, Laws of Illinois Territory (1818), 15-17; William H. Perrin, History of Alexander, Union and Pulaski Counties, Illinois (Chicago: O. L. Baskin, 1883), 286; Edwin Erle Sparks, ed., The Lincoln-Douglas Debates (Dansville, NY: F. A. Owen, 1918), 50-75.