WILLIAMSON COUNTY, situated in the south part of Illinois. Area, 432 square miles. Seat of justice, Marion. Pop. in 1840, 4,457; in 1850, 7,216. (Fanning's, 1853)
How to Cite This Page: "Williamson County, IL," House Divided: The Civil War Research Engine at Dickinson College, https://hd.housedivided.dickinson.edu/index.php/node/21166.