ILLINOIS STATE ARCHIVES

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Williamson County

Established
February 28, 1839 (Laws, 1839, p. 110)

Origin of the name of the county
Named after Williamson County in Tennessee through the influence of emigrants from that county.

Present area, or parts of it, formerly included in
1818–1839 — Franklin
1816–1818 — Jackson
1812–1818 — Gallatin
1812–1816 — Johnson
1795–1816 — Randolph
1790–1801 — Knox, Northwest Territory

County Seats
1839–  — Marion

History of county governing board
1839–1849 — County Commissioners’ Court
1849–1873 — County Court
1873–1907 — Board of County Commissioners
1907–1933 — County Board of Supervisors
1933–  — Board of County Commissioners

Documented Record Losses
May 30, 1875 — Fire. Some records lost or damaged.

Township Government
Adopted — November 5, 1907
Discontinued — November 1, 1932

Township Names (1907–1932)
Blairsville
Carterville
Corinth
Crab Orchard
Creal Springs
East Marion
Grassy
Herrin
Lake Creek
Southern
Stonefort — Name changed from Saline on January 4, 1908.
West Marion

Township Map

Pertinent Databases
Federal Township Plats of Illinois
Illinois Public Domain Land Tract Sales Database
Illinois Statewide Death Index, 1916–1950
Illinois Statewide Marriage Index
Local Governmental Records Database
Name Index to Illinois Local Governments