ILLINOIS STATE ARCHIVES

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Logan County

Established
February 15, 1839 (Laws, 1839, p. 104)

Origin of the name of the county
Named for Dr. John Logan, a pioneer physician, father of General John A. Logan.

Present area, or parts of it, formerly included in
1827–1839 — Tazewell
1821–1839 — Sangamon
1817–1821 — Bond
1812–1817 — Madison
1790–1812 — St. Clair
1790–1801 — Knox, Northwest Territory

County Seats
1839–1847 — Postville – Name changed to Camden prior to 1847.
1847–1853 — Mt. Pulaski
1853– — Lincoln

History of county governing board
1839–1849 — County Commissioners’ Court
1849–1867 — County Court
1867–   — County Board of Supervisors

Documented Record Losses
April 15, 1857 — Fire.
Total record loss (1839–1857).

Township Government
Adopted — November 7, 1865 – Completion of township organization was delayed until 1867 by a court suit.

Township Names
Aetna
Atlanta
Broadwell
Chester — Name changed from Madison to Chester (date unknown, before 1921).
Corwin — Name changed from Middletown (date unknown).
East Lincoln
Elkhart
Eminence
Hurlbut
Laenna
Lake Fork
Mt. Pulaski
Oran
Orvil
Prairie Creek
Sheridan
West Lincoln

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
Logan County Circuit Court Criminal Case Files Index (1857–1945)
Name Index to Illinois Local Governments