Addresses for County Courthouse and IRAD:

Established:		March 30, 1837 (Laws, 1837, p. 101)
Origin of the name of the county:
	Named for Lewis Cass, a soldier as well as a statesman, Territorial Governor of Michigan, Minister to France, United States Senator from Michigan, Secretary of War under Jackson, Secretary of State under Buchanan, and at one time a prominent candidate for the Presidency.
Present area, or parts of it, formerly included in:
	1823–1837	Morgan
	1821–1823	Greene
	1812–1821	Madison
	1790–1812	St. Clair
County Seats:
	1837–1839	Beardstown
	1839–1843	Virginia
	1843–1867	Beardstown
	1867–	Virginia
	The Beardstown courthouse, used from 1844 to 1867, now serves as Beardstown City Hall. It was the site of the famous "Almanac Trial" where Abraham Lincoln established the innocence of Duff Armstrong using an almanac.
History of county governing board:
	1837–1849	County Commissioners’ Court
	1849–1873	County Court
	1873–1924	Board of County Commissioners
	1924–	County Board of Supervisors
Township Government
	Adopted:	November 6, 1923
Township Names:
	Arenzville
	Ashland
	Beardstown
	Bluff Springs
	Chandlerville
	Hagener
	Newmansville
	Panther Creek
	Philadelphia
	Sangamon Valley
	Virginia