| Established: |
February 17, 1841 (Laws, 1841, p. 74) |
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| Origin
of the name of the county: |
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Named for Felix Grundy, a lawyer and
politician, United States Senator from Tennessee, and Attorney
General of the United States. |
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| Present
area, or parts of it, formerly included in: |
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1831–1841 |
LaSalle |
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Southeastern Part: |
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1826–1831 |
Vermilion |
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1823–1826 |
Edgar |
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1819–1823 |
Clark |
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Southwestern Part: |
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1827–1831 |
Tazewell |
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1821–1826 |
Fayette |
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North of Illinois River: |
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1825–1831 |
Putnam |
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1823–1825 |
Fulton |
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1821–1823 |
Pike |
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1819–1823 |
Clark |
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1816–1819 |
Crawford |
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1815–1816 |
Edwards |
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1812–1815 |
Madison |
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1801–1812 |
St. Clair |
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1790–1801 |
Knox, Northwest Territory |
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| County
Seat: |
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1842– |
Morris—At a site previously called
Grundytown,
then Grundyville, and finally Morris. |
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| History
of county governing board: |
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1841–1850 |
County Commissioners’ Court |
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1850– |
County Board of Supervisors |
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| Township
Government |
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Adopted: |
November 6, 1849 |
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| Township
Names: |
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Aux Sable |
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Braceville |
Name changed from Addison on June 13, 1850. |
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Erienna |
Name changed from Fairview on June 13, 1850. |
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Felix |
Formed from Wauponsee and Aux Sable in November,
1854. |
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Garfield |
Formed from Greenfield on March 10, 1903. |
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Goodfarm |
Name changed from Dover on June 13, 1850. |
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Goose Lake |
Formed from Felix on September 15, 1897. |
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Greenfield |
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Highland |
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Maine |
Formed from Braceville in March 18, 1898. |
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Mazon |
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Morris |
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Nettle Creek |
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Norman |
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Saratoga |
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Vienna |
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Wauponsee |
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