Adams County, Illinois — Information Updated: May 20, 2013
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Formed from: portions of Pike County. Established: 13-Jan-1825 |
County Seat: Quincy, Illinois
County history
- Adams County is named in honor of John Quincy Adams (1767-1848), sixth President of the United States.
|  Adams Courthouse
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GHLL Adams County Package:
- American History & Genealogy Project; Adams County AHGP and / or ALHN (Not found online at this update.)
- Cemetery Listings - may include photos, records, name lists, etc..
- Cities/Towns/Townships - compiled by Wikipedia
- Genealogy Forum - Adams County, IL Genealogy Forum (Genealogy.com)
Society/Museum/Assn - (Golden Historical Society / Golden, IL) 
- Society/Museum/Assn - (Great River Genealogical Society / Quincy, IL)

- Society/Museum/Assn - (Historical Society of Quincy & Adams County / Quincy, IL)

- US/ILGenWeb site - Adams County Archives
- US/ILGenWeb - Adams County Genealogy & History
- Vital Records - Adams County Clerk, 507 Vermont Street, P.O. Box 1169, Quincy, IL 62301.
Additional Local History/Genealogy:
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Alexander County, Illinois — Information Updated: Apr 10, 2009
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Formed from: portions of Union County. Established: xx-xxx-1819 |
County Seat: Cairo, Illinois
County history
- Alexander County is named in honor of William M. Alexander, an early settler of the county bearing his name and Senator in the second and third General Assemblies of the State.
|  Alexander Courthouse
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Bond County, Illinois — Information Updated: Apr 27, 2010
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Formed from: portions of Madison County. Established: xx-xxx-1818 |
County Seat: Greenville, Illinois
County history
- Bond County is named in honor of Shadrach Bond (November 24, 1773 - April 12, 1832) was a representative from Illinois Territory to the United States Congress. In 1818, he was elected the first Governor of Illinois, becoming the new state's first chief executive. In an example of American politics during the Era of Good Feelings (1817 25), which describes a period in United States political history in which partisan bitterness abated. Bond was elected to both positions without opposition.
|  Bond Courthouse
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- Bond County - American History & Genealogy Project (None found online at the time of this update.)
- Bond County - Cities/Towns/Townships: From Wikipedia
- Bond County - Genealogical/Historical Society (Bond County Genealogical Society / Greenville, IL)

- Bond County - Genealogical/Historical Society (Bond County Historical Society / Greenville, IL)

- Bond County - US/ILGenWeb site: (Archives)
- Bond County - US/ILGenWeb site: Genealogy & History
- Bond County - Genealogy Forum (Genealogy.com)
Additional Local History/Genealogy:
- Bond County Cemeteries - Listings (county & cemetery); may include photos, records, name lists, etc..
- Bond County Vital Records - Bond County Clerk, 203 W. College, Greenville, IL 62246.
Census Information:
- 1820 Census (I) and (T) - Federal Census Bond County (Index: 1 page / Text: 1 page / Notes: 1 page).
- 1830 Census (I) and (T) - Federal Census Bond County (Index: 1 page / Text: 2 page / Notes: 1 page).
- 1850 Census (I) and (T) - Federal Census Bond County (Index: 16 pages / Text: 8 pages / Mortality: 1 page / Notes: 1 page).
- 1860 Census (T) - Federal Census Bond County (Text: 5 pages).
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Boone County, Illinois — Information Updated: Feb 16, 2009
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Formed from: portions of Winnebago County on 03-Mar-1836. Established: xx-xxx-1837 |
County Seat: Belvidere, Illinois
County history
- Boone County is named in honor of Kentucky frontiersman Daniel Boone.
|  Boone Courthouse
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Brown County, Illinois — Information Updated: May 20, 2013
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Formed from: portions of Schuyler County on xx-Feb-1839. Established: xx-May-1839 |
County Seat: Mt. Sterling, Illinois
County history
- Brown County is named in honor of Major General Jacob J. Brown, Commanding General of the United States Army (War of 1812, June 1821-24 February 1828), who won distinction at Sackett's Harbor, Chippewa and Niagara.
|  Brown Courthouse
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GHLL Brown County Package:
- American History & Genealogy Project; Brown County AHGP and / or ALHN (Not found online at this update.)
- Cemetery Listings - may include photos, records, name lists, etc..
- Cities/Towns/Townships - compiled by Wikipedia
- Genealogy Forum - Brown County, IL Genealogy Forum (Genealogy.com)
- Society/Museum/Assn - (Versailles Area Genealogical & Historical Society / Versailles, IL)

- US/ILGenWeb site - Brown County Archives
- US/ILGenWeb - Brown County Genealogy & History
- Vital Records - Brown County Clerk, Courthouse Bldg, 200 West Court, Rm 4, Mount Sterling, IL 62353.
Additional Local History/Genealogy:
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Carroll County, Illinois — Information Updated: Feb 16, 2009
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Formed from: portions of Jo Daviess County. Established: xx-xxx-1839 |
County Seat: Mount Carroll, Illinois
County history
- Carroll County is named in honor of Charles Carroll of Carrollton, Illinois, a statesman of the Revolutionary period, signer of the Declaration of Independence, and United States Senator from Maryland.
|  Carroll Courthouse
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Champaign County, Illinois — Information Updated: Feb 16, 2009
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Formed from: portions of Vermilion County in 1833. Established: 20-Feb-1883 |
County Seat: Urbana, Illinois
County history
- Champaign County is named in honor of Champaign County in Ohio through the influence of emigrants from that county.
|  Champaign Courthouse
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Clinton County, Illinois — Information Updated: Feb 16, 2009
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Formed from: portions of Washington, Bond and Fayette Counties. Established: 28-Dec-1824 |
County Seat: Carlyle, Illinois
County history
- Clinton County is named in honor of DeWitt Clinton (1769-1828), a distinguished lawyer, financier and statesman, Mayor of the city and Governor of the State of New York, United States Senator and chief promoter of the Erie Canal, often referred to as the "Father of the Erie Canal."
|  Clinton Courthouse
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- Clinton County - American History & Genealogy Project
- Clinton County - Cities/Towns/Townships: From Wikipedia
- Clinton County - Genealogical/Historical Society (Clinton County Historical Society & Museum / Carlyle, IL)

- Clinton County - US/ILGenWeb site: Genealogy & History
- Clinton County - Genealogy Forum (Genealogy.com)
Additional Local History/Genealogy:
- Clinton County Cemeteries - Listings (county & cemetery); may include photos, records, name lists, etc..
- Clinton County Vital Records - Clinton County Courthouse, 850 Fairfax Street, Carlyle, IL 62231.
- Illinois Trails - History & Genealogy (Clinton County)
Census Information:
- 1870 Census (T) - Township 1N R1W (three files)
- 1880 Census (T) - Three folders, containing 14 files - ED 077, ED 078, ED 082)
- 1900 Census (T) - ED 015 (three files)
- 1910 Census (T) - ED 08 (three files)
- 1920 Census (T) - ED 09 (three files)
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Cook County, Illinois — Information Updated: Aug 1, 2011
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Formed from: portions of Putnam County. Established: 15-Jan-1831 |
County Seat: Chicago, Illinois
County history
- Cook County is named in honor of Daniel Pope Cook, a pioneer lawyer; in 1816 he was the territorial Auditor of Public Accounts and also served as judge of the western circuit. Cook was also the first Attorney General of the State of Illinois and Representative in Congress from 1819 to 1827.
|  Cook Courthouse
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GHLL Cook County Package:
- American History & Genealogy Project - Cook County AHGP
- Cemetery Listings - may include photos, records, name lists, etc..
- Cities/Towns/Townships - compiled by Wikipedia
- Genealogy Forum - Cook County, IL Genealogy Forum (Genealogy.com)
- Society/Museum/Assn - (Chicago Genealogical Society / Chicago, IL)

- Society/Museum/Assn - (South Suburban Genealogical and Historical Society / Hazel Crest, IL)

- Society/Museum/Assn - (Winnetka Historical Society / Winnetka, IL)

- US/ILGenWeb site - Cook County Archives
- US/ILGenWeb - Cook County Genealogy & History
- Vital Records - Bureau of Vital Statistics, Cook County Building, 118 North Clark Street, Chicago, IL 60662.
Note: The Chicago Fire of 1871 destroyed the Cook County Court House and the official documents which were recorded and filed prior to that date. Compulsory recording of vital statistics did not begin until January 1, 1916 in Illinois. Cook County, however, has a large percentage of registered. births, deaths, and marriages.
Additional Local History/Genealogy:
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Crawford County, Illinois — Information Updated: Apr 27, 2010
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Formed from: portions of Edwards County. Established: xx-xxx-1816 |
County Seat: Robinson, Illinois
County history
- Crawford County is named in honor of William H. Crawford (1772-1834), from Georgia, ninth United States Secretary of War and seventh Secretary of the Treasury.
|  Crawford Courthouse
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- Crawford County - American History & Genealogy Project (None found online at the time of this update.)
- Crawford County - Cities/Towns/Townships: From Wikipedia
- Crawford County - Genealogical/Historical Society (Crawford County Historical Society / Robinson, IL)

- Crawford County - US/ILGenWeb site: (Archives)
- Crawford County - US/ILGenWeb site: Genealogy & History
- Crawford County - Genealogy Forum (Genealogy.com)
Additional Local History/Genealogy:
- Crawford County Cemeteries - Listings (county & cemetery); may include photos, records, name lists, etc..
- Crawford County Vital Records - Crawford County Clerk/Recorder, P.O. Box 602, Robinson, IL 62454-0602.
Census Information:
- 1820 Census (I) and (T) - Federal Census, Crawford County (Index: 1 page / Text: 1 page / Notes: 1 page).
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DeWitt County, Illinois — Information Updated: Apr 27, 2010
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Formed from: portions of Macon and McLean Counties. Established: 01-Mar-1839 |
County Seat: Clinton, Illinois
County history
- DeWitt County is named in honor of DeWitt Clinton (1769-1828), Governor of New York, responsible for the construction of the Erie Canal. Note: The U.S. Census Bureau and the USGS list the county's name as De Witt, although the county uses the name DeWitt (no space).
|  DeWitt Courthouse
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- DeWitt County - American History & Genealogy Project (None found online at the time of this update.)
- DeWitt County - Cities/Towns/Townships: From Wikipedia
- DeWitt County - Genealogical/Historical Society (DeWitt County Genealogical Society / Clinton, IL)

- DeWitt County - US/ILGenWeb site: (Archives)
- DeWitt County - US/ILGenWeb site: Genealogy & History
- DeWitt County - Genealogy Forum (Genealogy.com)
Additional Local History/Genealogy:
- DeWitt County Cemeteries - Listings (county & cemetery); may include photos, records, name lists, etc..
- DeWitt County Vital Records - DeWitt County Clerk, P.O. Box 439, Clinton, IL 61727-0439.
Census Information:
- 1860 Census (T) - Federal Census, DeWitt County (Text: 23 pages).
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DuPage County, Illinois — Information Updated: Nov 2, 2009
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Formed from: portions of Cook County. Established: 09-Feb-1839 |
County Seat: Wheaton, Illinois
County history
- DuPage County is named for the DuPage River, a tributary of the Des Plaines River. (See the history of the River's name using the web link provided for the River.)
|  DuPage Courthouse
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- DuPage County - American History & Genealogy Project
- DuPage County - Cities/Towns/Townships: From Wikipedia
- DuPage County - Genealogical/Historical Society (DuPage County Genealogical Society / Wheaton, IL)

- DuPage County - Genealogical/Historical Society (DuPage County Historical Society / Wheaton, IL)

- DuPage County - US/ILGenWeb site: (Archives)
- DuPage County - US/ILGenWeb site: Genealogy & History
- DuPage County - Genealogy Forum (Genealogy.com)
Additional Local History/Genealogy:
- DuPage County Cemeteries - Listings (county & cemetery); may include photos, records, name lists, etc..
- DuPage County Vital Records - DuPage County Clerk, P.O. Box 1028, Wheaton, IL 60189.
- Fox Valley Genealogical Society - covering portions of DuPage, Kane, Kendall, and Will Counties.
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