Henderson County, Illinois Genealogy

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Henderson County, Illinois
Boundary map of Henderson County, Illinois
Map of the U.S. highlighting Illinois
Location of Illinois in the U.S.
Founded: January 20, 1841
County Seat Oquawka
Henderson County Courthouse.gif
Photo courtesy Illinois Regional Archives Depository, Illinois State Archives
Address Henderson County Courthouse
P.O. Box 308
Oquawka, Illinois 61469


United States Gotoarrow.png Illinois Gotoarrow.png Henderson County

County Organization

Henderson County's civil records start the following years:

                                     Beginning Dates for Henderson County Records
Birth Marriage Death Census Land Probate

County records are most often kept at the County Courthouse or another local repository. For further information about where the records for Henderson County are kept, see the Henderson County Courthouse page.

Historical Facts

Large numbers of Kentuckians settled in frontier Henderson County, Illinois. The name of the county (Henderson) is reminiscent of Henderson County, Kentucky - the previous residence of many pioneer settlers.[1]

Parent County

  • 1841--Henderson County was created 20 January 1841 from Warren County.  County seat: Oquawka [2]

Boundary Changes

See an interactive map of Henderson County boundary changes.

Record Loss

  • Lost census: 1890

Places / Localities

Populated Places

Neighboring Counties

Records and Resources


  • The Historical Encyclopedia of Illinois has a Henderson County edition. This includes a state history section along with a county history and biographies of Henderson County residents. See the wiki article for links to available copies and indexes.


Illinois cemetery records often identify birth, death, relationship, and military information, as well as religious affiliation.

  • Find A Grave can be searched by the name of a person or family to find where a person is buried.  Usually gives birth and death dates often with a picture of the tombstone.  May give obituaries, names of family members and links to their information in Find A Grave.


Historical populations
Census Pop.
IL Counties 1900-1990

Church Records

Court Records


  • 1841–1853 Warren County, Illinois Genealogical Society. Early court commissioner's records of Henderson County, IL: 1841-1853. [S.l.] : Warren County, Illinois Genealogical Society, 1992. Digital version at History Archives FHL book 977.3413 P2w

Copies of original records

Ethnic Research

African American

The following have information concerning African American research.


Land and Property

Additional resources for Henderson County land and property may be found in the FHLC. Copies of records on FHL microfilm and microfiche can be ordered for viewing at Family History Centers. Copies of books found in the FHLC may be found in WorldCat catalog and ordered from your local library through interlibrary loan. Explore how to search the Family History Library Catalog and the Worldcat Online Catalog.

Local Histories

  • History of Mercer and Henderson Counties Together with Biographical Matter, Statistics, Etc. Chicago, Illinois: H.H. Hill and Company, 1882. FHL fiche 6071026; digital versions at Ancestry ($), and Internet Archive (free)



  • Civil War
    Civil War service men from Henderson County served in various regiments. Men often joined a company (within a regiment) that originated in their county. Listed below are companies or regiments that were formed from men of Henderson County.

- 65th Reigment, Illinois Infantry, Company A.
- 84th Regiment, Illinois Infantry, Companies G and K.
- 91st Regiment, Illinois Infantry, Companies B and C.

Newspapers and Obituaries

  • NewspaperArchive.com ($) has historical newspapers online including Burlington, Iowa newspapers dating back to the mid 1800's that may have included Henderson County residents. This database is free at some libraries.

Probate Records

An unspecified number of Henderson County probate records are available in Illinois, Probate Records, 1819-1970.


County Courthouse

County records are most often kept at the County Courthouse or another local repository. For further information about where the records for Henderson County are kept, see the Henderson County Courthouse page.

Family History Center

Illinois Regional Archives Depository (IRAD)

IRAD is a system of Illinois Regional Archives Depositories managed by the Illinois State Archives, housing the archival records of local Illinois counties, townships, municipalities and school districts. The seven Regional Depositories are housed on state university campuses scattered throughout Illinois. Western Illinois University houses the records for Henderson County.

Public Libraries

Social Groups Online



Vital Records

Web Sites


  1. Hardin County Fact Sheet, Illinois State Archives, accessed May 28, 2011.
  2. The Handybook for Genealogists: United States of America, 10th ed. (Draper, UT: Everton Publishers, 2002), 194. (FHL Collection Ref Book 973 D27e 2002). WorldCat entry.