Difference between revisions of "Mercer County, Illinois Genealogy"

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==== Newspapers  ====
==== Newspapers  ====
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==== Poorhouse ====
[http://www.cyberdriveillinois.com/departments/archives/mercer.html Mercer County Almshouse Registers Index, 1859-1948], courtesy: Illinois State Archives
==== Probate ====
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Revision as of 22:43, 12 July 2011

Mercer County, Illinois
Boundary map of Mercer County, Illinois
Map of the U.S. highlighting Illinois
Location of Illinois in the U.S.
Founded: January 13, 1825
County Seat Aledo
Address P.O. Box 66
Aledo, IL 61231
Website: www.mercercountyil.org
Named for: Hugh Mercer
Template:Illinois-stubUnited States Gotoarrow.png Illinois Gotoarrow.png Mercer County

County Courthouse


Parent County

  • 1825--Mercer County was created 13 January 1825 from unorganized territory and Pike County. County seat: Aledo [1]

Boundary Changes

Record Loss

Places / Localities

Populated Places

Neighboring Counties


African American

The following have information concerning African American research.


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
1840 Pensioners
  • A Census of Pensioners for Revolutionary or Military Services: With their Names, Ages, and Places of Residence, as Returned by the Marshalls of the Several Judicial Districts, Under the Act for Taking the Sixth Census. Washington, D.C., 1841. FHL 973 X2pc 1840; FHL 2321; digital version at Google Books. [See Illinois, Mercer County on page 187.]




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 ($), and Internet Archive (free)
  • Historical Encyclopedia of Illinois and History of Mercer County. Chicago: Munsell Pub. Co., 1903. Digital version at Ancestry ($).



  • Civil War
    Civil War service men from Mercer 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 Mercer County.
- 30th Regiment, Illinois Infantry, Companies A and G.
- 38th Regiment, Illinois Infantry, Company A.
- 45th Regiment, Illinois Infantry, Company I.
- 65th Regiment, Illinois Infantry (Scotch Regiment), Company B.
- 83rd Regiment, Illinois Infantry, Company D.
- 84th Regiment, Illinois Infantry, Company H.



Mercer County Almshouse Registers Index, 1859-1948, courtesy: Illinois State Archives



Vital Records

Societies and Libraries

The Essley-Noble Museum located at 1406 SE 2nd Ave. in Aledo Illinois is a friendly and well staffed genealogy resource for those researching Mercer County.
They specialize in having an INDEXED cross-referenced obituary collection going back to the early publication dates for the local papers. They also have microfilms available for these papers. They just completed (2010) a project for all the cemeteries in the county which contains GPS locations, which is particularly useful when trying to locate the small and hidden cemeteries in the townships.
Their current project is collecting civil war veteran photos, biographies, histories from Illinois, specifically in Mercer County.
Although the genealogy section is in a corner of the Museum it is well worth the visit. The majority of the building is devoted to collections of period attire, house wares and other antiques.
Visit their web site at mcmuseum@frontier.com for current hours (the volunteers currently staff the facility three days a week) and other details. The mailing address is PO Box 269 Aledo, IL 81231,

Web Sites


  1. The Handybook for Genealogists: United States of America, 10th ed. (Draper, UT: Everton Publishers, 2002), 196. (FHL Collection Ref Book 973 D27e 2002). WorldCat entry.