Mason County, Illinois GenealogyEdit This Page

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Mason County, Illinois
Boundary map of Mason County, Illinois
Map of the U.S. highlighting Illinois
Location of Illinois in the U.S.
Founded: January 20, 1841
County Seat Havana
Address 100 N. Broadway
Havana, IL 62644
Named for: Mason County, Kentucky
United States Gotoarrow.png Illinois Gotoarrow.png Mason County


Mason County Organization

                                     Beginning Dates for Mason 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 Mason County are kept, see the Mason County Courthouse page.

Historical Facts

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

Parent County

  • 1841--Mason County was created 20 January 1841 from Tazewell and Menard Counties.  County seat: Havana [2]

Boundary Changes

Record Loss

Places / Localities

Populated Places

Neighboring Counties




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

Ethnic Research

African American

The following have information concerning African American research.



Land and Property

BLM GLO Records. Search original land patents for Mason County from the Govenment Land Office (GLO) or Eastern States Office. Some searches include images of the original warrants. All search results include the patant details needed for requesting copies of the land entry files at the National Archives.  The GLO is the custodian of millions of land title documents. The General Land Office Automated Records Project is responsible for making these important documents available to the public.

Illinois Public Domain Land Tract Sales. The Illinois State Archives has an online index to the records of Public land sales held by the State Archives. The indexes are by purchasers name and by legal description. This is a statewide collection with nearly 550,000 land sales fro 54740 square miles.

IRAD Land hldings for Mason County include Swamp Land records 1852 to 1897

Land records that include Bond County at $:

  • "Illinois Public Land Purchase Records" This record extract includes over 538,000 land sales from the 19th Century. Each entry includes the purchaser's name, purchase date, number of acres, price per acre, and in some cases the purchaser's sex and residence.
  • "U.S. General Land Office Records, 1796 to 1907:" Records of Illinois are among the 13 states included in this set. It includes images of the land patents which contain the information necessary for ordering the complete case files from the National Archives. This appears to be the same information that is online at the Federal Land Office site
  • Sheldon, Theodore. Land registration in Illinois. Chicago: Callaghan Co., 1901. Digital book. Expains the laws regarding land and the land systems used in Illinois. Includes court cases involving land issues. In addition to being on Ancestry, this book is available online at no cost at Internet Archives and Google Books.



  • Civil War
    Civil War service men from Mason 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 Mason County.
- 38th Regiment, Illinois Infantry, Company G.
- 51st Regiment, Illinois Infantry, Company F.
- 53rd Regiment, Illinois Infantry, Company E.
- 85th Regiment, Illinois Infantry, Companies A, B, C, D, and K.


Newspapers and Obituaries

Probate Records


County Courthouse

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

Family History Library

Illinois Regional Archives Depository (IRAD)

Public Libraries

Social Groups Online



Vital Records



Available through $:

  • Mason County marriages in "Illinois Marriages 1851 to 1900." The source of this collection is films in the Family History Library's collection


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), 196. (FHL Collection Ref Book 973 D27e 2002). WorldCat entry.


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