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- source: Getty Thesaurus of Geographic Names
- source: Family History Library Catalog
- the text in this section is copied from an article in Wikipedia
Mason County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 14,666. Its county seat is Havana. The county is named in honor of George Mason, a member of the Virginia legislature who campaigned for the adoption of the United States Bill of Rights.
Timeline
Date | Event | Source
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1827 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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1841 | County formed | Source:Red Book: American State, County, and Town Sources
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1841 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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1841 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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1841 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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1850 | First census | Source:Population of States and Counties of the United States: 1790-1990
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1850 | No significant boundary changes after this year | Source:Population of States and Counties of the United States: 1790-1990
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1878 | Birth records recorded | Source:Red Book: American State, County, and Town Sources
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Population History
- source: Source:Population of States and Counties of the United States: 1790-1990
Census Year | Population
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1850 | 5,921
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1860 | 10,931
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1870 | 16,184
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1880 | 16,242
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1890 | 16,067
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1900 | 17,491
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1910 | 17,377
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1920 | 16,634
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1930 | 15,115
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1940 | 15,358
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1950 | 15,326
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1960 | 15,193
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1970 | 16,161
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1980 | 19,492
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1990 | 16,269
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Cemeteries
Cemeteries of Mason County, Illinois, United States
Research Tips
External links
- Outstanding guide to Mason County family history and genealogy resources (FamilySearch Research Wiki). Birth, marriage, and death records, censuses, wills, deeds, county histories, cemeteries, churches, naturalizations, newspapers, libraries, and genealogical societies.
- www.outfitters.com/~ilmasonch/
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