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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
Harrison County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 14,483, making it the fifth-least populous county in Ohio. Its county seat is Cadiz. The county is named for General William Henry Harrison, who was later President of the United States.
Timeline
Date | Event | Source
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1812 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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1813 | County formed | Source:Red Book: American State, County, and Town Sources
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1813 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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1813 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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1814 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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1820 | First census | Source:Population of States and Counties of the United States: 1790-1990
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1840 | No significant boundary changes after this year | Source:Population of States and Counties of the United States: 1790-1990
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1867 | 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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1820 | 14,345
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1830 | 20,916
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1840 | 20,099
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1850 | 20,157
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1860 | 19,110
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1870 | 18,682
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1880 | 20,456
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1890 | 20,830
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1900 | 20,486
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1910 | 19,076
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1920 | 19,625
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1930 | 18,844
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1940 | 20,313
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1950 | 19,054
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1960 | 17,995
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1970 | 17,013
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1980 | 18,152
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1990 | 16,085
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