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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
Henry County is a county located in the U.S. state of Iowa. It was named for General Henry Dodge, governor of Wisconsin Territory. The population was 20,145 in the 2010 census, a decline from 20,336 in the 2000 census.[1][2] The county seat is Mount Pleasant.
Timeline
| Date | Event | Source
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| 1836 | County formed | Source:Red Book: American State, County, and Town Sources
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| 1836 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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| 1837 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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| 1837 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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| 1837 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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| 1840 | 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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| 1880 | 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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| 1840 | 3,772
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| 1850 | 8,707
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| 1860 | 18,701
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| 1870 | 21,463
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| 1880 | 20,986
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| 1890 | 18,895
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| 1900 | 20,022
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| 1910 | 18,640
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| 1920 | 18,298
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| 1930 | 17,660
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| 1940 | 17,994
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| 1950 | 18,708
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| 1960 | 18,187
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| 1970 | 18,114
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| 1980 | 18,890
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| 1990 | 19,226
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Research Tips
External links
www.rootsweb.com/~iahenry/
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