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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
Clay County is a county located in the U.S. state of Minnesota. As of the 2010 census, the population was 58,999. Its name is in honor of American statesman Henry Clay, member of the United States Senate from Kentucky and United States Secretary of State in the 19th century. Its county seat is Moorhead. It was originally called Breckenridge County, but changed to its current name in 1862.
Clay County is part of the Fargo-Moorhead, ND-MN Metropolitan Statistical Area.
Timeline
| Date | Event | Source
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| 1858 | County formed | Source:Red Book: American State, County, and Town Sources
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| 1860 | First census | Source:Population of States and Counties of the United States: 1790-1990
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| 1864 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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| 1870 | No significant boundary changes after this year | Source:Population of States and Counties of the United States: 1790-1990
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| 1872 | Birth records recorded | Source:Red Book: American State, County, and Town Sources
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| 1872 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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| 1872 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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| 1872 | Probate 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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| 1860 | 79
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| 1870 | 92
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| 1880 | 5,887
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| 1890 | 11,517
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| 1900 | 17,942
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| 1910 | 19,640
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| 1920 | 21,780
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| 1930 | 23,120
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| 1940 | 25,337
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| 1950 | 30,363
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| 1960 | 39,080
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| 1970 | 46,585
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| 1980 | 49,327
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| 1990 | 50,422
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Research Tips
External links
www.rootsweb.com/~mnclay/
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