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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
Montgomery County is located in the southwestern portion of the U.S. state of Ohio. As of the 2020 census, the population was 537,309, making it the fifth-most populous county in Ohio. The county seat is Dayton. The county was named in honor of Richard Montgomery, an American Revolutionary War general killed in 1775 while attempting to capture Quebec City, Canada. Montgomery County is part of the Dayton, Ohio Metropolitan Statistical Area.
Timeline
| Date | Event | Source
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| 1803 | County formed | Source:Red Book: American State, County, and Town Sources
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| 1803 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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| 1803 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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| 1803 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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| 1805 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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| 1810 | First census | Source:Population of States and Counties of the United States: 1790-1990
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| 1810 | 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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| 1810 | 7,722
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| 1820 | 15,999
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| 1830 | 24,362
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| 1840 | 31,938
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| 1850 | 38,218
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| 1860 | 52,230
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| 1870 | 64,006
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| 1880 | 78,550
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| 1890 | 100,852
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| 1900 | 130,146
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| 1910 | 163,763
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| 1920 | 209,532
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| 1930 | 273,481
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| 1940 | 295,480
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| 1950 | 398,441
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| 1960 | 527,080
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| 1970 | 606,148
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| 1980 | 571,697
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| 1990 | 573,809
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Research Tips
External links
www.mcohio.org
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