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1. Historical United States County Boundaries, 1820

Polygon Stanford University Restricted content
1820. Earle, Carville, Heppen, John, Otterstrom, Samuel, Cao, Changyong, and Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology. This polygon shapefile contains county boundaries for the United States in 1820. Attributes include county and state names as well as FIPS identifi... Geoscience Publications.

2. Historical United States County Boundaries, 1830

Polygon Stanford University Restricted content
1830. Earle, Carville, Heppen, John, Otterstrom, Samuel, Cao, Changyong, and Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology. This polygon shapefile contains county boundaries for the United States in 1830. Attributes include county and state names as well as FIPS identifi... Geoscience Publications.

3. New York, 1831 (Raster Image)

Raster Harvard University Public content
1831. Harvard Map Collection, Harvard College Library, Pierce, Justin., and Babcock, Sidney, 1797?-1884. This layer is a georeferenced raster image of the historic paper map entitled: A reference & distance map of the state of New York. It was publishe... Harvard Map Collection, Harvard College Library.

4. Rhode Island, 1832 (Raster Image)

Raster Harvard University Public content
1832. Harvard Map Collection, Harvard College Library and Stevens, James, civil engineer. This layer is a georeferenced raster image of the historic paper map entitled: A topographical map of the state of Rhode Island and Providence plan... Harvard Map Collection, Harvard College Library.

5. Historic County Boundaries and Total Population, United States, 1820

Polygon Harvard University Public content
1820. University of Minnesota. Minnesota Population Center. This boundary file contains historic county boundaries for which the U.S. Census Bureau tabulated data and was produced by the Minnesota Population... Minnesota Population Center.

6. Historic County Boundaries and Total Population, United States, 1830

Polygon Harvard University Public content
1830. University of Minnesota. Minnesota Population Center. This boundary file contains historic county boundaries for which the U.S. Census Bureau tabulated data and was produced by the Minnesota Population... Minnesota Population Center.

7. Historic County Boundaries and Total Population, United States, 1830

Polygon Harvard University Public content
1830. University of Minnesota. Minnesota Population Center. This boundary file contains historic county boundaries for which the U.S. Census Bureau tabulated data and was produced by the Minnesota Population... Minnesota Population Center.

8. Historic County Boundaries and Total Population, United States, 1830

Polygon Harvard University Public content
1830. University of Minnesota. Minnesota Population Center. This boundary file contains historic county boundaries for which the U.S. Census Bureau tabulated data and was produced by the Minnesota Population... Minnesota Population Center.

9. Historic County Boundaries and Total Population, United States, 1830

Polygon Harvard University Public content
1830. University of Minnesota. Minnesota Population Center. This boundary file contains historic county boundaries for which the U.S. Census Bureau tabulated data and was produced by the Minnesota Population... Minnesota Population Center.

10. Historic County Boundaries and Total Population, United States, 1830

Polygon Harvard University Public content
1830. University of Minnesota. Minnesota Population Center. This boundary file contains historic county boundaries for which the U.S. Census Bureau tabulated data and was produced by the Minnesota Population... Minnesota Population Center.

11. Historic County Boundaries and Total Population, United States, 1830

Polygon Harvard University Public content
1830. University of Minnesota. Minnesota Population Center. This boundary file contains historic county boundaries for which the U.S. Census Bureau tabulated data and was produced by the Minnesota Population... Minnesota Population Center.

12. Historic County Boundaries and Total Population, United States, 1830

Polygon Harvard University Public content
1830. University of Minnesota. Minnesota Population Center. This boundary file contains historic county boundaries for which the U.S. Census Bureau tabulated data and was produced by the Minnesota Population... Minnesota Population Center.

14. Ancient Parishes of England and Wales, 1831

Polygon Stanford University Restricted content
1831. Southall, Humphrey, Aucott, Paula, Bennett, Chris, and University of Portsmouth. The system of Ancient Parishes was not defined by central government, but grew up over the centuries starting in Saxon times. By origin it was an e... University of Portsmouth.

15. England and Wales ancient parishes, 1831

Polygon Princeton University Restricted content
1831. GBHGIS, University of Portsmouth, Research Project. The system of Ancient Parishes was not defined by central government, but grew up over the centuries starting in Saxon times. By origin it was an e...