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Perkins Research:
1850 Pennsylvania Census:
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ALLEGHENY
COUNTY |
*1800
Armstrong Co., PA created from part of Allegheny Co, PA
*1800-1803 Beaver Co., PA created from part of Allegheny Co., & Washington
Co., PA
*1800-1803
Butler Co., PA created from part of Allegheny Co., PA
*1800 Crawford Co., PA created from part of Allegheny Co., PA
*1800 Erie Co., PA created from part of
Allegheny Co., PA
*1800 Mercer Co., PA created from part of Allegheny Co, PA
*1800 Venango Co., PA created from part of Allegheny Co, PA
*1800 Warren Co., PA created from part of Allegheny Co., PA
*1788 Allegheny Co., PA created from parts of Westmoreland Co., PA and
Washington Co., PA |
BUCKS COUNTY |
*1812 Lehigh Co., PA created
from part of Northampton CO., PA
*1752 Northampton Co., PA created from parts of Bucks Co., PA
*1682 One of the three original counties created in Pennsylvania |
BUTLER COUNTY |
*1800 Butler Co., PA created
from part of Allegheny Co., PA |
BLAIR COUNTY |
*1846 Blair Co., PA created from part of
Bedford Co., PA and Huntingdon Co., PA |
BRADFORD COUNTY |
*1831
Lycoming Co., PA created from part of Bradford Co., PA
*1812 Ontario Co., PA renamed Bradford Co., PA
*1811 Luzerne Co., PA recovered land from Ontario Co., PA
*1810 Ontario Co., PA. created from parts of Lycoming Co., PA and Luzerne
Co., PA |
CHESTER COUNTY
|
*1789
Delaware Co., PA created from part of Chester Co., PA
*1729 Lancaster Co., PA created from parts of Chester Co., PA
*1682 Chester Co., PA is one of the three original counties created in
Pennsylvania |
COLUMBIA COUNTY |
*1853 Columbia
Co., PA recovered land from Montour Co., PA
*1850 Montour Co., PA created from part of Columbia Co., PA
*1818 Schuylkill Co., PA created from part of Columbia Co., PA
*1816 Columbia Co., PA recovered land from Northumberland Co., PA
*1815 Northumberland Co., PA created from part of Columbia Co., PA
*1815 Luzerne Co., PA created from part of Columbia Co., PA
*1813 Columbia Co., PA created from part of Northumberland Co., PA |
CRAWFORD COUNTY |
*1854
Crawford Co., lost land to Mercer Co., PA
*1822 Crawford Co., PA recovered land from Venango Co., PA
*1808 Crawford Co., PA recovered land from Mercer Co., PA
*1800 Crawford Co., PA created from part of Allegheny Co., ; Erie Co., ;
Mercer Co., ; Venango Co., ; and Warren Co., PA |
DAUPHIN COUNTY |
*1813 Lebanon Co., PA created from part of
Dauphin Co., PA
*1785 Dauphin Co., PA created from part of Lancaster Co., PA |
DELAWARE COUNTY |
*1789 Delaware Co., PA created from Chester
Co., PA |
ERIE COUNTY |
*1803 Erie Co., PA was fully organized and
detached from Crawford Co., PA
*1800 Erie Co., PA created from part of Allegheny Co., PA and attached to
Crawford Co., PA |
FAYETTE COUNTY |
*1783-1784
Fayette Co., PA created from part of Westmoreland Co., PA |
FRANKLIN COUNTY |
*1838 Franklin Co., PA lost land to Adams
Co., PA
*1798 Franklin Co., PA gained land from Bedford Co., PA
*1784 Franklin Co., created from part of Cumberland Co., PA |
GREENE COUNTY |
*1796
Greene Co., PA created from part of Washington Co., PA |
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