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New Hampshire County Formation years
1764 1769 1773 1778 1780 1781 1782 1787 1800 1805 1817 1822 1823 1824 1827
1828 1832 1840 1841 1849 1853 1868 1874              
New Hampshire Map Abbreviations
unorg. = unorganized
g. = gained
w. = with
fr. = from
atmt. = attachment
exch = exchanged
nca.= non county area
ch. = changed
Bel - Belknap
Car - Carroll
Che - Cheshire
Co - Coos
Gft - Grafton
Hi - Hillsborough
Me - Merrimack
Ro - Rockingham
St - Strafford
Su - Sullivan