Counties in NY where Hendershots were from 1790-1850

It can be helpful to genealogy research to know when counties were formed and from which other counties they were formed.

Allegany, 1806 from Genesee
Cayuga, 1779 from Onondaga
Chemung, 1836 from Tioga
Delaware, 1797 from Ulster & Otsego
Erie 1821, from Niagara
Livingston, 1821 from Genesee & Ontario
Monroe, 1821 from Genesee & Ontario
Ontario, 1789 from Montgomery
Orange, 1683- Original County
Steuben, 1798 from Ontario
Tompkins, 1817 from Cayuga & Seneca
Tioga, 1791 from Montgomery
New York, 1683- Original Co