Jean, As far as I can tell there has always been a Washington Co., TN/NC. Hope this helps you. Here is what I have found for Washington Co., and that area. 1776 - was District of Washington and was then NC. 1777 - Washington County took up all of what later became TN. 1779 - Sullivan County formed from Washington 1783 - Greene County from Washington; Davidson County (middle TN) then the rest of TN was considered Indian lands. 1784 - Greene, Washington and Sullivan Counties formed the State of Franklin. 1785 - Caswell, Sevier, Spencer and Wayne Counties created by State of Franklin. 1787 - Hawkins County was formed from Sullivan County; Sumner County from Davidson County in middle TN. 1788 - Caswell, Sevier, Spencer and Wayne Counties of State of Frranklin abolished; Tennessee from Davidson Co., (middle TN) 1790 - NC cedes western region, organized as Territory of South of the Ohio River. 1792 - Jefferson County from Greene and Hawkins?; Knox County from Greene & Hawkins. 1794 - Sevier County from Jefferson County 1795 - Blount County from Knox County 1796 - Tennessee admitted as State and other counties were formed. Wanda