Have you checked out the Martin and Bartlett Powell also in Union Par., LA 1840? They are also from Edgefield Co., SC (Nathaniel Powell family.) Also, the James M. Powell in 1840 Union Par., LA was married 1822 in Perry Co., AL, your Reason Powell shows up in Perry Co., AL 1850. James M. Powell b. 27 Feb 1791 Bertie Co., NC.