I am sorry, but the facts you give do not seem to indicate a connection between our Coulters. My John Coulter was John M. Coulter. It is true that he may have been born in Tenn., but there were Coulters in a number of counties in the early 1800's. You do not give a date for him, but, based on the other surnames you list, I do not think we care connected. You might check Blount and Bledsoe Counties in Tennessee for your John.