Thanks for the information on historical topography. It was helpful. What I still have trouble understanding is the meaning of "Georgetown" for an ancestor who was born 1788 in Georgetown, Washington Co, TN. Clearly it was not TN, it may have been Washington Co--but not as we know it today, but ???Georgetown??? I doubt that it is the current Georgetown. Was there a settlement in the vast Washington Co somewhere named Georgetown and if so, what area today would roughly correspond to it? Would you have any knowledge of this? I would appreciate any information--even a theory on this. Jean Bails