Brandon,
It's amazing that after 11 years people are still reading these post. I completed and published the Nichols history containing the Barrett families of this discussion in 2005. Our family (Nichols) connected with the Barretts during two generations. I have hoped that a Barrett history would be published someday containing the Barrett history of Cannon County, TN. Do you know if anyone has worked or is working toward that objective? You sound like a wonderful candidate!
Danny