The R. J. Nevill that you found on the Gibson Co TN census is Reuben Jordan Nevil/Nevill. He married Frances Collier in Madison Co AL in 1825. According to other researchers his father was to have been a Thomas Nevil of Amherst Co VA. Thomas died in Rutherford Co TN. Still working on proving the Reuben/Thomas link. I'm not related to the Nevil's but doing a little research for a friend of mine. Part of this family later moved to Texas.