He was the son of Berry Parks Alexander and Nancy Jane Barton and was a gxx uncle of mine. He was a doctor in Henry County TN for many years. I think he spelled the middle name Linville, but I could be wrong.
It would be best to let his descendants provide information to you; however, if one doesn't answer this posting soon, send me an email, and I'll provide data, which will also explain the Barbee connection.
Let me know how it turns out even if someone else does provide the answer.