Is Tommy horton related to johnny horton?

well I have heard it said, I have also heard his ex-claim he is not, I Have never heard Tommy say that, and Tom and I go back many years to Bob Hufstedler fish camp on Piccola road in Leesburg Florida where tommy used to do his R&R there and fish all day, I guess it is up to the reader to listen to Tommy sing, To make up their own minds.