Okay, different guy.
Jack Pearson played with Betts when he split from the Allmans for a while, then filled in for Betts with the Allmans in the ‘90s:
https://www.youtube.com/watch?v=5vACV9ttnaU
I used to watch him and his band The Nationals destroy the world at a little dive bar in Murfreesboro in the late ‘90s:
https://www.youtube.com/watch?v=KCBcKq9qPMs
(video was posted in 2007 but looks like an earlier show)
Which dive bar in the Boro?
Main Street?
Little Brown Jug?
There was the Boro too on Greenland
My wife’s from there and my folks moved there in the late 70s when I was at Ole Miss
I know a few folks there