Dave Alvin has been around since the 80's. He played with the Blasters, X, solo and with his band The Guilty Ones. I saw him at Skipper's Smokehouse almost 2 years ago, and again last week in Atlanta. Check him out on Youtube, including his songs King of California, Fourth of July, his cover of Highway 61 Revisited, and others. Here's one of his originals: Abilene
You forgot The Knitters, a country band with members of X, and the best supergroup ever--The Pleasure Barons with Mojo Nixon and Country **** Montana.