Indeed, you could also include Jerry Donahue a Pom with his wonderful pedal steel bends on the Tele and John Jorgensen who started out as a Disneyland street minstrel playing a multitude of instruments, made his name with the Desert Rose Band playing West Coast Country rock and now playing gypsy jazz al la Django
Music knows no boundaries and even the geographic style roots are disappearing as live venues become fewer and everyone has access to the likes of YouTube