I've never heard of D. Clinton Thompson but am familiar with Foster and Lloyd.
How very cool that you got to see Lucinda so early in her career.
I have the DVD of her first ACL performance with that band and it serves as an excellent informal tutorial for guitarists on how to tastefully back up a singer.
Forbert-- what a talent. Are you familiar with his "Young Guitar Days" cd?
It's a terrific collection of early previously unreleased material and well worth having.