Great clip from the Glastonbury 1971. That drummer is Alan White and there's also David Lindley. The bassist is Lee Miles who played on his all recordings throughout the seventies.
I have all his studio albums and a live one called "Silver White Light" recorded at Isle Of Wight festival 1970. Mike Giles of King Crimson is the drummer.
Never thought about the Black Crowes connection before but you're right about it! They do sound like Reid's more rocky stuff.
My fav album is "River" followed by "Rogue Waves". The latter's cd version on BGO records is mastered too fast, it plays a semitone higher than the vinyl.
Cheap Trick does a great cover of Reid's "Speak Now Or Forever Hold Your Peace" on their first album and it's intro is a showcase for Tom Petersson.