Nope. It's Eric Clapton.
I'm pretty sure it's James Taylor too, although I don't remember what
Clapton looked like in those days.
http://jonimitchell.com/biography/bio.cfm?id=232
Okay, can somebody point to another picture of Clapton with that hair
and moustache style? Looks just like JT around the time of Mud Slide
Slim. Note also the long arms. JT is four inches taller than Clapton.
I'm still with YOU Matt!
Thanks---yeah, hard to believe it isn't James. Also I don't think
Clapton has as much nose as James.
http://meltingpot.fortunecity.com/guinea/489/EricClapton.htm
near the bottom of the page, left hand side, post cream
Thanks. Clapton looks a little chubby there, with fluffy hair, not much
like that string bean in the picture with Joni and Crosby. Yes, the
sideburns and mustache are similar---that's about it.
Here is one of James and Joni:
http://jonimitchell.com/biography/bio.cfm?id=233