Butterfield. My head feels light thinking his name.
I am told I met Mike Bloomfield in the early 70s (likely late 1974 - there was a gig nearby I found on Google the other nearby gig was in 1970). Neighbor was a musician and was well connected (he was a bandmate of future Chicago bassist Jason Scheff). I'm not going full Falkie, I am not claiming I showed him how to fingerpick, out-played him or anything...
I remember jam sessions in his backyard, white strats everywhere. Don't remember who.