shadorne, I too consider Bill Gibson a real good drummer, very tasty. And The News’ original bassist Mario Cipollina is the younger brother of Quicksilver Messenger Service guitarist John Cipollina, one of the best San Francisco area guitarists of the era.
Brian, Huey can be heard blowing harp on the first Elvis Costello album---My Aim Is True, at the time of it’s recording a member of Clover. Are you located in the Bay Area? If so, you might want to check out Gary Smith of San Jose. He studied with Charlie Musselwhite, and is a VERY good harp player. I was in a band with Gary in 1969-70, not long after he switched from drums to harp.