This is an extract from the All Music Guide entry for personnel on J J Cale's album "Grasshopper":
J.J. Cale - Organ, Bass, Piano, Drums, Guitar (Electric), Vocals, Producer, Engineer, Slide Guitar, Gut String Guitar, Mixing
David Briggs - Keyboards, Piano (Electric)
Steve Gibson - Guitar, Guitar (Electric)
Gary Allen - Drums
Audie Ashworth - Producer, Engineer
Bill Boatman - Drums, Tambourine
Bill Boazman - Guitar
Harold Bradley - Guitar, Guitar (Electric)
Kenneth A. Buttrey - Drums
Chip Young - Engineer
Johnny Christopher - Guitar,

I understand Bill won't be appearing at JAGZ again until May but I may be in touch with him sooner as he's playing at a party for me later in the year. I'll keep you posted.

RtS