Tom Peron/Bud Spangler Quartet–Interplay

Hi, I recently received this disc as a gift with no paper work. The playing and music is really excellent, straight ahead jazz.Well worth a listen. I have been able to find out that Tom Peron is the trumpet player and Bud Spangler is the drummer but can't find who the really terrific players on piano and bass are.Amazon has nothing and AMG has limited bio. info. on Peron. If anyone out there can fill me in I would like to know. If others interested in this type of music run across this disc, by all means give it a listen!!
Trumpeter Tom Peron
drummer Bud Spangler
pianist Jessica Williams
bassist John Wiitala

from AMG site; review by: Scott Yanow