Bob Hall:

Veteran blues pianist with endless album credits, having played with most people of note on the U.K. blues scene through the years.

Just a few examples: Savoy Brown (first four albums), John Dummer Blues Band, Groundhogs, Brunning Hall Sunflower Blues Band, Dave Kelly, De Luxe Blues Band...

Link:
Bob Hall - Boogie Woogie Pianist, being his own excellent website telling his story.