colin allen , drum ( born colin eric allen , 9 may 1938 , bournemouth , dorset ; ex - zoot money 's big roll band and john mayall 's bluesbreakers , later performed with focus ) james dewar , bass ( born james dewer , 12 october 1942 glasgow ; died 16 may 2002 ; later performed and sang with robin trower 's band ) john mcginnis , keyboards the band 's first two album were recorded by the above line-up , with bell 's vocals '' reminiscent of janis joplin '' .