John Mayall’s band was a revolving door of famous British musicians; but even more remarkably, bandmembers who left John Mayall & the Bluesbreakers often helped form other rock bands.  Examples include Mick Taylor, the first new musician to join the Rolling Stones since their classic line-up was formed; Jon Mark and Johnny Almond, who later formed Mark-Almond, among other musical accomplishments (not to be confused with Marc Almond of Soft Cell); top English drummer Aynsley Dunbar; and Andy Fraser, a founding member of Free. 

(May 2014)