I have added a graph of band membership that provides a timeline. It is just too complicated to state every incarnation of the band. I think this answers the issue, it certainly helped me understand what on earth was going on. Editors may object to its day glow colours and I am not aversed to its removal if it is felt to be too much. Even if it stays, the membership list should remain as otherwise there are no internal links to the persons not mentioned in the history.     