In response to Smudge Smith's guestbook post below:
Scott Yangtse replaced Bobby Woodman on drums with CHAS MCDEVITT & SHIRLEY DOUGLAS in 1959.
Scott Yangtse was a young upstart with shades, who liked to pretend he was a junkie. He only lasted one week - and that was touch and go. The piano player Roy Powell threatened to punch his head in if he didn't stop behaving like some spoilt brat... and he took to his heels (vanished). Yangtse was replaced on drums by Tommy Brown. Woodman and Brown were both noteworthy drummers in musician's circles in 1960's British music industry (Woodman was involved in the group that would become Deep Purple; Brown did a lot of work alongside Mick Jones before Jones broke through with Foreigner), so Yangtse can say that he both replaced and was replaced by notable drummers.
Shirley Douglas is dead now, but Chas McDevitt is still around, perhaps he can tell you a bit more about Yangtse, although considering that Yangtse was only with him for a week, and that was 60 years ago, there's probably not a lot more he can add to the above.
If the webmaster would pass along my email address to Smudge, I'd like to correspond with him. I'll also tell him where I got the above information.
Just to add something about Nick Simper, I think Simper is the best bassist Deep Purple EVER had, and for the R&R Hall of Fame to arbitrarily exclude him from induction is absolutely inexcusable! Simper and Doogie White toured Brazil not too long ago -- wish he'd do something like that for the USA!