dougie, who was clive thomas and what did he do?

There was this certain FA Cup Semi Final at Maine Road, between Everton and the Red shite. Clive Thomas was the ref who disallowed a last minute goal by Everton that would have put the blues thru 3-2 to the Cup Final. He said it was offside, but TV showed what everybody else could see.. It was well on side.
 
he also blew the whistle for full time in the 74 world cup just as Brazil scored-i think they went out cos he disallowed the goal!