Here is a photo taken from my middle school yearbook of the real Mr. good clean fun and Soapy the monkey. Soapy has his mouth open so is sort of hard to see.
The man’s real name is Reggie and his monkey is named Self.
Unlike Mr. good clean fun, Reggie was pretty good if I remember correctly. And I liked his monkey puppet so much that I got one for myself. And that monkey puppet is the one that appears as Soapy in the books.