No disrespect intended, AuldSoul, but this makes absolutely no sense.
I'm a newspaper reporter, and if I heard that, say for example, Neal Young regularly asked if there were any Mormons at his concert, and then made them leave, I would be all over that. That's a form of religious discrimination, which I think you'll find is illegal in this country. What if he'd told all the blacks in the audience to leave? Same principle. Any reporter or journalist who heard this at a concert would certainly have made an issue of it and written about it.
Also, your lists of comparisons between Denver and the JWs is meaningless. Poor, apolitical and the butt of jokes or not, the Witnesses have won more civil rights cases in US courts than probably any other group, and you likely know that.
The fact that these exact same stories are being told about Don Ho, Chris Duburg (sp?) and John Denver smacks of urban legend. The total lack of anything but third person hearsay is important. Let someone produce some concert footage, a tape or a newspaper or magazine article that mentions it in anything but urban myth terms.
Denver was supposedly doing this in the 60s and 70s, when civil rights was a huge issue. No matter how fringe JWs were, this would have been big news. Sorry, can't believe this. It would certainly have made the press if a well-known, liberal and well-liked entertainer was practicing religious discrimination at his concerts.
S4