Hey, Gene - I've always kinda thought "Hey Joe" should be a folk song, but I guess it doesn't fit into the category. It's fun to sing, although I've never gotten the lyrics straight.
Another should-be folk song that I've always liked but never quite gotten the lyrics straight goes:

And then along came Joe
Along came Joe
Slow walkin' Joe
Slow talkin' Joe
Along came lonely, lanky Joe

Oh, did you say that was "Along Came Jones"? Well, that's the Folk Process. While I'm thinking about it, there's one more song, not a Joe song, that oughta be a folk song - "Long Tall Texan." "Oh rah, Oh rah, is that your HAT?"

-Joe, who may have to go out and buy that Buntz CD-