I'm not sure how I missed this 4 years ago.

The song has been around for many years, and is an obvious and easy one to add verses to...or change a few words when you forget exactly what was heard.

I heard it in Kansas in the early 60s, with the 'standard' tobacco, fruitcake, cookies and backrub verses...and soon after learned the "Temperance Union" title. Then, from somewhere this verse popped up, and 'our' little group in Kansas almost always ended with it.

♫"When you meet a folksinger, you haven't much choice,
But to sit there and listen while they prove they have no voice.
But the most shocking thing to imagine by faaaaarrr....
Is a girl with a G string upon her guitar."♫