Thanks M, good info. So it's a pared-down version of the Child ballad, essentially.
As to the Gentlemen Prefer Blondes; I can just hear Marilyn saying the line, Famous for sitting on a rock in Germany, in that perfectly innocent enthusiastic way she had.. Surely that line was used in the film? :)
Would still like to know, anyone else recognise this variant, and where it was found? I'm guessing Appalachian..