That's fascinating Bob I would really like to know if you can find out who the original author was.
The version I know of was sung by a small group in a pub local to me here in Kent , England and they sang it to a different tune. I think I have a recording of there stuff somewehere I'll dig through the archives and see if I can find it. I have down loaded the Miditxt file as mentioned by Joe so as soon as I get a chance I'll post the words and the tune I know on the cafe site.
I'll also try the verses to Spanish Ladies.
Good to hear from you