someone who is an occasional visitor to our session sings the Portugese song, which has a similar tune to the Ballad of Bethnal Green, I think. I'll try & get the words - it might be a while though.The only place I have been able to find on the Web is the one listed above, Graham Grainger's site. He obviously has the book, Strictly For Grownups, so if you emailed him (his email address is on the site) he might be able to help you.
SueH