The thread title immediately reminded me of a long ago radio program that featured Professor Somebody who was a pronunciation and dialect expert. He'd have members of his studio audience come up and speak set sentences and then tell them, with amazing accuracy, where they came from or had been raised.
My favorite test line was, "Merry Mary married hairy Harry."
When it came out "Mary Mary mary-ed hairy Hairy.", he'd immediately zero in on the greater Detroit area, and go on from there.
I loved that show as a kid, but apparently not to many other listeners did, not the adults who were supposed to be buyingthe products anyway, because it didn't last too long, except in my memory.
Mary Mack's father has particular significance for me because a couple of years ago my daughterremarried, to a man named Kevin MacLaughlin, known to his students as Mr. Mack. At the wedding reception, I snag them an updated version allowing or the fact that Kevin is fatherless and the plan was for mutual support:
Kevin Mack's mother making Kevin Mack marry me,
My mother's making me marry Kevin Mack.
I'll take care of my Kevin, and my Kevin will take care of me,
and we'll all make merry when I marry Kevin Mack!
It was a great success.