Have swapped an email or two with the collectors over here in Japan, as they know their Southern Soul...and maybe we're marching now towards a definitive answer...they say that:
- it was recorded in Memphis, not Texas or Detroit
- the Hester is Dorothy Hester, not Tony Hester
They also clarified that Dorothy Hester was more likely than John Hester, as she also wrote (or at least was credited as writing!) Percy Milem's Goldwax Memphis classic, 'Crying Baby Baby Baby'.
So, it is now looking more than likely that it was written, produced and recorded in Memphis, and then released on a Texas based label...nothing to do with Detroit. One other thing for certain is that 'Grab Your Clothes' is a great, great track!
As for who Minnie Epperson is...that one the jury is still out on...but here's a thought...there was one other famous female vocalist out of Memphis, the one and only 'Memphis Minnie'! Naturally Minnie Epperson was not her, but, maybe her fame was enough for Ms.Epperson to select Minnie as a stage name (if it wasn't her given name), if Ms.Epperson was also out of Memphis!?!