Dunoo who the musicians were but Goldwax used most of the studios in Memphis according to sleeve notes on the Goldwax story, Hi, Sam Philips, American and Lyn-Lou, also Fame. Presume they were any Memphis musician available to the particular studio at the time.
Dark End Of the Street one of my fave soul singles and one of the greatest ever IMO, up there with Sam Cook's A Change Is Gonna Come.