I think that may have been a little before my time. When I got to Atlanta, I'm pretty sure that KEH had already moved out to Marietta. I do remember E-6, although I didn't use them--as I said, I did most of my slide processing myself, but when I did need it back pretty quickly I usually went to (the also late and lamented) Moakler, who also did excellent work.
Man, those were indeed the good ol' days--and sounds like you got to enjoy them thoroughly, too!