I have also seen the birthplace of this Kellenber shown as
"Greutz-Steinach,Upper, , Pfalz, Bayern" (IGI).

Does this change your thought?

Also, in my research I have seen references to both "Upper Palatinate" and "Lower Palatinate" and have even seen "Palatinate" called a country.

Yes, I have seen that most Kellenbergers were elsewhere - this just makes me more eager to find out where this place is.

Rick.