I am looking for information on the family of Albert Heiselbetz and Dora Gruever/Gruber. They were the parents of Katherine Heiselbetz born Mar 14 1863. My brickwall is I do not know where in Germany this family resided. I would also like to know what the name Heiselbetz means and how common it is in Germany as it seems to be a unique name. Any info or leads would be appreciated.