Dear Cousin Bonnie,
I, too, am a descendant of Peter Artz and his wife Anna Maria. Was she Schaeffer or Kessinger? Their son Peter Schaeffer Artz was married first to Anna Wunderlich and then to Barbara Clippinger. You are descended from Theodore, son of the first wife, and I am descended from Anna, daugher of the second wife!
In various family trees I have seen our ggg grandmother Anna Maria variously as Schaeffer and as Kissinger.
Peter Schaeffer Artz and his second wife had children: John, David, William, Edwin and Anna.
Thanks for your help.
Cousin Mark