This is correct. Especially when you dig down deep into the past, people did not really care for the right spelling. I can see this still today everytime I check in a hotel or whenever somebody has to write down my name. I am now living in Saarbrücken but my family comes from Winterkasten in the Odenwald area. There may be some relatives in Oberostern, Kainsbach, Gumpen and/or Fürth. But I do not know too much about them yet. I am just starting my research. My grandparents werde Adam and Therese (birthname Schabbach) Ehrhardt.