Dear Nancy,
I don't have either person listed on my section of the tree, but given that they are in Endingen, I have to believe that they are cousins somehow. I know that Jews were restricted to certain areas, even if those areas weren't what we have come to associate with ghettos. There was, I believe, one cemetary in Endingen or Oberendingen where most of the Jews were buried.
I just found this post (3 years late!) on the web:
http://www.noevalleyvoice.com/1998/April/letters.htmlI'm going to write to them and see what kind of information we might be able to obtain.
Nancy