I am trying to find the following towns: Nedderdorf, Mazelsdorf, Medderdorf, Pruenst, or Kensting, Germany. My great-great grandparents came from Bavaria, Germany and died in Carroll, Iowa. They left from Bremen, Germany and arrived in the US on March 24, 1883. This is about as far back as I can trace them as I can't find any information about their hometowns mentioned above in their obituaries. Any help would be greatly appreciated!