Casper Joseph Nunn and Catherine Kurtz

I've been away from genealogy research for a while - writing mysteries does that. So, I was delighted to see all the new information on Family Search relating to my German great-grandparents, Casper Joseph Nunn and Catherine (Kurtz) Nunn. New information that I didn't have is that Casper Joseph (he went by Joseph) was listed as a farmer on the ship manifest. When he arrived in New York City on 7 August 1882 he found work as a harnessmaker. Other new information was more exact information as to where he originated in Germany - Heidenfeld, Rothlein, Schweinfurt, Bavaria, which is in Lower Franconia. I also learned that he is buried in St. Michael's Cemetery, plus his death cert number. My great-grandmother, Catherine Kurtz, born in Lauf, Baden, Germany, arrived in New York City 12 May 1881. With her was Dorthea Kurtz. I don't know if this is her sister or cousin. Further research has to be done to learn more about Catherine and Dorthea. I will attend the Manatee Genealogical Society's German SIG this Wednesday to get more hints on how to trace back these family members.