My great great grandparents were Johann "John" Henry Gradert B. 17 Feb 1847 married to Magdalene "Caroline" Margaretha Detlef B.07 Dec 1850. They immigrated to the US in 1882 from a town called Wandelwitz. I know nothing about where John was born but do know it was in a town that started with G. in Schleswig Holstein. I don't have any information as to when they married. They ended up living by Wakefield NE. If you can supply any information, I would be most happy to hear from you and share what I know.