Just had our 55th Derber Reunion in Van Dyne, Wisconsin. We had over 150 descendants. Represented were the Fourth through Seventh Generations of Johann Carl Derber and Johanna Elenora Christiana Kusche. They were from Breslau, Silesia, Germany(Prussia). Children were Auguste, Marie, Gustave Reinhold, Karl Herman, Johann Karl, Pauline Alma, John Edward, Olga V.A., Robert O.W., Metha and Alice.Some of the descendants are still residing in Wisconsin area. If anyone is looking for this name in one of their ancestors please email me.