I am searching for the brothers and sisters to my husband's great grandfather William Frederick Quade, b1851 d 1925(?). He left Germany (from n of Berlin) brothers and sisters and parents, traveled to Ellis Island and there lost his family.We assume that they went on to their new life. We don't know where. He went on to live in Wisconsin for a while (inthe 1890's) where he had his family and then moved to South Dakota.He had 7 children, Emma, Paul, Annie, William, Edward, John and Ernstina.At one point, several years ago sonWilliam was approached bya person from Texas I believe, claiming to be a relative ( an uncle as the story goes). Anyone having info please let me know.