????
           Zastrow, William Otto August (b:1876)(d:1942)
          |          ????
 Zastrow, Leonard Ernst (b:1895)(d:)
          |                              ????
          |                    Grosnick, Michael Frederick (b:1812)(d:1900)
          |                   |          ????
          |          Grosnick, Charles F (b:1848)(d:1928)
          |         |         |          ????
          |         |          Affeld, Fredericke H D (b:1821)(d:1906)
          |         |                    ????
           Grosnick, Bertha C A (b:1876)(d:1919)
                    |          ????
                     Ninman, Bertha W (Minna/Minnie) (b:1844)(d:1933)
                               ????