????
                     Groth, August (b:1850)(d:1917)
                    |          ????
           Groth, Herman B (b:1882)(d:1964)
          |         |          ????
          |          Rutzen, Emilie (b:1852)(d:1930)
          |                    ????
 Groth, Harry (b:1933)(d:2011)
          |                    ????
          |          Manthei, Fred (Fritz) (b:1851)(d:1910)
          |         |          ????
           Manthei, Renata Natula (b:1893)(d:1943)
                    |          ????
                     Schwekowsky, Johanna (b:1859-1860)(d:1929)
                               ????