????
                     Manthei, Fred (Fritz) (b:1851)(d:1910)
                    |          ????
           Manthei, William Albert (b:1891)(d:1978)
          |         |          ????
          |          Schwekowsky, Johanna (b:1859-1860)(d:1929)
          |                    ????
 Manthie, Eugene Kenneth (b:1941)(d:)
          |          ????
           Schaefer, Louisa J (b:1895-1896)(d:)
                     ????