????
                               Grede, Johan (b:)(d:)
                              |          ????
                     Grede, Casper (b:1812)(d:1887)
                    |         |          ????
                    |          (unknown), Anna (b:)(d:)
                    |                    ????
           Grede, Conrad P (b:1837)(d:1914)
          |         |                    ????
          |         |          Stehl, Henry (b:)(d:)
          |         |         |          ????
          |          Stehl, Maria Elisabeth (b:1811)(d:1886)
          |                   |          ????
          |                    (unknown), Christine (b:)(d:)
          |                              ????
 Grede, John (b:1863)(d:1905)
          |                    ????
          |          Duma, John Georg (b:)(d:)
          |         |          ????
           Duma, Anna Maria (b:1835)(d:1908)
                    |          ????
                     (unknown), Josephina (b:)(d:)
                               ????