????
                               Dorau, Christian (b:1802-1836)(d:)
                              |          ????
                     Dorau, Christlieb Erdman (b:1852)(d:1912)
                    |         |          ????
                    |          (unknown), (unknown) (b:)(d:)
                    |                    ????
           Dorau, Heinrich Gustav (Henry) (b:1889)(d:1976)
          |         |          ????
          |          Strassburg, Amelia Frederica (b:1853)(d:1932)
          |                    ????
 Dorau, Conrad H (b:1917)(d:2009)
          |                    ????
          |          Hill, Joseph (b:)(d:)
          |         |          ????
           Hill, Ruby Emma (b:1895)(d:1968)
                    |          ????
                     Van De Mark, Nellie (b:)(d:)
                               ????