????
                     Ortwein, Robert (b:)(d:)
                    |          ????
           Ortwein, David James (b:1942)(d:2010)
          |         |          ????
          |          DeMott, Louise (b:1910)(d:1979)
          |                    ????
 Ortwein, David Scott (b:1963)(alive: 2020)
          |          ????
           Bass, Peggy Beth (b:)(d:)
                     ????