????
           Tillage, Donald Francis (b:)(d:)
          |          ????
 Tillage, Jason (b:)(d:)
          |                              ????
          |                    Ortwein, Robert (b:)(d:)
          |                   |          ????
          |          Ortwein, David James (b:1942)(d:2010)
          |         |         |          ????
          |         |          DeMott, Louise (b:1910)(d:1979)
          |         |                    ????
           Ortwein, Deborah Jo (b:1960)(d:2009)
                    |          ????
                     Bass, Peggy Beth (b:)(d:)
                               ????