????
           Wroblewski, Robert (b:1969)(d:)
          |          ????
 Wroblewski, Caleb (b:1998)(d:)
          |                                        Treder, Paul (b:)(d:)
          |                              Treder, Carl Gustave (b:1911)(d:1991)
          |                             |          Demblon, Amanda (b:)(d:)
          |                    Treder, Richard Dale (b:1933)(alive: 2026)
          |                   |         |          Ostness, Odin Angell (b:1875)(d:1974) ==> Chart 2 [P 1]
          |                   |          Ostness, Lillian Lucille (b:1911)(d:1997)
          |                   |                    Cook, Susan May (Susie) (b:1875)(d:1961) ==> Chart 3 [P 2]
          |          Treder, Jeffrey Alan (b:1955)(alive: 2024)
          |         |         |          ????
          |         |          Schilling, LaVerne Ruby (b:1935)(d:)
          |         |                    ????
           Treder, Christy (b:1976)(d:)
                    |          ????
                     Powers, Karolene (b:)(d:)
                               ????

                               ????
                     Embretson, Ole (b:1798)(d:1879)
                    |          ????
           Olson, Olaus (b:1839)(d:)
          |         |          ????
          |          Hansdatter, Karen (b:1803)(d:1861)
          |                    ????
 Ostness, Odin Angell (b:1875)(d:1974)
          |          ????
           Olsdatter, Oline (b:1839)(d:1922)
                     ????