????
           Campbell, Frank X (b:1946)(d:)
          |          ????
 Campbell, Brendan F (b:1982)(alive: 2025)
          |                              ????
          |                    Callahan, John Fielding (b:1889)(d:1959)
          |                   |          ????
          |          Callahan, LeRoy Frank (Roy) (b:1925)(d:2012)
          |         |         |                    Dorau, Christian (b:1802-1836)(d:)
          |         |         |          Dorau, Albert Frederick (b:1861)(d:1951)
          |         |         |         |          (unknown), (unknown) (b:)(d:)
          |         |          Dorau, Emma Bertha (b:1894)(d:1988)
          |         |                   |          Heyer, August (b:1820-1821)(d:)
          |         |                    Heuer, Paulina (b:1864)(d:1907)
          |         |                              Tesker, Henryeta (b:1818-1819)(d:)
           Callahan, Patricia Ann (b:1949)(d:)
                    |          ????
                     Fox, Lois Marie (b:1927)(d:2006)
                               ????