????
           Chamberlain, Robert George (b:1915)(d:1988)
          |          ????
 Chamberlain, Edith (b:1939)(alive: 2024)
          |                              ????
          |                    Markus, John Julius (b:1857)(d:1945)
          |                   |          ????
          |          Marcus, Victor Herbert (b:1886)(d:1970)
          |         |         |          ????
          |         |          Hulzbach, Bertha (b:1861)(d:1944)
          |         |                    ????
           Marcus, Edith (b:1917)(d:1986)
                    |          ????
                     Gibbons, Edith A (b:1888-1889)(d:1951)
                               ????