_Alfred Victor DU PONT _____+ | (1798 - 1856) _Antoine Biderman DU PONT _| | (1837 - 1923) | | |_Margaret Elizabeth LAMMOT _ | (1807 - 1898) _Antoine Biderman DU PONT II_| | (1865 - 1919) m 1892 | | | ____________________________ | | | | |_Ellen Susan COLEMAN ______| | (1838 - 1876) | | |____________________________ | | |--Ethel Biderman DU PONT | (1896 - 1980) | ____________________________ | | | ___________________________| | | | | | |____________________________ | | |_Mary Ethel CLARK ___________| (1870 - 1909) m 1892 | | ____________________________ | | |___________________________| | |____________________________