_Alfred Victor DU PONT _____+ | (1798 - 1856) _Antoine Biderman DU PONT _| | (1837 - 1923) | | |_Margaret Elizabeth LAMMOT _ | (1807 - 1898) _Evan Morgan DU PONT _| | (1872 - 1941) | | | ____________________________ | | | | |_Ellen Susan COLEMAN ______| | (1838 - 1876) | | |____________________________ | | |--William Bayard DU PONT | (1914 - 1945) | ____________________________ | | | ___________________________| | | | | | |____________________________ | | |_Helen Augusta QUINN _| (1876 - 1917) | | ____________________________ | | |___________________________| | |____________________________