_Alfred Victor DU PONT _____+ | (1798 - 1856) _Éleuthère Irénée DU PONT _| | (1829 - 1877) | | |_Margaret Elizabeth LAMMOT _ | (1807 - 1898) _Alfred Irénée DU PONT _| | (1864 - 1935) | | | ____________________________ | | | | |_Charlotte S HENDERSON ________| | (1835 - 1877) | | |____________________________ | | |--Alfred Irenee DU PONT | (1914 - 1914) | ____________________________ | | | _______________________________| | | | | | |____________________________ | | |_Mary Alicia BRADFORD ____| (1875 - 1920) | | ____________________________ | | |_______________________________| | |____________________________