_Éleuthère Irénée DU PONT _+ | (1771 - 1834) m 1791 _Alexis Irénée DU PONT _| | (1816 - 1857) m 1836 | | |_Sophie Madeline DALMAS _______ | (1775 - 1828) m 1791 _Francis Gurney DU PONT _| | | | | _______________________________ | | | | |_Joanna Maria SMITH ______| | (1815 - 1876) m 1836 | | |_______________________________ | | |--Sophie Irene DU PONT | (1877 - 1961) | _______________________________ | | | __________________________| | | | | | |_______________________________ | | |_________________________| | | _______________________________ | | |__________________________| | |_______________________________