Alexis Irénée du Pont Jr.

Du Pont lived in Louisville for ten years before returning to his ancestral home in Wilmington, Delaware, in 1885. He moved to Brooklyn, New York, for three years to oversee his interests in the Brooklyn Street Railroad before returning to Wilmington. He then became a senior partner in the du Pont de Nemours Company and vice president of the Repauno Chemical Company, formed in 1880 to manufacture dynamite at a remote spot along the Delaware River in Gibbstown, New Jersey.^[2]

Following the death of his elder brother Eugène du Pont in 1902 and the takeover of the company by younger cousins, Alexis du Pont was offered the position of president of Repauno Chemical but declined due to failing kidney health. He died on November 26, 1904, at the age of 61 at his country home, Rencourt, outside Wilmington.^[2]

On February 5, 1867, du Pont married Margaretta Gilpin (1843–1868) of Wilmington. Left a widower a year later, he married Elizabeth Canby Bradford (1852–1925) of Wilmington on January 20, 1875. She was the daughter of U.S. district court judge Edward Green Bradford. While in Louisville, the couple had four children: Alice Eugenie du Pont Ortiz (1876–1940), Philip Francis du Pont (1878–1928), Elizabeth Bradford du Pont Bayard (1880–1975), and Eugene Eleuthère du Pont (1882–1966).^[2]