Lammot du Pont II

On March 15, 1926, Lammot du Pont was elected President of E.I. du Pont de Nemours Co., succeeding elder brother Irénée du Pont, who was elected Chairman of the Board of Directors.^[6]

Lammot was president until May 20, 1940, when he was succeeded by Walter S. Carpenter Jr. At the same time, Lammot replaced another brother, Pierre S. du Pont, as chairman of the board.^[7]

Du Pont was married four times. His first marriage was on January 27, 1903, to Natalie Driver Wilson (1877–1918),^[8] at St. John's P. E. Church and officiated by Bishop Coleman.^[9] Natalie was a sister of Rodgers Wilson. Together, Lammot and Natalie were the parents of:

• Natalie Wilson du Pont (1904-1975), who married George P. Edmonds. They had two children, George, Jr. and Andrew.^[10]
• Mary Belin du Pont
• Esther Driver du Pont (1908–1984), who married Campbell Weir (1901–1982) in 1928.^[11] They divorced and she remarried to Sir John Rupert Hunt Thouron (1907–2007) in 1953.^[12]
• Lammot du Pont III (1909–1964), who married Mary Elizabeth Wooten (1916–1996) in 1950.^[13]
• Pierre Samuel du Pont III
• Edith du Pont
• Alexandrine du Pont (1915–1953), who married Howard A. Perkins (1906–1947) in 1937.
• Reynolds du Pont, a Republican state senator and president pro tem in Delaware who married Katherine Lewars.^[14]

His second marriage was to Caroline H. Stollenwerck in 1930.^[15] His third marriage was to Ruth Foster (1911–1958) in 1931.

In 1933, he married for the fourth and final time to Margaret A. Flett (d. 1968), the daughter of David H. Flett of Racine, Wisconsin.^[16] Together, they were the parents of one child:^[16]

• David Flett du Pont (1934–1955), who died at age twenty-one as a result of an automobile accident at Fishers Island, New York on September 2, 1955.^[17]

Du Pont died on July 24, 1952, in New London, Connecticut of heart disease at age 71.^[1]

Through his son Reynolds, he was the grandfather of Natalie du Pont and Katharine du Pont, who married Peter Durant Sanger. After Sanger's death, she married Lewis Polk Rutherfurd, who was the widower of Janet Auchincloss Rutherfurd (half-sister of Jackie Kennedy and Lee Radziwill).^[14]