Éleuthère, encouraged by President Thomas Jefferson (1743–1826 served 1801–09), founded E. In 1800 Éleuthère Irénée du Pont de Nemours fled to the United States from revolutionary France along with his father and other family members. The du Ponts feared the New Deal programs would be too restrictive toward business and industry. Roosevelt (1882–1945 served 1933–45 see entry) introduced new social and economic programs designed to help the country recover from its economic troubles, Lammot du Pont and other family members organized political opposition to these programs, which were collectively labeled the New Deal. He continued to expand the Du Pont fortune during the 1930s Great Depression, the worst economic crisis in U.S. In 1926 Lammot du Pont became the eighth consecutive family member to be named president of the family business.

The du Pont family became one of the wealthiest families in the nation. With its war profits, Du Pont greatly diversified it was no longer just an explosives company but a world-leading chemical corporation.

Boosted by gunpowder sales to the government in the War of 1812 (1812–14), the company began to amass large profits during the American Civil War (1861–65) and World War I (1914–18). In 1802 Éleuthère Irénée du Pont (1771–1834), an immigrant from France, built a gunpowder mill on the Brandywine River in Delaware. Gerard colby zilg in du pont: behind the nylon curtainĭu Pont is one of the most noted family names in U.S.

'Lammot du Pont, although a multi-millionaire, was the family's fanatic on thrift, often carrying his own luggage in order to avoid having to tip.'

Alfred dupont dent married wyckoff