Du Pont family.

Du Pont family arrived in the U.S. from France in 1800. Subsequently E.I. du Pont purchased land on the Brandywine River north of Wilmington, Del., and began a gunpowder mill in 1802 which grew to be a major manufacturer of explosives and later chemicals. Members of the Du Pont family became leaders in Delaware's economy, society, and public life.

From the description of Du Pont family papers, 1804-1962. (Historical Society of Delaware). WorldCat record id: 71014794