Sunday, November 23, 2025

DuPont Family Bloodline

 


The du Pont family (English: /duːˈpɒnt/) or Du Pont family is a prominent family descended from Pierre Samuel du Pont de Nemours (1739–1817), a French minor aristocrat. Currently residing in the U.S. states of Delaware and Pennsylvania, the Du Ponts have been one of the country's richest families since the mid-19th century, when they founded their fortune in the gunpowder business. In the late 19th and early 20th centuries, they expanded their wealth through the chemical industry and the automotive industry, with substantial interests in the DuPont company, General Motors, and various other corporations.


Several former du Pont family estates are open to the public as museums, gardens, or parks, such as Winterthur, Nemours, Eleutherian Mills, Longwood Gardens, Gibraltar, Mt. Cuba, and Goodstay. The family's interest in horticulture was brought to the United States by their immigrant progenitors from France and reinforced in later generations by avid gardeners who married into the family. As early as 1924, the du Ponts were recognized by Charles Sprague Sargent, the famed plantsman and director of Harvard's Arnold Arboretum, as "a family which has made the neighborhood of Wilmington, Delaware, one of the chief centers of horticulture in the United States."


The family's first American estate, Eleutherian Mills, located at Hagley Museum and Library, was preserved and restored by Louise E. du Pont Crowninshield. She also helped to establish the National Trust for Historic Preservation in 1949. In recent years, the family has continued to be known for its association with political and business ventures, as well as philanthropic causes.


Two family members were the subjects of well-publicized criminal cases. John Eleuthère du Pont was convicted of murdering wrestling coach Dave Schultz.


As of 2016, the family fortune was estimated at $14.3 billion, spread across more than 3,500 living relatives.

History


Pierre Samuel du Pont de Nemours was the son of a Parisian watchmaker and a member of a Burgundian Huguenot family. On his mother's side, he was a descendant of a minor noble family. In 1800, he and his sons, Victor Marie du Pont and Éleuthère Irénée du Pont, migrated from France to the United States. He used the resources of their Huguenot heritage to found one of the most prominent of American families, and one of its most successful corporations, E. I. du Pont de Nemours and Company, initially established by Éleuthère Irénée as a gunpowder manufacturer.


In 1802, Éleuthère Irénée du Pont established a gunpowder mill on the banks of the Brandywine River near Wilmington, Delaware. The location, named Eleutherian Mills, provided all the necessities to operate the mill: a water flow sufficient to power it, available timber (mainly willow trees) that could be turned into charcoal fine enough to use for gunpowder, and proximity to the Delaware River to allow for shipments of sulfur and saltpeter, the other ingredients used in the manufacture of gunpowder. There were also nearby stone quarries to provide needed building materials.


Over time, the Du Pont company grew into the largest black powder manufacturing firm in the world. The family remained in control of the company up to the 1960s, and family trusts still own a substantial amount of the company's stock. This and other companies run by the du Pont family employed up to 10 percent of Delaware's population at its peak. In the 19th century, the Du Pont family maintained their family wealth by carefully arranged marriages between cousins, which, at the time, was the norm for many families.


The family played a large part in politics during the 18th and 19th centuries and assisted in negotiations for the Treaty of Paris and the Louisiana Purchase. Both T. Coleman and Henry A. du Pont served as U.S. senators. Pierre S. du Pont, IV, served as Governor of Delaware.


The family has played an important role in historic preservation and land conservation, including helping to found the National Trust for Historic Preservation, preserving President James Madison's home, Montpelier, and establishing numerous museums such as Winterthur and the Delaware Museum of Natural History. The Brandywine Conservancy, founded by family member George Alexis Weymouth, owns around 2,350 acres (951 ha) of land in Pennsylvania and Delaware, and owns permanent conservation easements on an additional 37,000 acres (14,973 ha). In 2013, Lammot du Pont Copeland's Mt. Cuba Center contributed over $20 million to purchase land for donation to the federal government to form the First State National Historical Park.


Beginning with William du Pont, Jr. and his sister, Marion duPont Scott, many members of the Du Pont family have been involved in the breeding and racing of thoroughbred racehorses, as well as establishing racehorse venues and training tracks, including Delaware Park and Fair Hill, Maryland. While most Du Ponts are members of the Episcopal Church, Éleuthère Irénée du Pont was a Huguenot.


Spelling of the name


The stylings "du Pont" and "Du Pont" are most prevalent for the family name in published, copy-edited writings. In many publications, the styling is "du Pont" when quoting an individual's full name and "Du Pont" when speaking of the family as a whole. Some individual Du Ponts have chosen to style it differently, such as Samuel Francis Du Pont. The name of the chemical company founded by the family is today styled solidly as "DuPont" in the short form. The long form is styled as E. I. du Pont de Nemours and Company. The stylings "Du Pont" and "DuPont" for the company's short name coexisted in the 20th century, but the latter is now consistently used in the company's branding.


The solid styling "duPont" is less common. The Nemours Alfred I. duPont Hospital for Children uses it, as does the duPont Registry. William S. Dutton's mid-20th-century history of the family business uses "Du Pont" both for the family mentioned generally and for the company's short name, but "du Pont" in an individual's full name, for example, "Éleuthère Irénée du Pont", "Henry du Pont", "Alfred Victor du Pont", "Lammot du Pont". For example, "when he [Lammot du Pont] went to General Henry du Pont with the proposal that the Du Ponts manufacture dynamite, he was answered by a blunt and unqualified 'No!'"


The first page of Dutton's monograph  contains the following footnote about the surname's styling. The mention of "Samuel Dupont" here refers to the 18th-century Parisian watchmaker, not to his 19th-century descendant: "Samuel Dupont used this form of the family name [i.e., Dupont], but beginning in 1763 his son signed himself 'Du Pont.' Later, he added 'de Nemours' to his name to prevent confusion with two other Duponts in the French Chamber of Deputies. Du Pont, in English, is pronounced with the accent on the second syllable. In French, neither syllable is accented."


French orthographic tradition for the styling of de, or its inflected forms, as a surname particle, in either nobiliary or non-nobiliary form, is discussed at Nobiliary particle § France. In non-nobiliary form, the prevalent French styling of the name is "Dupont". Thus, the choice by Pierre Samuel du Pont de Nemours to begin styling himself so during the monarchical era hints at social ambition. Today, the influence of French orthography and prerevolutionary class structure on how English orthography styles surnames is outweighed by how families and individuals so named style themselves.


Alphabetical list of selected descendants of Pierre Samuel du Pont de Nemours

Below is an alphabetical listing of selected members of the family.


Alexis Felix du Pont (1879–1948)

Alexis Felix du Pont Jr. (1905–1996)

Alexis Irénée du Pont (1816–1857)

Alexis Irénée du Pont Jr. (1843–1904)

Alexis Irénée du Pont Bayard (1918–1985)

Alfred Irénée du Pont (1864–1935)

Alfred Victor Philadelphe du Pont (1798–1856)

Alice Frances du Pont (1912–2002)

Amy Elizabeth du Pont (1875–1962)

Benjamin Franklin du Pont (born 1964)

Charles Irénée du Pont (1797–1869)

Charles L. Copeland (born 1963)

Coleman Dupont Donaldson (1922–2009)

Éleuthère Irénée du Pont (1771–1834)

Éleuthère Paul du Pont (1887–1950)

Esther D. du Pont (1908–1984)

Ethel du Pont (1916–1965)

Eugene du Pont (1840–1902)

Francis Gurney du Pont (1850–1904)

Francis Irénée du Pont (1873–1942)

Francis Victor du Pont (1894–1962)

Franklin D. Roosevelt III (born 1938)

George Alexis Weymouth (1936–2016)

Harry Alfred Rée (1914–1991)

Henry du Pont (1812–1889)

Henry Algernon du Pont (1838–1926)

Henry Francis du Pont (1880–1969)

Hugh Rodney Sharp Jr. (1909–1990)

Jane du Pont Lunger (1914–2001)

John Éleuthère du Pont (1938–2010)

Irénée du Pont (1876–1963)

Lammot du Pont I (1831–1884)

Lammot du Pont II (1880–1952)

Lammot du Pont Copeland (1905–1983)

Louisa d'Andelot Carpenter (1907–1976)

Louise Evelina du Pont Crowninshield (1877–1958)

Lydia Chichester du Pont (1907–1958)

Marion duPont Scott (1894–1983)

Pierre Samuel du Pont de Nemours (1739–1817)

Pierre S. du Pont (1870–1954)

Pierre S. "Pete" du Pont IV (1935–2021)

Richard Chichester du Pont (1911–1943)

Robert Brett Lunger (born 1945)

Robert Ruliph Morgan Carpenter Jr. (1915–1980)

Robert Ruliph Morgan Carpenter III (1940–2021)

Ruth Ellen du Pont (1922–2014)

Samuel Francis Du Pont (1803–1865)

Thomas Coleman du Pont (1863–1930)

Victor Marie du Pont (1767–1827)

Victorine du Pont Bauduy (1792–1861)

Victorine du Pont Homsey (1900–1998)

William du Pont (1855–1928)

William du Pont Jr. (1896–1965)

Zara DuPont (1869–1946)


Network


Associates


The following is a list of figures closely aligned with or subordinate to the du Pont family.


Edward Ball

Thomas F. Bayard Jr.

Joe Biden[16]

Jacques Antoine Bidermann

Lucius M. Boomer

Donaldson Brown

C. Douglass Buck

Wallace Carothers

R. R. M. Carpenter

Walter S. Carpenter Jr.

Theophilus P. Chandler Jr.

Uma Chowdhry

Marian Cruger Coffin

Thomas M. Connelly

William D. Denney

Herbert S. Eleuterio

Linda Fisher

Crawford Greenewalt

Charles O. Holliday

Edward G. Jefferson

Ellen J. Kullman

James Lynah

James P. Mills

Hugh M. Morris[17]

William Dale Phillips

John J. Raskob

Donald P. Ross

Franklin D. Roosevelt Jr.

Willard Saulsbury Jr.

Irving S. Shapiro

William H. Shaw

Alfred Sloan

Newton Steers


Businesses


The following is a list of businesses in which the du Pont family held a controlling or otherwise substantial interest.


Bellevue-Stratford Hotel

Central Coal and Iron Company

Conoco

Delaware Trust Company

DuPont de Nemours, Inc.

The Equitable Life Assurance Society

Fair Hill Training Center

Florida East Coast Railway

Florida National Bank

General Motors

Hercules Powder Company

Hickory Tree Farm & Stable

Hotel McAlpin

Indian Motocycle Manufacturing Company

Nemours Trading Corporation

National Bank of Detroit

The News Journal

North American Aviation

Philadelphia Phillies

Piasecki Helicopter Corporation

Remington Arms Company

St. Joe Company

US Airways

United States Rubber Company

Victorine & Samuel Homsey

Wilmington Trust

yet2.com

Philanthropy and nonprofit organizations

Alfred I. duPont Testamentary Trust

American Liberty League

Camp Rodney (Boy Scouts of America)

Chichester Dupont Foundation

Delaware Museum of Natural History

DuPont-MIT Alliance

Jessie Ball duPont Fund

Kennett High School

Longwood Foundation

Marion duPont Scott Equine Medical Center

National Trust for Historic Preservation

Nemours Children's Hospital, Delaware

Nemours Foundation

New Bolton Center

Phi Kappa Sigma

Population Action International

Springfield Foundation, Inc.

St. Andrew's School

Thouron Scholars Program

Unidel Foundation

Zip Code Wilmington

Buildings, estates, and historic landmarks

Bellevue State Park (Delaware)

Brandywine Creek State Park

Delaware Park Racetrack

DuPont Building

DuPont-Guest Estate

DuPont Highway

DuPont Village Historic District

Epping Forest

Fairlee Manor Camp House

Hagley Museum and Library

Dupont historic sites along Delaware Rte. 141

Eleutherian Mills

Empire State Building

Longwood Gardens

Louviers (Wilmington, Delaware)

Lower Louviers and Chicken Alley

Montpelier

Mt. Cuba Center

Nemours Mansion and Gardens

Owl's Nest Country Place

Ruth Wales du Pont Sanctuary

Stockton-Montmorency

Strand Millas and Rock Spring

Owl's Nest Country Place

Wilmington Trust Company Bank

Winterthur Museum, Garden and Library

https://en.wikipedia.org/wiki/Du_Pont_family

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