Dr. Alexis Irénée du Pont (1843-1904) was a businessman and non-practicing physician who resided in both Louisville, Kentucky, and Wilmington, Delaware. He was a grandson of Éleuthère Irénée du Pont de Nemours (1771-1834), the eponymous founder of the E.I. du Pont de Nemours & Company in Wilmington, Delaware, and son of Alexis Irénée du Pont (1816-1857) and Joanna Maria Smith du Pont (1815-1876). The collection contains correspondence between Alexis I. du Pont Jr. and his mother Joanna while he was attending the Episcopal Academy in Philadelphia. In addition, there are also letters from his father and sister.

Dr. Alexis Irénée du Pont (1843-1904) was a businessman and non-practicing physician who resided in both Louisville, Kentucky, and Wilmington, Delaware. The Alexis Irénée du Pont family papers primarily consist of both outgoing and incoming correspondence from A. I. du Pont and his immediate family.

Alfred Victor du Pont (1900-1970) was a partner in the Wilmington, Delaware, architectural firm of Massena and Du Pont, and he was the third child of Alfred I. du Pont (1864-1935) and his first wife Bessie Gardner du Pont (1864–1949). This small collection includes both business and personal papers. The largest portion is made up of Alfred V. du Pont's correspondence with his father, Alfred I. du Pont.

Alfred Victor du Pont (1798-1856) was the eldest son of E.I. du Pont (1771-1834) and a senior partner of E.I. du Pont de Nemours & Company. The collection contains three letters he wrote to William Kemble (1795-1881), operator of the West Point Foundry and DuPont powder sales agent in New York City, about sales and shipments of gunpowder and credits.

Alfred Victor du Pont (1798-1856) was a senior partner in E.I. du Pont de Nemours & Company, a gunpowder manufacturer. This collection of papers documents Alfred V. du Pont’s business affiliations, relations with other family members, and relationship with du Pont workers. The bulk is comprised of correspondence, and the collection also includes a small number of advertising circulars.

Alice Belin du Pont (1872-1944) was a member of several social clubs and became very involved with philanthropic work. She was the daughter of Henry Belin Jr. (1843-1918) and Margaretta Lammot Belin (1846-1927), and wife of Pierre S. du Pont (1870-1954). The letter is from du Pont to Haynes Battan (1898-1979), a Longwood employee.

Catherine C. Irving (1884-1982) was the wife of Alexander Duer Irving (1873-1941). He was an aide to President Woodrow Wilson (1856-1924) at the Versailles peace treaty negotiations in 1919 after World War I. The letter from Irving to W.W. Laird (1910-1989), she recounts an anecdote about Col. H.A. du Pont (1838-1926).

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. This collection contains photocopies of five complaints submitted to du Pont de Nemours when he was a deputy from Chevannes to the Assemblee des Trois Ordres du Bailliage de Nemours.

The Dimmick family were descendants of the founders of E.I. du Pont de Nemours & Company, a chemical research and manufacturing company. The collection contains a microfilm copy of correspondence between Joanna (Smith) du Pont (1815-1876) and her daughter, Joanna (du Pont) Dimmick (1854-1901), and letters from Sophie M. du Pont (1810-1888) to her niece, Dimmick, and the latter's step-daughter, Lavinia Elizabeth Dimmick (1874-1946). The letters are personal in nature, including du Pont family news.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. He was an advocate for a national educational system and promoted Franco-American trade relations. Françoise (Robin) Poivre (1748-1841) was the second wife of Pierre Samuel. Françoise Julienne Ile de France (Poivre) Bureaux de Pusy (1770-1845) was a daughter from Poivre's first marriage. This collection includes a small selection of correspondence, including details on the family's immigration to the United States from France and Bureaux de Pusy's financial problems.

Pierre Samuel du Pont de Nemours was a French political economist, writer, publisher, and public administrator. He was an advocate for a national educational system and promoted Franco-American trade relations. Francoise (Robin) Poivre du Pont was his second wife. His grandson, Samuel Francis du Pont (1803-1865) was a Rear Admiral in the United States Navy and fought in the Mexican-American War and the Civil War. This collection consists of twenty-three photocopied letters, primarily from Pierre Samuel du Pont de Nemours (1739-1817), but also Francoise du Pont de Nemours (1748-1831) and Samuel Francis du Pont (1803-1865). The correspondence is primarily to Marie Anne Lavoisier Thompson (1758-1836), a French chemist and close friend of the family.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. Françoise Robin du Pont (1748-1841) was the second wife of du Pont de Nemours. The collection contains copies of letters of both du Pont de Nemours to Monsieur de la Fontaine, Jacques Necker (1732-1804), Philippe Nicolas Harmand (1759-1838), and Francoise Gabrielle Clemence Harmand.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. Françoise Robin du Pont (1748-1841) was the second wife of du Pont de Nemours. The collection contains photocopies of letters written by both du Pont de Nemours regarding brochures.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. Françoise Robin du Pont (1748-1841) was the second wife of du Pont de Nemours. The collection contains four letters from the du Ponts to Jonathan Russell (1771-1832), American Chargé d'Affaires in Paris.

The Du Pont descendants and allied families are the children of brothers Victor Marie du Pont (1767-1827) and Éleuthère Irénée "E.I." du Pont (1771–1834), as well as their grandchildren and relatives through marriage. Victor Marie du Pont and E.I. du Pont were the sons of Pierre Samuel du Pont de Nemours (1739-1817), a French political economist, writer, publisher, and public administrator. This collection consists of the papers of the descendants of Victor Marie and Eleuthère Irénée du Pont and members of allied families. The principal holdings are for Amelia Elizabeth du Pont (1796-1869) and Charles Irénée du Pont (1797-1869), children of Victor du Pont, and Charles's wife, Dorcas Van Dyke (1806-1838), as well as for Victorine du Pont Bauduy (1792-1861), Alfred Victor du Pont (1798-1856), and Eleuthera du Pont Smith (1806-1876), children of E.I. du Pont.

The Du Pont family is a prominent Delawarean family descended from Pierre Samuel du Pont de Nemours (1739-1817), a French political economist, writer, publisher, and public administrator who immigrated to America with his sons, Victor Marie du Pont (1767-1827) and Eleuthère Irénée du Pont (1771-1834), in 1800. In 1802, he founded E.I. du Pont de Nemours & Company with his younger son, Eleuthère Irénée du Pont. E.I. du Pont de Nemours & Company is a chemical research and manufacturing company more commonly referred to as the DuPont Company. This small set of materials contains business and personal papers. The collection is organized into three series: Correspondence, business, and personal documents; Copies and extracts of correspondence and other documents; and Illustrative materials.

This small collection of du Pont family miscellany came to Hagley from Winterthur as an assortment of various family items that did not relate to their individual library holdings. The items, though extremely fragmentary, represent over two centuries of du Pont family history.

Abraham Dupont (1572-1640) was the progenitor of the South Carolina branch of the Du Pont family. In France, he dealt in manufactures of brass and copper. This is a small collection of his papers and those of his immediate descendants. The documents include the earliest records still extant in the Du Pont family papers. They are important for the evidence of descent they offer and for details about the ancestors of Pierre Samuel du Pont de Nemours (1739-1817). Many relate to landed property in Rouen and in the nearby parishes of Fontaine-sous-Préaux and Roncherolles.

This collection of family correspondence encompasses several generations of the du Pont, Kemble, and de Forest families. Victorine du Pont (1825-1887), the eldest child of Alfred Victor du Pont (1798-1856), senior partner in E.I. du Pont de Nemours & Company, and Margaretta Elizabeth (Lammot) du Pont (1807-1898), married Peter Kemble (1825-1887), son of William Kemble the company's New York business agent. One of their daughters, Meta Kemble (1852-1933), married New York artist Lockwood de Forest (1850-1932).

Eleuthère Paul du Pont (1887-1950) was the founder of the luxury automobile company DuPont Motors, Incorporated in 1919. In 1930, E. Paul du Pont also became the president of the Indian Motorcycle Company in Springfield, Massachusetts. Throughout his life, E. Paul du Pont developed numerous patents and wrote articles for various trade publications in the automobile industry. DuPont Motors, Incorporated was a manufacturing company of luxury automobiles, founded by E. Paul du Pont in 1919 in Wilmington, Delaware. Indian Motorcycle Company is a manufacturer of a wide variety of motorcycles. In 1930, after selling DuPont Motors, Incorporated stock, E. Paul du Pont bought a large share of Indian Motorcycle Company stock and became the company president. This collection documents both the professional and personal history of Eleuthère Paul du Pont and his family. The material spans from the end of the nineteenth century through the twentieth century. The collection is predominantly textual material and photographic prints having to do with both DuPont Motors, Incorporated and Indian Motorcycle Company administrative and financial correspondence and advertising and publications. Besides business material, the collection includes personal letters between E. Paul du Pont and his siblings and children, and family snapshots and portraits usually taken at their home in Delaware.

Eleuthère Irénée du Pont (1771-1834) was the founder of E.I. du Pont de Nemours & Company. The collection contains original love letters from du Pont to his wife, Sophie (Dalmas) du Pont (1775-1828). He writes of how much he loves his wife and misses her when away. English transcribed extracts of several letters were done by their daughter, Sophie Madeleine du Pont (1810-1888).

Eleuthère Irénée du Pont (1771-1834), founder of E.I. du Pont de Nemours & Co., and Sophie Madeleine Dalmas du Pont (1775-1828) had four daughters. This group of materials within the Winterthur Manuscripts collection contains the papers of the three eldest: Victorine (du Pont) Bauduy (1792-1861), Evelina (du Pont) Bidermann (1796-1863), and Eleuthera (du Pont) Smith (1806-1876), as well as their respective husbands: Ferdinand Bauduy (1791-1814), James Antoine Bidermann (1790-1865), and Thomas MacKie Smith (1809-1852). Victorine du Pont Bauduy and Eleuthera du Pont Smith were teachers at the Brandywine Manufacturers' Sunday School (BMSS), a nonsectarian school offering classes in reading, writing, arithmetic, and Bible lessons. Evelina du Pont Bidermann spent much of her adult life traveling alongside her husband and then building the Winterthur mansion in Delaware. Their papers document details about their education, social life, family, attitudes, and activities through incoming and outgoing correspondence, as well as personal papers such as diaries and account books.

Eleuthère Irénée du Pont (1771-1834), founder of E. I. du Pont de Nemours & Co., and Sophie Madeleine Dalmas du Pont (1775-1828) had three sons: Alfred Victor du Pont (1798-1856), Henry du Pont (1812-1889), and Alexis I. du Pont (1816-1857). All three were partners in their father's company. This collection contains the papers of Alfred Victor du Pont, Henry du Pont, and Alexis I. du Pont, as well as those of their wives: Margaretta Elizabeth Lammot du Pont, Louisa Gerhard du Pont, and Joanna Maria Smith du Pont. The papers of Henry du Pont are the largest component, and reflect his business and military activities. Certain papers of each son relate to the affairs of E. I. du Pont de Nemours & Co.

E.I. du Pont de Nemours & Company is a chemical company more commonly referred to as the DuPont Company. The company was established in 1802 by Pierre Samuel du Pont de Nemours (1739-1817) and his son Éleuthère Irénée du Pont (1771-1834) for the production of gunpowder. The papers in this collection date from the lifetime of E.I. du Pont and document important aspects of the early history of the DuPont Company.

Eleuthera du Pont Smith (1806-1876) and Sophie Madeleine du Pont (1810-1888) were daughters of Eleuthère Irénée du Pont (1771-1834) and Sophie Madeleine Dalmas du Pont (1775-1828). This collection contains letters from the du Ponts to Mary Wilkinson, a former student at the Brandywine Manufacturers' Sunday School. The letters discuss domestic matters, including family news, health, faith, and needlework for the mills.

Éleuthère Irénée du Pont de Nemours (1771–1834) was a French American chemist and industrialist who founded the gunpowder manufacturer E.I. du Pont de Nemours & Company. E.I. du Pont married Sophie Dalmas du Pont (1775-1828) in 1791; the couple had eight children, one of whom died in infancy. This collection of papers includes outbound and inbound correspondence covering personal and business matters. These include personal accounts, writings and memoirs, legal documents, and miscellany, of which the majority are accounts. There are papers of the E.I. du Pont de Nemours & Co. that date from 1802 to 1850 and include correspondence (drafts, retained copies, and letters received), contracts and other legal documents, accounts, bills and receipts, checks, promissory notes, bills of exchange, drafts, and certain miscellaneous notes and memoranda.

Eugene du Pont Jr. (1873-1954) was a director of the E.I. du Pont de Nemours & Company from 1917 until 1954, and a great grandson of company founder, Éleuthère Irénée du Pont (1771-1834). The collection contains the personal papers of Eugene du Pont, Jr., and the records of the Kinloch Gun Club, a private shooting club which he founded. It also contains a separate collection of correspondence between his brother Alfred I. du Pont, vice president and general manager of the DuPont Company, with his assistant Frank L. Connable, which is an important source for the history of the company in the early 1900s.

Francis Gurney du Pont (1850-1904) was the youngest son of Alexis I. du Pont (1816-1857) and Joanna Smith du Pont (1815-1876), and grandson of Éleuthère Irénée "E.I." du Pont (1771-1834), founder of E.I. du Pont de Nemours & Company, a chemical company more commonly referred to as the DuPont Company. The collection consists primarily of correspondence from du Pont to his wife, Elise Wigfall Simons (1849-1919), but include items from other family members, as well as a journal of du Pont's, manuscripts written by him, and plays and novels by Alice Simons (1849-1891).

Francis Gurney du Pont (1850-1904) was the youngest son of Alexis I. du Pont (1816-1857) and Joanna Smith du Pont (1815-1876), and grandson of Éleuthère Irénée "E.I." du Pont (1771-1834), founder of E.I. du Pont de Nemours & Company, a chemical company more commonly referred to as the DuPont Company. The collection contains two letter books of du Pont to F.G. Thomas (-1901) of the Iowa Powder Mills, photocopies of selected documents by Benjamin Franklin (1706-1790) on gunpowder, and on awards to John Paul Jones (1747-1792) for his victory over HMS Serapis, and letter from Samuel Courtauld (1752-1821) to Captain Joseph H. Rees (1789-1821).

Francis Victor du Pont (1894-1962) was a civil engineer and political figure in Delaware and Maryland. This collection combines papers and memorabilia of Francis Victor du Pont and those of his parents and ancestors.

Francoise Robin du Pont (1748-1841) was the second wife of Pierre Samuel du Pont de Nemours (1739-1817) a promienent French political economist, writer, publisher, and public administrator. The collection contains a letter from du Pont to Marc Antoine Jullien (1775-1848), "Ancien Inspecteur aux Revues" asking for copies of recent reviews or journals.

Francoise Robin du Pont (1748-1841) was the second wife of Pierre Samuel du Pont de Nemours (1739-1817) a promienent French political economist, writer, publisher, and public administrator. The collection contains a letter from du Pont to Marc Antoine Jullien (1775-1848), "Ancien Inspecteur aux Revues" asking for copies of recent reviews or journals.

Francoise Robin du Pont (1748-1841) was the second wife of Pierre Samuel du Pont de Nemours (1739-1817) a promienent French political economist, writer, publisher, and public administrator. The collection contains a letter from du Pont to Monsieur Pierre Didot (1761-1853), seeking the address of Marguerite Charlotte Desiree de la Fite de Pelleport (1780-1847).

Francoise Robin du Pont (1748-1841) was the second wife of Pierre Samuel du Pont de Nemours (1739-1817) a promienent French political economist, writer, publisher, and public administrator. The collection contains letters from du Pont to Baron (1757-1830) and Baronne Desmousseaux de Givre (1768-1843). The letters contain discussion of religious societies, his trip to Italy, and personal matters.

Francoise Robin du Pont (1748-1841) was the second wife of Pierre Samuel du Pont de Nemours (1739-1817) a promienent French political economist, writer, publisher, and public administrator. The letters are from du Pont to Madame Clarice Aublay (nee Hortode) and cousin Albert.

Francoise Robin du Pont (1748-1841) was the second wife of Pierre Samuel du Pont de Nemours (1739-1817) a promienent French political economist, writer, publisher, and public administrator. The collection includes photocopied letters from du Pont to Jacques Henri Bernardin de St. Pierre (1737-1814). The letters are entirely personal, with social and literary references, all general in character.

Gabriel Manigault (1758-1809) was a Charleston merchant, plantation owner, architect, and South Carolina state Representative. In 1805, Manigault sold part of his property in South Carolina and moved to Clifton, an estate near Philadelphia, Pennsylvania. These are copies of Manigault's letters relating to members of the du Pont family.

Henry du Pont (1812-1889) was the second son of Eleuthère Irénée du Pont (1771-1834) and senior partner of E.I du Pont de Nemours & Company from 1850 to 1889. The collection consists of materials relating to the descendants of Henry and Louisa Gerhard du Pont. Primarily, the collection consists of portraits and other photographs of their daughters Evelina, Ellen, Louisa, Sara, Victorine, Sophie and other family members.

Henry Algernon du Pont (1838-1926) was a military officer, a politician from Delaware, and vice president of E.I. du Pont de Nemours & Co. The collection consists of five letters from du Pont to Gustav Schelle (1845-1927) and one from Schelle. The letters mostly express personal friendship and deal indirectly with Schelle's writings on the Physiocraps and du Pont de Nemours.

Henry Algernon du Pont (1838-1926) was a military officer, a politician from Delaware, and vice president of E.I. du Pont de Nemours & Co. Two typed letters from du Pont to J. Simpson Dean (1898-1978) and Paulina du Pont Dean (1903-1964) concerning the new private road beginning at the intersection of the two private roads to Eleutherian Mills and Nemours residences.

Henry Algernon du Pont (1838-1926) was a military officer, a politician from Delaware, and vice president of E.I. du Pont de Nemours & Co. The letter from du Pont to Benjamin W. Austin (-1898) secretary of Trinity Historical Society in Dallas, Texas from 1885 to 1894, expressing thanks for honor conferred by "your Association."

Henry Algernon du Pont (1838-1926) was a military officer, a politician from Delaware, and vice president of E.I. du Pont de Nemours & Co. The letter from du Pont to F.G. [Frederick G.] Larned (1860-1937) of Poland, New York, explains the position and duties of the man he wishes to employ on his farm at Winterthur.

Henry Algernon du Pont (1838-1926) was a military officer, a politician from Delaware, and vice president of E.I. du Pont de Nemours & Co. On July 21, 1896, du Pont wrote a letter to John C. Higgins (1838-1924) congratulating him on his nomination for Governor of Delaware for the Republican Party.

Henry Algernon du Pont (1838-1926) was a military officer, a politician from Delaware, and vice president of E.I. du Pont de Nemours & Co. The collection contains two photocopied letters of du Pont to President Benjamin Harrison (1833-1901) concerning the Republican Party in Delaware prior to the state elections.

Henry Algernon du Pont (1838-1926) was a military officer, a politician from Delaware, and vice president of E.I. du Pont de Nemours & Co. The collection contains two photocopied letters from du Pont to Daniel Ammen (1820-1898), a Naval officer and Chief of the Bureau of Navigation.

Henry Algernon du Pont (1838-1926) was a military officer, a politician from Delaware, and vice president of E.I. du Pont de Nemours & Co. The collection contains miscellaneous material related to du Pont, including a letter, Christmas cards, invitation to meet the Representatives of the Societies of the Cincinnati, and invitation from the Secretary of the Navy to the unveiling of the statue of Samuel Francis du Pont (1803-1865).

Henry Belin du Pont (1898-1970) was a research engineer with General Motors and the vice president of E.I. du Pont de Nemours & Company from 1939 to 1963. This collection contains correspondence from several generations of the family from the early nineteenth through the twentieth century, including Francis Gurney Smith (1784-1873), Elizabeth (Eliza) MacKie Smith (1787-1861), Joanna Smith du Pont (1815-1876), Frances du Pont Coleman (1838-1902), Eleuthera "Ella" du Pont Bradford (1848-1906), Eleuthera Bradford du Pont (1873-1953), Alicia Bradford Maddox (1875-1920) and Phoebe George Bradford (1794-1840).

Henry du Pont (1812-1889) was an American military officer and son of Eleuthère Irénée du Pont (1771-1834), founder of E.I. du Pont de Nemours & Co., and Sophie Madeleine Dalmas du Pont (1775-1828). The collection contains two photocopied letters to du Pont, one from his nephew, James Irenee Bidermann (1817-1890), and the other letter from his sister, Sophie Madeleine du Pont (1810-1888).

Henry du Pont (1812-1889) was an American military officer and son of Eleuthère Irénée du Pont (1771-1834), founder of E.I. du Pont de Nemours & Co., and Sophie Madeleine Dalmas du Pont (1775-1828). In the letter to James C. Aiken (1806-1884), du Pont agrees to sign a letter of recommendation for a political appointment to president-elect Grant (1822-1885).

Henry du Pont (1812-1889) was an American military officer and son of Eleuthère Irénée du Pont (1771-1834), founder of E.I. du Pont de Nemours & Co., and Sophie Madeleine Dalmas du Pont (1775-1828). In 1854, du Pont wrote a letter to Senator John M. Clayton (1796-1856), requesting assistance in securing an appointment for his son, Henry A. du Pont (1838-1926), to the United States Military Academy at West Point.