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 is comprised of photocopied of typescript copies of letters of du Pont to and from his family.

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 consists of photocopied letters from Henry du Pont (1812-1889) and typescript of Pierre Samuel du Pont de Nemours (1739-1817) autobiography he wrote in 1792. The letters are from sisters Eleuthera du Pont Smith (1806-1876) and Sophie Madeleine du Pont (1810-1888), as well as William Tecumseh Sherman (1820-1891) and M. Saito of the Japanese Navy.

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 papers relating to du Pont's enrollment and time at the U.S. Military Academy at West Point, including letters from Callender Irvine (1775-1841), Peter B. Porter (1773-1844), E.I. du Pont (1881-1834); du Pont's obituary as published in the 1890 annual reunion of the Association of Graduates Office at the Academy; and a roster of the West Point class of 1833.

The Hiebler family papers include documents pertaining to four generations. The bulk of the collection consists of letters written by Alfred I. du Pont to his grandsons Bayard Hiebler and Benno Hiebler, dated 1927 to 1935.

Pierre Samuel "P.S." du Pont (1870-1954) was the great-grandson of Eleuthère Irénée du Pont (1771-1834), founder of E.I. du Pont de Nemours & Company, and that company played a major role in P.S. du Pont's life. He is most well-known for developing the preeminent botanical gardens, Longwood Gardens in Kennett Square, Pennsylvania. The P. S. du Pont estate papers document the distribution of physical items from his Longwood estate in Kennett Square, Pennsylvania, in the years following his death.

Irene Sophie du Pont (1877-1961) was a philanthropist who served as the chairperson of the Delaware Commission for the Blind for thirty years. She married her distant cousin, Irénée du Pont (1876-1963), on February 1, 1900. Their eldest daughter was Irene "Sophie" Sophie du Pont May (1900-2001). Sophie du Pont May was a churchwoman and a philanthropist. This small collection consists of two sets of papers, one belonging to Irene Sophie du Pont and the other to her daughter, Sophie du Pont May. The papers were removed from each of their respective lap writing desks for preservation purposes. Irene Sophie du Pont's papers consist primarily of letters written to her between 1887 and 1898, prior to her marriage in 1900. Sophie du Pont May's papers are entirely comprised of her school materials from the Friends School in Wilmington, Delaware, dating from 1910 to 1916.

Isabella du Pont Sharp (1882-1946) was a descendent of the founders of E.I. du Pont de Nemours & Company. The collection contains typed transcripts of letters written by Sharp to her sister, Margaretta du Pont Carpenter (1884-1973) while the Sharp family, friends, and children's nurses traveled around the world. The letters are filled with details about traveling, sightseeing, hotels, shopping, meals, and clothing.

Lavinia Dimmick (1874-1946) was a descendant of the founders of E.I. du Pont de Nemours & Company, a chemical research and manufacturing company. She was the daughter of Irene du Pont (1845-1877) and Edward Dimmick (1843-1895). Alfred Rée (1864-1933) was a chemist in England. This collection primarily consists of letters that passed between Alfred and Lavinia Rée during their courtship, ending with notes on their wedding reception, honeymoon travel and return to England.

Louise du Pont Crowninshield (1877-1958) was an early leader in the field of historic preservation and a collector of antiques and hooked rugs. The collection includes her papers as well as those of her husband Francis Boardman Crowninshield, her mother, and other family members.

Gertrude Ruhnka (1891-1981) was a research librarian at the Huntington Library in California. The collection contains her unpublished manuscript, "Love for life: a self-portrait of the first three generations of du Ponts in America, 1791-1834," and two letters from Ruhnka to J.B. Lippincott Company and Dr. Walter J. Heacock of the Eleutherian Mills-Hagley Foundation.

Anne Louise Germaine de Staël-Holstein (1766-1817), known as Madame de Staël, was a writer, philosopher, and politically engaged woman who survived the French Revolution and was exiled multiple times by Napoleon Bonaparte (1769-1821). Negative photostat of letter from Madame de Staël to Pierre Samuel du Pont de Nemours (1739-1817).

Margaretta Lammot du Pont (1807-1898) was the wife of Alfred Victor du Pont (1798-1856), who worked for E.I. du Pont de Nemours & Co. In 1885, she sent a letter to Meta Kemble de Forest (1852-1933) which indicates she is sending book from "Aunt Sophie" [Sophie Madeleine du Pont (1810-1888)].

Marie Delphine du Pont (1916-2009) was the great-great-grandaughter of E.I. du Pont (1771-1834), the founder of the DuPont Company. Her papers consist of letters and postcards between du Pont and her cousin, Irene Sophie du Pont May (1900-2001).

Mary Augusta Lammot (1811-1905) was a daughter of Daniel Lammot (1782-1877) and Susan Parham Beck Lammot (1786-1817). The letter is from Mary Augusta Lammot to her sister, Margaretta Lammot du Pont (1807-1898), describing her visit to Philadelphia, the things she saw there, and the people she met.

Mary Belin (1839-1913) married Lammot du Pont (1831-1884) and had eleven children, many who were prominent in the building up of the E.I. du Pont de Nemours & Company. The volume consists of a typed transcript of letters originally sent to Mary Belin du Pont (1839-1913) by her daughters Louisa ("La") (1868-1926), Sophie M. ("Tabby") (1871-1894), Isabella ("Bella") (1882-1946), and Margaretta ("Peg") (1884-1973) in 1894. The letters center around a single incident wherein Sophie, who was suffering from tuberculosis, was sent to Colorado Springs for a cure.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. His son, Eleuthère Irénée du Pont (1771-1834), established E.I. du Pont de Nemours & Co., a black powder manufacturer, on the Brandywine River in Delaware. The collection contains photocopies of three letters of du Pont de Nemours du Pont to Etienne Alexandre Jacques Anisson du Perron (1749-1794) and Alexandre Brongniart (1770-1847). The letters concern printing, natural sciences, and requesting scientific journals and bulletins.

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 of both du Pont de Nemours. His letter regards obtaining a "safe conduct" passport while heading a scientific expedition being sent to North America by the Institute National. Her letters are with a Bergen Point, New Jersey former neighbor, C. Preudhomme, and his son.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. Anne Louise Germaine de Staël-Holstein (1766-1817), known as Madame de Staël, was a writer, philosopher, and politically engaged woman who survived the French Revolution and was exiled multiple times by Napoleon Bonaparte (1769-1821). This collection contains two letters, one by du Pont de Nemours and one by de Staël. His letter was written the night the Bastille was stormed. Her undated letter concerns French relations with Sweden.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. Anne Louise Germaine de Staël-Holstein (1766-1817), known as Madame de Staël, was a writer, philosopher, and politically engaged woman who survived the French Revolution and was exiled multiple times by Napoleon Bonaparte (1769-1821). This collection contains six photocopied letters of du Pont de Nemours to Thomas Jefferson (1743-1826), and de Staël letters to unknown correspondents. The letters include references to the political situation in France, services of du Pont de Nemours printing establishment, and national affairs.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. The collection contains letters written to and from du Pont regarding business ventures, sale of books, dealing with creditors, and the fame he had brought to the town of Nemours.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. The collection contains a letter he wrote to a colleague concerning his proposed voyage to America.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. In 1800, accompanied by his sons, Victor Marie du Pont (1767-1827) and Eleuthère Irénée "E.I." du Pont (1771-1834), he arrived in America. This item is a letter to Jean-Barthélemy Lecouteaulx de Canteleu (1746-1818) concerning a newly invented brocade loom.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. Louis Marie de La Revelliere-Lepeaux (1753-1824) was a member of the French government in the time surrounding the French Revolution, including the Estates-General, the National Convention, and the French Directory. The letter from du Pont to La Revelliere-Lepeaux concern's du Pont's son Victor, who was then serving as French consul at Charleston, South Carolina.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. The collection contains a letter he wrote to Fermier General and Administrateur des Postes, offering advice on the handling of employees by Monneron and a collection of essays published by du Pont de Nemours about art exhibits in the Louvre in Paris.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. The letter he wrote to Philippe Albert Stapfer (1766-1840), Ministre de l'Interieur de la Republique Helvetique, concerns the Swiss political system and public educational system.

Pierre Samuel du Pont de Nemours was a French political economist, writer, publisher, and public administrator (1739-1817). The letters to Carl Fredrik, Comte de Scheffer, of Sweden (1715-1786), were part of a series to supply news from Paris, intended for Gustavus III, King of Sweden. Subjects include reviews of literary works, comments on political subjects, freedom of the press, du Pont accepting a Swedish knighthood, and biography of M. Turgot.

Pierre Samuel du Pont de Nemours was a French political economist, writer, publisher, and public administrator (1739-1817). The letters to Carl Fredrik, Comte de Scheffer, of Sweden (1715-1786) were part of a series to supply news from Paris, intended for Gustavus III, King of Sweden. Topics include volumes on political economy, a work by M. de Gebelin, formation of a Polish army, French financial matters, and Anne Robert Jacques Turgot's (1727-1781) retirement as French minister of Finance.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. In the letters to Marie Charles César de Fay, Comte de Latour-Maubourg (1756-1831), du Pont de Nemours explains plans for creating a French colony in America.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. During the summer of 1771, du Pont de Nemours tutored the son of Carl Friedrich von Baden (1728-1811), Carl Ludwig, Hereditary Prince of Baden (1755-1801). Carl Friedrich von Baden was the Margrave and then later the Grand Duke of Baden, a territory in the southwest of Germany, which at the time was part of the Holy Roman Empire. This collection consists of two microfilm reels and twenty-six photocopies of correspondence between du Pont de Nemours and members of Baden's court--the Grand Duke (Margrave at the time) and the Heredity Prince--pertaining to the activities of Baden's court, economics, and the education of the Heredity Prince.

Pierre Samuel "P.S." du Pont (1870-1954) was an industrialist, entrepreneur, and philanthropist. He was president of E.I. du Pont de Nemours & Company from 1915 to 1919 and chairman of the board of directors from 1919 to 1940. P.S. du Pont was the great-grandson of Eleuthère Irénée du Pont (1771-1834), founder of E.I. du Pont de Nemours & Company, and the great-great-grandson and namesake of the French economist Pierre Samuel du Pont de Nemours (1739-1817). During the early 1920s, P.S. du Pont became an active collector of Du Pont materials, and bought several important bodies of manuscripts from French dealers. This collection consists of manuscripts he collected that are primarily concerned with Du Pont de Nemours, the Physiocrats, the French Revolution, and the antecedents of the Du Ponts and allied families in France. The collection also contains the Wilmington & Kennett Turnpike Co. records dating from 1811 to 1921 that were acquired by P.S. du Pont from 1919 to 1920 when he purchased the company's stock, widened the road, and turned over its administration to the Delaware State Highway Department.

P.S. du Pont (1870-1954) and Louise du Pont Crowninshield (1877-1958) were second counsins and both had an interest in preservation. In the letter, du Pont suggests Eleutherian Mills and Hagley property be preserved as a historic site.

Pierre Samuel "P.S." du Pont (1870-1954) was president of E.I. du Pont de Nemours & Co. (more commonly known as the DuPont Company or simply DuPont) from 1915 to 1919 and chairman of the board from 1919 to 1940. P.S. du Pont was the great grandson of Eleuthere Irenee du Pont (1771-1834), founder of E.I. du Pont de Nemours & Company. He was also an avid collector of documents on the early history of the du Pont family and the DuPont Company. This collection contains elements which were selected from both company and family papers. The material was lodged in du Pont's Wilmington office for a number of years prior to his death in 1954.

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. He was the fourth child and second surviving son of Victor Marie du Pont (1767-1827) and his wife, Gabrielle Joséphine de la Fite de Pelleport (1770-1837). The letter is writing to inform an unidentified captain of Naval surgeon John S. Wiley's death.

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. He was the fourth child and second surviving son of Victor Marie du Pont (1767-1827) and his wife, Gabrielle Joséphine de la Fite de Pelleport (1770-1837). These two items are related to his service in the Navy, one a letter concerning his business interests in California, and one report regarding rotten gun breechings.

Samuel Francis du Pont (1803-1865) was a RearAdmiral in the United States Navy and fought in the Mexican-American War and the Civil War. He was the fourth child and second surviving son of Victor Marie du Pont (1767-1827) and his wife, Gabrielle Joséphine de la Fite de Pelleport (1770-1837). The three page letter written to an unidentified colonel discusses the opening of the Crystal Palace in New York as part of the "Exhibition of the Industry of All Nations" World's Fair.

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. He was the fourth child and second surviving son of Victor Marie du Pont (1767-1827) and his wife, Gabrielle Joséphine de la Fite de Pelleport (1770-1837). The letter to Andrew Hull Foote (1806-1863) says du Pont is enclosing autographs of members of the Japanese Embassy, although the enclosures are missing.

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. The letter from du Pont to John E. Hoey (1837-1896) concerns the transport of invalid seamen northfrom from the South Atlantic Bloackade Squadron.

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. He was the fourth child and second surviving son of Victor Marie du Pont (1767-1827) and his wife, Gabrielle Joséphine de la Fite de Pelleport (1770-1837). The letter from du Pont to Charles Wilkes (1798-1877) expresses regret over news of Wilkes being court-martialed.

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. The letter from du Pont to George H. Stuart (1816-1890) is declining an invitation to speak as a Navy representative at an anniversary celebration of the Christian Commission.

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. The letter from du Pont to Navy Officer, Gustavus Vasa Fox (1821-1883) discusses the possibility of saltpeter shortage in the Union in the early years of the Civil War.

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. He was the fourth child and second surviving son of Victor Marie du Pont (1767-1827) and his wife, Gabrielle Joséphine de la Fite de Pelleport (1770-1837). The letter to John A. Dahlgren (1809-1870) is seeking his opinion in regard to a small steam cutter, Altheron, available for purchase.

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. The letter to Major General David Hunter (1802-1886) asks for permission to see three deserters from the Confederate States Navy.

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. He was the fourth child and second surviving son of Victor Marie du Pont (1767-1827) and his wife, Gabrielle Joséphine de la Fite de Pelleport (1770-1837). The letter from du Pont to R.C. Winthrop (1809-1894) includes an invitation to visit.

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. He was the fourth child and second surviving son of Victor Marie du Pont (1767-1827) and his wife, Gabrielle Joséphine de la Fite de Pelleport (1770-1837). The letter from du Pont to Theodore Sedwick (1811-1859) concerning administrative arrangements for an exhibit du Pont was superintendent at the World's Fair in New York.

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. He was the fourth child and second surviving son of Victor Marie du Pont (1767-1827) and his wife, Gabrielle Joséphine de la Fite de Pelleport (1770-1837). The collection contains two letters written to Oscar B. Sawyer (1838-1887) and Ben Perley Poore (1820-1887).

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. He was the fourth child and second surviving son of Victor Marie du Pont (1767-1827) and his wife, Gabrielle Joséphine de la Fite de Pelleport (1770-1837). These five photocopied letters are related to his term in the Navy, four from his time in the Pacific, and one dealing with the South Atlantic blockade during the Civil War.

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. Andrew Hull Foote (1806-1863) was a Rear-Admiral in the United States Navy and fought in the Civil War and contributed to several naval reforms prior to the war. This collection consists of two letters, one from Samuel Francis du Pont to Foote in regards forwarding misdirected mail, as both were commanding ships in the China Sea. The second letter is from du Pont's father to a Naval Officer about Samuel Francis du Pont's experience aboard a ship.

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. He was the fourth child and second surviving son of Victor Marie du Pont (1767-1827) and his wife, Gabrielle Joséphine de la Fite de Pelleport (1770-1837). These three photocopy letters are related to his term in the Navy, one from his early career in 1820 and two letters from 1863 during the Civil War.

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. He was the fourth child and second surviving son of Victor Marie du Pont (1767-1827) and his wife, Gabrielle Joséphine de la Fite de Pelleport (1770-1837). The collection contains an original letter and photocopies of letters regarding cost for Abraham Hart (1810-1885) publishing an essay by Henry Winter Davis (1817-1865) on the doctrine of intervention and non-intervention in diplomacy and international affairs.

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. He was the fourth child and second surviving son of Victor Marie du Pont (1767-1827) and his wife, Gabrielle Joséphine de la Fite de Pelleport (1770-1837). The two letters from du Pont to Charles G. Halpine (1829-1868) are written during the Civil War and relate to ironclads and the evacuation of Charleston, South Carolina.