Sophie Madeleine du Pont (1810-1888) was the youngest daughter of Eleuthère Irénée du Pont (1771-1834), founder of E.I. du Pont de Nemours & Co., and Sophie Madeleine Dalmas du Pont (1775-1828), and the wife of Samuel Francis du Pont (1803-1865). In the letter to Mary Ann (Hogg) Brunot (1822-1899), du Pont thanks her for a sermon Brunot sent and reflects du Pont's concern with religious and domestic matters.

Sophie Madeleine du Pont (1810-1888) was the youngest daughter of Eleuthère Irénée du Pont (1771-1834), founder of E.I. du Pont de Nemours & Co., and Sophie Madeleine Dalmas du Pont (1775-1828), and the wife of Samuel Francis du Pont (1803-1865). The letter from du Pont to Theophilus Parsons Chandler (1807-1887) concerns her trip to White Sulphur Springs, Virginia, with her husband Eliza J. Schlatter (1809-1892).

Sophie Madeleine du Pont (1810-1888) was the youngest daughter of Eleuthère Irénée du Pont (1771-1834), founder of E.I. du Pont de Nemours & Co., and Sophie Madeleine Dalmas du Pont (1775-1828), and the wife of Samuel Francis du Pont (1803-1865). The two letters to Henry Ferris (1855-1941), a printer in Wilmington, Delaware, concern a religious tract and a subscription to the Wilmington Weekly.

William Corbit Spruance (1873-1935) was an electrical engineer and Vice President in Charge of Production at E.I. du Pont de Nemours & Company. His wife, Alice Moore Lea Spruance (1876-1967), was a member of a Wilmington, Delaware, flour-milling dynasty. Spruance family miscellany contains threes letters, two regarding a forestry bill and one a thank you letter. Additionally, there are two copies of a newspaper article titled "This was the Civil War".

The Spruance family was a well-known family in Delaware. The family includes Senator Presley Spruance (1785-1863), Judge William C. Spruance (1831-1913), William Spruance (1873-1935), among many others. The collection includes material related to the genealogy of the Spruance family of Delaware, particularly correspondence from and to members of the Spruance family regarding their genealogy and the book compiled by William Spruance, The Spruance family in Delaware, 1733-1933.

The collection consists of correspondence, legal papers, notebooks, and memorabilia relating to the Tallman family, although the bulk of materials pertain to Frank Gifford Tallman.

Thomas H. Savery (1837-1910) was president of Pusey, Jones and Company, a shipbuilder and papermaking machinery manufacturer in the late nineteenth and early twentieth centuries. In 1864 he married Sarah Pim Savery (1837-1928). This collection consists of ther business and personal papers of Thomas H. Savery, primarily related to his papermaking machinery ventures, and twenty-nine diaries of Sarah Pim Savery.

The majority of the records for the parent company consist of correspondence, both incoming and outgoing, primarily generated by or for company officers and/or directors.

This series consists of 40 items, mostly personal letters written on hotel stationery, dating from 1883-1930s. Box 164

Most correspondents are represented by several letters. The unique experience of travel is chronicled in these descriptive communications. There is even a poem called “Ballad of a Bellboy” from the Yellowstone Park Hotel. The recipients must have valued receiving these letters, as they were presumably saved for posterity, before they likely ended up in an antique store or flea market.

The United Air Lines series includes correspondence, mainly between Thompson and President W.A. Patterson dealing with everyday issues concerning the industry and the airline in particular. Also included are sample publications, general policy, and management information manuals, Public Relations Department memorandums, and a brief from a 1943 court case over the bidding rules for air mail contracts.

Victor Marie du Pont (1767-1827) was a French diplomat. In 1794, he married Gabrielle Joséphine de La Fite de Pelleport (1770-1837), and a year later they came to the United States, where he was appointed as consul at Charleston, South Carolina. They returned to France in 1798, but came back to the United States in 1800 with their children; his father, Pierre Samuel du Pont de Nemours (1739-1817); and his younger brother, Éleuthère Irénée du Pont (1771-1834), and his family. Victor and Joséphine du Pont had five children, four surviving to adulthood: Amelia Elizabeth (1796-1869), Charles Irénée (1797-1869), Samuel Francis (1803-1865), and Julia Sophie (1806-1882). (The papers of Samuel Francis Du Pont, husband of Sophie Madeleine Du Pont, are held in Group IX of the Winterthur Manuscripts.) The collection is arranged into three series: Amelia du Pont papers, Charles Irénée du Pont and his wives' papers, and Julia (du Pont) Shubrick and her husband, Irvine Shubrick papers. The papers consist primarily of personal correspondence with family and friends.

Victorine Elizabeth du Pont (1825-1887) was the daughter 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), and the wife of Peter Kemble (1825-1887). Her papers contain miscellaneous material related to the du Pont family, including bills for her trousseau, autograph album, and correspondence from her mother, daughter, and grandson.

Wallace Hume Carothers (1896-1937) was a chemist and inventor of neoprene artificial rubber and nylon synthetic fiber. He worked as a chemist in E.I. du Pont de Nemours & Company's Fundamental Research Program from 1928 until his death in 1937. John Raven Johnson (1900-1988) was a professor of chemistry at Cornell University from 1930 until his retirement in 1965. He also served as a consultant to E.I. du Pont de Nemours & Company from 1937 until 1951, where he worked for the Organic Chemicals Department. This collection consists of a single short note from Carothers to Johnson thanking him for his recent hospitality.

Wallace Hume Carothers (1896-1937) was a chemist and inventor of Neoprene artificial rubber and Nylon synthetic fiber. He worked as a chemist in E.I. du Pont de Nemours & Company's Fundamental Research Program from 1928 until his death in 1937. From 1915 to 1920, he attended Tarkio College in Missouri as a science major. This collection of Carothers' letters was written to and preserved by a close friend, Wilko Gustav Machentanz (1895-1973), with whom Carothers roomed for two of his years at Tarkio. The bulk of the letters were written between 1917 and 1922, before Carothers became absorbed in his doctoral studies, although the two corresponded as late as 1936.

Wallace Hume Carothers (1896-1937) was a chemist and inventor of Neoprene artificial rubber and Nylon synthetic fiber. He worked as a chemist in E.I. du Pont de Nemours & Company's Fundamental Research Program from 1928 until his death in 1937. This collection consists of photocopies of fourteen letters written by Carothers to his former college girlfriend from Missouri, Frances Gelvin Spencer, between 1929 and 1933. The nature of the letters is almost entirely personal.

Walter S. Carpenter, Jr. (1888-1976) was an industrialist, philanthropist, and former President and Chairman of E.I. du Pont de Nemours & Company, a chemical company more commonly referred to as the DuPont company. This collection of personal papers of Carpenter, Jr. consists primarily of letters to family, friends, and business associates, as well as financial information records. The papers date from 1916 to 1976.

Wilhelmina du Pont (1906-2000) was the daughter of William K. du Pont (1875-1907) and Ethel Hallock (1876-1951), a fourth generation descendent from E.I. du Pont (1771-1834). The letters are to Wilhelmina du Pont from her cousin Alice (Belin) (Mrs. Pierre S. du Pont) (1872-1944); mother Ethel (Mrs. William Kemble du Pont); cousin Alice (du Pont) (Mrs. T. Coleman du Pont) (1863-1937); and uncle Pierre S. du Pont (1870-1954).

William Branford Shubrick (1790-1874) was an officer in the U.S. Navy and served from 1806 to 1861, including service in the War of 1812, the Mexican-American War, and retired in the early months of the Civil War. The collection includes letters to Shubrick from Charles Henry Davis (1807-1877) and Samuel Francis du Pont (1803-1865) in appreciation of his naval services.

William Spruance (1873-1935) was an electrical engineer and corporate officer in the DuPont Company. The collection contains letters about shares in the E.I. du Pont de Nemours Powder Company awarded under the company's bonus system.

William Deas (1768-1806) was a merchant in Philadelphia, Pennsylvania. Initially, Deas was in a partnership with David Knox (dates unknown) and James Henderson (1756-1801) Knox, Henderson, and Co., which formed in 1796. After that partnership was dissolved, William Deas and David Knox formed a new partnership, Knox and Deas, located at 30 Front Street in Philadelphia. The business imported and sold textiles and garment-making items as well as dry goods and other things. This collection consists of a letterbook of approximately 175 pages of business transactions from William Deas to his business partner, English merchant David Knox, from 1800 to 1803 inclusively.

William du Pont, Sr. (1855-1928) was an industrialist and member of the prominent du Pont family of Delaware, whose family business was the E.I. du Pont de Nemours & Company, also known as the DuPont Company which was a large manufacturer of gunpowder. He worked for the first DuPont dynamite manufacturer, Repauno Chemical Company, as secretary and treasurer (1880-1884) and after the tragic death of Lammot du Pont (1831-1884), as president (1884-1892). William du Pont, Jr. was the youngest child of du Pont, Sr. and Annie Rogers Zinn du Pont (1858-1827). Du Pont Jr. became the president of Delaware Trust Company in 1929, the youngest bank president in Wilmington at that time. In 1952, he became chairman of the board, retaining both positions until his death in 1965. The William du Pont family papers are organized into two record groups: William du Pont, Sr. papers and William du Pont, Jr. papers. The William du Pont, Sr. papers primarily encompass the years of his active business life from the early 1880s to his death in 1928. There are also some papers from his early life and after his death. The William du Pont, Jr. papers document areas of his activities predominantly concerned with land development in Wilmington, Delaware; farming, animal breeding and foxhunting in Delaware, Pennsylvania, Maryland and Virginia; and promotion of horse racing in the United States, especially in Delaware.

William du Pont (1855-1928) was an industrialist and member of the promienent du Pont family of Delaware, whose family business was the E.I. du Pont de Nemours & Company, also known as the DuPont Company which was a large manufacturer of gunpowder. He worked for the first DuPont dynamite manufacturer, Repauno Chemical Company, as secretary and treasurer (1880-1884) and after the tragic death of Lammot du Pont (1831-1884), as president (1884-1892). This small group of papers encompass both correspondence and various financial and investment accounts, largely covering his ten years spent in England after leaving the United States in 1893.

William F. Gardner (1840-1907) was a minister for the Episcopal Church. The letter is a general farewell upon being assigned to a new parish, urging his parrishoners to keep in the faith and look to the upkeep of the parish.

The collection primarily consists of newspaper clippings, telegrams, resolutions, and correspondence regarding Ramsay's death and funeral.

William Gouverneur Ramsay (1866-1916) trained as a civil engineer at the University of Virginia, finishing his course work in 1887. After a career working at various times in canal, railroad, chemical, dynamite, and coal industries, in 1903, Ramsay became Du Pont's chief engineer and directed the construction of many of the largest explosives factories in the United States. In 1916, Ramsay became a director and vice president of E.I. du Pont de Nemours & Company, in addition to retaining his position as chief engineer. The William G. Ramsay family correspondence comprises sixty-four letters. They are largely addressed to William himself, from a variety of interlocutors, but mostly members of his own family. The majority of the letters are written by women, and thus provide a powerful picture into women’s lives and roles in the Ramsay family at the turn of the century across the Eastern seaboard.

William H. Horstmann & Co. was a manufacturer and retailer of civilian and military equipment. The material is primarily receipts, a small amount of correspondence related to inspection of goods or contracts, and a newspaper clipping of an engraving of the Horstmann's Manufactory.

William H. Savery (1865-1949) was a paper manufacturer and president of the Harpers Ferry Paper Company, the Harpers Ferry Electic Light Company, and the Shenandoah Pulp Company. He was also president and general manager of the Parsons Engineering Company. The collection documents Savery's involvement with the Parsons Engineering Company, the York Haven and Harpers Ferry Paper Company from 1899 to 1920.

The Morris family of Philadelphia were brewers, merchants, land speculators, manufacturers, and prominent participants in public affairs. Their papers are primarily from Samuel and Isaac W. Morris. However, the collection includes papers from other family members from the first Anthony Morris to John Thompson Morris (1847-1915), the founder of the Morris Arboretum in Germantown. There are also papers from members of the Wistar, Paschall, and Mifflin families allied by marriage.

William Hilles Ward (1892-1961) was a chemist, who specialized in explosives serving in high positions at the E.I. du Pont de Nemours & Company and the Remington Arms Company, Inc. The collection includes press clippings, speeches, photographs of Ward and the DuPont Board of Directors, birth and death certificates for Ward and his wife Sophie Hodges Ward (1894-1968), obituaries and memorials.

William Sellers & Co. was an iron works that manufactured machine tools used for turning, planing, shaping, drilling, boring, or cutting metal or wood. The company was founded in 1848 as Bancroft & Sellers by mechanical engineers and inventors Edward Bancroft (1811-1855) and William Sellers (1824-1905). The records consist of five volumes, as well as correspondence from William Sellers and the Sellers firm.

William Young (1755-1829) was a Philadelphia bookseller and later a manufacturer at Rockland, Delaware. This item is a photocopy of letter of introduction from William Young to Charles and Victor du Pont for Frederick Rapp.

William Young (1755-1829) was a Philadelphia bookseller and later a manufacturer at Rockland, Delaware. Letters to Young regarding paper business, two ship bill of lading, and two legal documents on paper produced by Young.

The Wood family was founders of one of Philadelphia's great Quaker mercantile and manufacturing families, and within a couple of generations founded the Wawa Dairy Farms. The papers were primarily collected by Julianna Randolph (1810-1885), wife of Richard D. Wood (1799-1869), and include correspondence from Julianna Randolph, her parents Edward (1784-1834) and Mary Taylor Randolph (1790-1868), and her husband Richard Wood. The letters are almost entirely limited to correspondence within the Wood-Randolph kinship group.

Samuel Gardiner Wright (1781-1845) was a West Jersey Quaker merchant and ironmaster who conducted a wide-ranging mercantile business based in Philadelphia, iron furnaces in the New Jersey Pine Barrens and in southern Delaware and maintained a country house and farm in Monmouth County, N.J. The papers document his varied business interests, especially iron manufacture and sales. There are smaller quantities of papers from his wife, sons and grandson.

The Wurts family were involved in the anthracite coal industry. In 1823 four brothers: Maurice Wurts (1783-1854), William Wurts (1788-1858), Charles Stewart Wurts (1790–1859), and John Wurts (1792-1861) founded the Delaware and Hudson Canal Company originally to mine anthracite coal and transport the resource to New York. The company built the Delaware and Hudson Canal and later became the Delaware and Hudson Railway. The Wurts family papers were collected by John Sparhawk Wurts (1876-1958) and reflect both family papers and business records.

The Young and McAllister families were prominent families in the Associate Presbyterian community in Philadelphia. William Young (1755-1829) was a Philadelphia bookseller and later a manufacturer at Rockland, Delaware. John McAllister Jr. (1786-1877) ran the Philadelphia optical firm of that same name. This small collection of papers relate to the Young, McAllister, and Warner families. Approximately half of the material are correspondence from John Young, William Young, John McAllister Jr., and Joseph T. Warner; the other half are miscellaneous documents related to the families and businesses they were involved with including Rockland Manufacturing Company and McAllister Spectacle Company.