The DuPont Theatre, originally called The Playhouse, presents professional theatrical productions from Broadway and other notable venues in downtown Wilmington, Delaware since 1913. The Playhouse was the concept of three top executives of E.I. du Pont de Nemours & Company (DuPont Company) who realized that Wilmington needed a facility for cultural as well as business purposes. The DuPont Theatre records consist primarily of public relations and advertising materials related to the theater's operation. As such, they present a sequence of changing tastes in popular entertainment in a medium-sized American city.

DuPont, Washington, was built by E.I. du Pont de Nemours & Company for the purpose of housing employees of its dynamite plant. The collection includes papers on the history of DuPont, specifically the nomination to the National Register, along with copies of newspaper clippings, maps, and reports related to the nomination.

The Butterick Company produced sewing patterns used to make clothing, as well as numerous publications focused on fashion and home clothing design. The company began in 1863 with Ebenezer Butterick (1826–1903) a tailor from Sterling, Massachusetts and his wife Ellen August Pollard Butterick (1831-1871) when they invented the graded sewing pattern, which revolutionized the practice of home sewing. This item is a colorful print showing ladies and girls dresses along with two insets showing several types of hats. The fashions in the print reflect the winter 1876-1877 season.

Ervin George "E. G." Bailey (1880-1974) was a combustion engineer, inventor, and businessman. His personal papers include correspondence and articles on subjects relating to combustion engineering, and information about awards and honors Bailey received and conferences he participated in. Bailey's papers include copies of numerous speeches and publications on combustion engineering and engineering education.

Peter Bauduy (1769?-1833) and E.I. du Pont (1771-1834) were partners in several business ventures together, including Du Pont, Bauduy, & Co., a textile manufacturing firm and E.I. du Pont de Nemours & Company. The collection includes an official certified copy of the articles of agreement between Bauduy and du Pont, forming a partnership for the powder manufacturing company that would become E.I. du Pont de Nemours & Company.

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 Eleuthère Irénée du Pont (1771-1834). DuPont Luxembourg was founded in 1962 and is one of the largest investments the DuPont Company has made in Europe. These photographs document interior and exterior views of construction at a DuPont Tyvek plant in Luxembourg.

The Savannah River Plant manufactured basic materials required in the production of nuclear weapons, specifically plutonium and tritium. The complex was comprised of five reactors, two chemical separation plants, a heavy water extraction plant, nuclear fuel, and target fabrication facility, a tritium extraction facility, and waste management facilities. The E. I. du Pont de Nemours and Company, Atomic Energy Division records are an expansive and rich collection of materials that document the DuPont Company’s involvement in the Manhattan Project and the company’s continued role in the United States government’s exploration of atomic power and weaponry.

E.I. du Pont de Nemours & Company was established in 1802 by Pierre Samuel du Pont de Nemours (1739-1817) and his son Éleuthère Irénée du Pont (1771-1834). In 1903 the DuPont Company's Executive Committee established the Experimental Station, a research facility located on the banks of the Brandywine Creek across from DuPont's first black powder works. This collection contains photographs of general views of the Experimental Station showing its growth over time.

The Hanford Engineer Works in Hanford, Washington, was constructed between 1943 and 1945 to create the plutonium 239 and uranium 235 used in the atomic weapons needed for World War II. Sponsored by the Army Corps of Engineers, E.I. du Pont de Nemours & Company acted as the prime contractor. This collection contains two captioned albums, one of the Medical Division between 1943 and 1945, and the other of Hanford Yuletide Carnival in 1943. The films are various format copies of "War construction in the desert", created to document the building and running of the Hanford Engineer Works. Also included is a film of African American workers dancing in one of the mess halls and a farewell party of DuPont executives in 1948.

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 Eleuthère Irénée du Pont (1771-1834) the company began with the production of gunpowder. This collection consists of photographs that document two separate activities. First grouping shows a nyalite (and explosive) outdoor safety demonstration (1905) probably conducted in the Hagley powder yards.

The Wilmington Shops were preceded by the first DuPont Company machine shop facilities on the Brandywine River. This is a collection of photographs from the DuPont's Company Wilmington Shops, a large machine shop that produced specialized equipment which was used in DuPont Company plants. A few of the images show the interior of the shops, but the majority picture individual machines

What became known as the Yerkes plant in Buffalo, New York of the E.I. du Pont de Nemours & Company began as the DuPont Fibersilk Company in 1920, a joint venture between DuPont and a French textile company, Comptoir des Textiles Artificiels, created to produce artificial silk. In 1923, the two companies formed a second joint venture to produce cellophane at the site. DuPont bought the French interests in both companies in March 1928. This collection from the Yerkes plant consists of various publications, cellophane samples, employee magazines, and a scrapbook about the live broadcast from Buffalo of an episode of the radio program Cavalcade of America, entitled The Oath, based on the life of Millard Fillmore.

E.I. du Pont de Nemours Powder Company was incorporated on May 19, 1903. It was organized as an operating company to consolidate approximately 100 explosives manufacturers controlled by E.I. du Pont de Nemours & Co. This collection is a series of six advertising cards for E. I. du Pont de Nemours Powder Company's smokeless powders for shotguns (DuPont smokeless; Hazard smokeless; New E.C. Improved; New Schultze; Infallible smokeless) and black sporting powders (DuPont Rifle; Hazard Kentucky Rifle; L. & R. Orange Extra Sporting).

E. Paul du Pont (1887-1950) established Du Pont Motors, Inc., a manufacturing company of luxury automobiles, in 1919 in Wilmington, Delaware. He worked for a short time at the family business, E.I. du Pont de Nemours & Company which manufactured gunpowder. He was one of ten children of Francis Gurney du Pont (1850-1904) and Eliza Wigfa Simons du Pont (1849-1919). This small collection contains photographs of DuPont powder yards; family photographs; home exteriors; and postcard views of Longwood Gardens.

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.

E. Paul du Pont (1887-1950), the son of Francis Gurney du Pont (1850-1905) and Elise Simons du Pont (1849-1919), is best known as the manufacturer of the Du Pont automobile. He owned the house Squirrel Run Hill, the former Second Office of E.I. du Pont de Nemours & Company, and the surrounding grounds. This small collection includes papers relating to additions and alterations to Squirrel Run Hill and papers relating to the estates of his parents.

Hercules Inc. was a manufacturer of chemicals and munitions based in Wilmington, Delaware. Earl R. Fenstermacher (1894-1984) was the superintendent of the Columbus plant in Kansas. This item is a bound volume containing two typescripts written by Fenstermacher describing the manufacture and operating procedures at the company.

Earle E. Coleman (1925-2009) was the head of imprints cataloguing at Eleutherian Mills Historical Library. The typescript bibliogrpahy includes collaborative works, English translations, and items in published compilations of papers. Most of the titles and information are in French.

The Eastern Advertising Company installed and maintained advertising cards in streetcars in the major cities of New England, particularly on behalf of local merchants carrying national or regional brands. The report contains an analysis of sales of Laco castile soap versus competing brands in drugstores in New England cities.

Eastern Air Lines operated from 1927 to 1991 and was one of the Big Four airlines (others included United, Delta, and American) that for almost fifty years dominated commercial airline travel in the United States. This item is a postcard with the illustration of Eastern's Modern DC-4 Silverliner airplane.

The Eastern Store Fixtures Corporation was a manufacturer, supplier, and designer of fixtures and interiors for commercial establishments. The company was founded in or around 1953 by Louis Deitz (1919-2007) and was located at 19-21 South Orange Avenue in Newark, New Jersey. This collection consists of fifty one photographic prints showing soda fountains and store interiors presumably installed or supplied by the corporation.

E.B. (Edward Barnes) “Ted” Leisenring Jr. (1926-2011) was the CEO of a fourth-generation family coal-mining business. He was president of Westmoreland Coal from 1961 to 1988, and remained as chairman of the board until 1992. This collection consists of the Philadelphia corporate executive's business and personal papers and his immediate family, with estate papers of his father, mother and paternal grandfather.

E.B. (Edward Barnes) “Ted” Leisenring Jr. (1926-2011) was the CEO of a fourth-generation family coal-mining business. He was president of Westmoreland Coal from 1961 to 1988, and remained as chairman of the board until 1992. This small collection of photographs is from Leisenring’s personal office files, which date between 1954 and 1994. The photographs consist of group and individual portraits, snapshots. The bulk of the material centers around two events: the 1964 Westmoreland Coal Company expansion and the 1970 delegation to the USSR.

The firm of E.C. Beetem & Co. was established in 1901, incorporated as E.C. Beetem & Son, Inc. in 1923, and for a time was one of the leading carpet manufacturers in the United States. The company employed women in the finishing and materials departments, in the office, and at home assembling rag rugs; men were employed as weavers. This collection includes administrative records, correspondence with customers, selling agents, and rag dealers which document marketing strategies and pricing. Also included in this collection are some samples and drawings of rug patterns.

Longwood Gardens is a series of formal display gardens in Kennett Square, Pennsylvania, that was developed by Pierre S. du Pont (1870-1954) after he purchased the site from the Peirce family in 1906. The collection is comprised of two oral history interview projects. The first is with Eddie Dowling (1889-1976), an actor, screenwriter, playwright, director, producer, songwriter, and composer. The second project is commissioned oral histories with people with remembrances of du Pont and the development of Longwood Gardens.

Eddie W. Foote (1858-1932) was a correspondent for Hartford and Springfield newspapers. In 1876, he visited the Centennial Exposition at Philadelphia, after which he wrote a memoir about it as well as a visit to Newport.

The Edge Moor Iron Company engaged in the manufacture of iron and steel bridges at a plant located on the Delaware River north of Wilmington. The collection is comprised of a limited selection of documents, primarily connected to the liquidation of the company in 1936. It includes plant and property maps, clippings, and deeds and titles covering the property.

The Edison Electric Institute is the trade association of the electric utility industry. The minutes of the Institute's Transmission and Distributing Committee (1935, 1941-1970) include both business transactions of the committee and professional papers of representatives of member utility companies on a variety of subjects related to the transmission and distribution of electricty.

Edith Marion DeBlois (1920-2000) was a native Canadian with an interest in foreign travel and a season pass to the Expo 67. Expo 67 was an international exposition that took place in in Montréal, Québec from April 27 to October 29, 1967 to celebrate Canada's centennial. The theme was "Man and his World." These materials were collected by DeBlois while attending Expo 67. This small collection includes many of the official guides and maps issued by the fair, as well as specialized pamphlets dealing with particular themes or exhibits. DeBlois also compiled a series of scrapbooks documenting her attendance at various exhibits and performances.

Edith N. McConnell (1880-1968) was a confectioner and caterer in Wilmington, Delaware from the 1920s through the 1950s. The records consist of a three ledgers, containing business expenses and customer account books dating from 1937 to 1945, and from 1955 to 1956.

This collection consists of a single mimeographed copy of a letter from consumer Edna R. White (1901-1965) of Houston, Texas, to the Aughinbaugh Canning Co. of Biloxi, Mississippi. It includes extensive racist content.

Edward Graham Jefferson (1921-2006) was a research chemist and chief executive officer of E.I. du Pont de Nemours & Company. Jefferson's papers consist of his "personal" business files, and do not include his official correspondence as CEO of the DuPont Company. The papers primarily reflect Jefferson's "Head of State" role at DuPont and his membership on the boards of numerous business, trade, and educational organizations. The papers have been arranged in three series: DuPont Company and personal activities, Outside board memberships, and Speeches.

Edward Henry Kemp (1868-1948) and Josephine A. Kemp (1868-1941) were commercial photographers and traveling lecturers. The Kemps were best known for their photographic and motion picture travelogues, as well as their work in Camera Craft magazine. In 1912, the Chamber of Commerce invited its members to join an excursion to the Isthmus of Panama, with the San Francisco Chamber of Commerce being the guide in charge of the trip and planning. The San Francisco Chamber chartered the SS Sonoma of the Oceanic Steamship Company from April 25, 1912, to return on May 21, 1912. The album is a travelogue of the SS Sonoma voyage from San Francisco to the construction site of the Panama Canal locks. The images show views of railroad construction, dredges, street views of Balboa, Panama la Vieja, bull fights, and Old Panama City. The album itself does not contain either Kemp's name or other identifying information, however, three of the photographs in the album match photographs that have been positively identified as being taken by the Kemps.

The major portion of a collection of railroad public and employee timetables amassed by railroad enthusiast and historian Edward H. Weber (1934-), best known for his systematic photography of railroad stations and structures. Although the oldest date from the nineteenth century, most cover the period of decline and restructuring of North American passenger service that began in the Depression and accelerated in the years after World War II.

Edward J. Nossen (1930-2016) was an engineer in the Radio Corporation of America's Government Systems Division at Camden, New Jersey. He invented a range-determining system that can rescue air craft. The Radio Corporation of America (renamed RCA Corporation in 1969) was best known for its pioneering radio and television development and manufacturing. In addition to consumer electronics, RCA was a major player in the development of electronics for industrial and military applications. This small collection consists of contract proposals and technical reports that were mostly submitted by RCA Government Systems Division, Camden. The proposals have Nossen's name written on the cover. The proposals and reports relate to communication systems being developed between 1964 and 1990.

Edward James Shimer Seal (1896-1955) was a farmer and photographer in Chester County, Pennsylvania. This collection contains over 300 photograph prints taken primarily by Seal of Chadds Ford, Pennsylvania, during the first half of the twentieth century. Many of these images offer a glimpse into family and town life in Chadds Ford and Wilmington, Delaware, during the 1920s and 1930s, featuring Seal family members, friends, neighbors, and employees. Other subjects include the 1939 World's Fair in New York, the artists N.C. and Andrew Wyeth, and local bridges and roads.

Edward M. Harrington (1866-1933) was a chemist and expert on blasting cap design. He held several positions at the Aetna Powder Company, eventually becoming superintendent of the dynamite works at Aetna, Indiana. Harrington then went on to work for the DuPont Company at various plants in the Operating Department until his retirement in 1921. Images in this collection are of dynamite and other explosive plants, including Aetna Powder Company plants in Newport, Rhode Island (electric blasting caps) and Aetna, Indiana, and DuPont Company plants in Repauno, New Jersey; Hopwell, Virginia, and many other locations. Photographs show buildings, office and plant interiors, many with workers, employee groups, housing, and recreation.

Edward “Ned” A. Hodge (1896-1978) was the Vice-President of the Pusey & Jones Corp. in charge of engineering and shipbuilding. This small collection consists primarily of photographs showing the exteriors of ships. There are two books which document ship voyages showing photographs alongside text.

Edward R. Stickel (1928-2008) worked for the Penn Central Transportation Company, Amtrak, and Southeastern Pennsylvania Transportation Authority (SEPTA). His collection consists of copies of official documents relating to the commuter rail operations of SEPTA and its predecessors.

Edwin A. Gee (1920-2013) was trained as a chemical engineer and worked as a metallurgist for the United States Bureau of Mines before joining the DuPont Company in 1948. The papers of Edwin A. Gee are incomplete and represent only a small portion of his work in the Development Department and as a member of the Executive Committee. The surviving records have been arranged in two series that document Gee's involvement in important phases of the company's history: Patent documentation and Diversification and research and development strategy.

Edwin R. Manchester (1885-1954) was editor of DuPont Magazine for thirty years from December 1920 until his retirement in 1950. He joined the DuPont Company in 1918 on a special World War I assignment and became associate editor of DuPont Magazine in August 1919. Manchester's papers provide an indication of the role company magazines played in the advertising strategy of large companies in the first half of the twentieth century. The small collection primarily comprises office files from Manchester's decades as editor of DuPont Magazine within the Advertising Department, although there are a few publications from the Tippecanoe Securities Company, for which Manchester worked prior to joining DuPont.

Peter Bauduy (1769?-1833) and E.I. du Pont (1771-1834) were partners in several business ventures together, including Du Pont, Bauduy, & Co. (a textile manufacturing firm) and E.I. du Pont de Nemours & Company. The collection contains photocopied notes from Judge Jacob Stout (1765-1855) made during an appeal in the case of E.I. du Pont and Victor du Pont v. Peter Bauduy, et al., cocnerning the sale of certain mill seats on the Brandywine River near Wilmington.

The Louviers dynamite works began production in 1908 and provided explosives primarily for mines in the region. The panoramic photograph shows a view of the DuPont Company dynamite works at Louviers, Colorado, including the magazine area, powder line, and overall view.

The Jackson Laboratory and the Technical Laboratory was established by E.I. du Pont de Nemours & Company at its Deepwater, New Jersey, in 1917 and 1920 respectively to manufacture and research dyes. This collection consists of two panoramic photographs of exteriors of the laboratories.

The Neoprene B plant was located at DuPont's Deepwater Point, New Jersey site, which was later named the Chambers Works. This collection consists of three panoramic photographs showing the construction of the Neoprene B plant.

The War Department of the United States Government contracted with the DuPont Company to build and run a smokeless powder plant called the Old Hickory plant on the Cumberland River near Nashville, Tennessee during World War I. These panoramic photographs show overall views of DuPont Company's Old Hickory smokeless powder plant, also views of exterior and interior details.

The DuPont Company acquired a site on the York River in Virginia on which they planned to build a dynamite plant. The U.S. Government took over the property in 1918 and got the DuPont Company to build a shell loading plant instead. These three panoramic photographs show overall views of the shell loading plant at Penniman, Virginia during World War I.

In 1902 the DuPont Company acquired the Smith Electric Fuze Company and some other properties in the Pompton Lakes, New Jersey area. DuPont continued the manufacture of fuses, blasting caps, and other blasting supplies at the plant, adding a shell plant and other facilities. One panoramic photograph shows an overview of the DuPont Company plant at Pompton Lakes, New Jersey, 1918, and the other is a group portrait of staff, August 25, 1943.

In 1918, the company opened an additional plant in Racine, Wisconsin to increase the production of smokeless powder to meet the growing demand in order to support the war effort. This panoramic photograph shows a group of engineers outside of the plant.

In 1927 the DuPont Company constructed a plant to manufacture viscose rayon. This panoramic photograph depicts an overview of the DuPont Company's Spruance Plant in Richmond, Virginia.