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Showing Results: 1 - 50 of 351581
Abstract: James F. Allee Jr. (1884-1956), was a lawyer and publisher from Dover, in Kent County, Delaware. This collection contains six photographic prints from the J.F. Allee papers.
Dates: circa 1900
Abstract: Contains photographic prints from a family who once resided in Laurel, Delaware.
Dates: circa 1860
Abstract: Francis I. du Pont (1873-1942) was a chemist, inventor, and stockbroker most celebrated for his involvement with the partnership of Francis I. du Pont and Company, stockbrokers in New York, and the Delaware Chemical Engineering Company in Wilmington. This collection contains a color photograph of a portrait of Francis I. du Pont painted by Gordon Stevenson (1892-1984).
Found in: Audiovisual Collections > John W. Macklem collection of DuPont Company powder yards photographs
Abstract: John W. Macklem (1867-1948) began working for E.I. du Pont de Nemours & Company as an errand boy at a young age and remained with the company his entire career. E.I. du Pont de Nemours & Company is a chemical company more commonly referred to as the DuPont company. This collection comprises photographs of buildings and scenes in DuPont Company explosives manufacturing plants along the Brandywine Creek near Wilmington, Delaware, including the Eleutherian Mills (or Upper) yard, the Upper Hagley yard, and the Lower Hagley yard.
Found in: Audiovisual Collections > The War Between the U.S. and Mexico Illustrated copy photographs
Abstract: This collection contains photographic prints of illustrations from George Wilkins Kendall's The War between the United States and Mexico, a publication from 1851.
Abstract: Marguerite du Pont Lee (1862-1936) was a descendant of Pierre Samuel du Pont de Nemours (1739-1817) who founded the E.I. du Pont de Nemours & Company with his son Eleuthere Irenee du Pont (1771-1834) in 1802. The E.I. du Pont de Nemours & Company is a chemical company more commonly referred to as the DuPont Company. This small collection consists of four items belonging to Marguerite du Pont Lee. Two individual portraits, a photograph of a gate, and a decorative leaf.
Abstract: Edith N. McConnell (1880-1968) was a confectioner and caterer in Wilmington, Delaware from the 1920s through the 1950s. This small collection consists of photographs of wedding cakes, table settings, and restaurant interiors in Wilmington and Newark, Delaware, mostly dating from around 1945.
Dates: circa 1925-1946
Abstract: John Farrell Metten (1873-1968) was a marine engineer and shipbuilding industry executive. This collection contains photographic prints, postcards, documents, drawings, and an identification card pertaining to the career of John Farrell Metten and views of Naval ships built at the New York Shipbuilding Company, Camden, New Jersey.
Dates: circa 1930s
Abstract: The Jackson and Sharp Company, a manufacturer of railroad passenger cars, was incorporated in Delaware on February 24, 1869, as the successor to the partnership of Jackson & Sharp. This collection contains copy photographic prints of the company plant.
Dates: before 1902
Collection — Box: GL 2
Abstract: Regulator, or pendulum, clocks were commonplace within domestic settings during the eighteenth and nineteenth centuries. This collection contains photographic prints of different style regulator clocks photographed in an unknown antique shop.
Dates: circa 1870
Abstract: This collection includes four copy photographic prints of Rowe family photographs, featuring large group portraits in unidentified settings, presumably the Village of Henry Clay area.
Dates: circa 1920s
Abstract: 170 Breck's Lane was owned by William Winder "Chick” Laird, Jr. (1910-1989) and served as workers' housing. Laird was the director of E. I. du Pont de Nemours and a financial advisor, starting his own brokerage firm in Wilmington, Delaware. This collection contains twenty photographic prints of various interior and exterior architectural views of 170 Breck's Lane before architectural rennovations by the owner.
Dates: circa 1820
Abstract: Le jardin des Plantes remains one of France's premier botanical gardens. This collection contains 1 lithograph color print and 2 photographic b&w prints featuring an aerial view of le Jardin des Plantes in Paris, France.
Dates: circa 1860
Abstract: E.I. du Pont de Nemours & Company is a chemical company more commonly referred to as the DuPont company. The DuPont Company's Carney's Point plant began manufacturing guncotton and smokeless powder in 1892. Francis “Frank” Pierre Gentieu (1876-1950) was a ballistic Engineer at Carney's Point from 1901 to 1941. On October 10 1925, a military, civic and industry party parade concluded a three-day celebration of the 250th anniversary of the founding of Salem, New Jersey. This collection features two photographs of the DuPont Smokeless Powder Works float entered in the 250th Anniversary parade in Salem, New Jersey.
Abstract: Hoopes Brothers & Darlington began in West Chester in 1867 manufacturing wooden spokes for wheels. By the eighteen-eighties it was one of the largest wooden wheel makers in the country. This collection contains photographs which show the steps involved in the making of wooden wheels from the delivery of the logs to the finished project.
Abstract: Carolyn Mann Irving (1891-1987) was the wife of Evelyn du Pont Irving (1886-1968), nephew and one of the heirs of the prominent author Washington Irving's estate. The collection consists of forty-two prints (engravings or lithographs) and two photographic prints which were collected by Carolyn M. Irving. Subjects include animals; Andrew Jackson political cartoons; battle and war images; du Pont related images; European landscapes, town scenes and cathedrals; fashion and religious images.
Dates: circa 1700-1918
Abstract: E. Sachse & Company was a nineteenth century printing company located in Baltimore, Maryland. This item is a color lithograph of an overview of Wilmington, Delaware, looking north from south of the Christiana River.
Dates: circa 1865
Found in: Audiovisual Collections > York Oil Burner Company's industrial oil burning equipment album
Abstract: The York Oil Burner Company was a manufacturer of oil-fired residential and commercial oil heating equipment. This collection consists of one album containing 80 black & white photographic prints of industrial equipment of the York Oil Burner Co., Inc. Many of the photographs are interior views of building basements showing York Oil Burner Co. equipment installed in the building's furnace system.
Dates: circa 1936
Abstract: Cazenove Gardner Lee, Jr. (1882-1945) was a genealogist and prolific writer, who founded the Society of Lees of Virginia. This collection conists of photographs and negatives relating to family and career of Cazenove Gardner Lee, Jr. The images are primarily of various gunpowder mills and machinery.
Dates: circa 1900-1925
Abstract: The pulp keg mill was built around 1904 to manufacture an experimental design of black and smokeless powder container made essentially from paper. This album contains photographic prints of the construction of the pulp keg mill in the Hagley Yard of E.I. du Pont de Nemours & Co. near Wilmington, Delaware around 1902 through 1905.
Dates: circa 1902-1905
Abstract: Morgan Paper Company plant manufactured tissue paper. The plant located in Lititz, Pennsylvania was built by John H. Wickersham Engineering and Construction Company. The collection contains four photographic prints of Morgan Paper Company plant.
Dates: circa 1930
Abstract: E.I. du Pont de Nemours & Company was established as a black powder manufacturer in 1802 by Pierre Samuel du Pont de Nemours (1739-1817) and his son Eleuthère Irénée du Pont (1771-1834). The du Pont’s purchased a mill site on the banks of the Brandywine River just North of Wilmington, Delaware. This collection contains nineteen photographs of DuPont Company explosives plants, including Hagley Yard, Eleutherian Mills yard, possibly Wapwallopen, and the Pennsylvania plant.
Dates: circa 1900
E.I. du Pont de Nemours & Company, Inc., Carney's Point Works and workers housing panoramic photographs
Found in: Audiovisual Collections > E.I. du Pont de Nemours & Company, Inc., Carney's Point Works and workers housing panoramic photographs
Abstract: The DuPont Company purchased the land for a smokeless powder plant at Carney's Point, New Jersey (across the Delaware River from Wilmington, Delaware) in 1890. In 1892 it produced its first guncotton, and then the first smokeless powder. This collection consists of twenty panoramic photographs of Carney's Point smokeless powder plant, including exteriors of various buildings and groups of workers.
Found in: Audiovisual Collections > E.I. du Pont de Nemours & Co., Inc., Parlin, New Jersey plant panoramic photographs
Abstract: In 1904 the DuPont Company purchased the International Smokeless Powder and Chemical Company, which was then producing smokeless powder and nitrocellulose products in their plant in Parlin, New Jersey. This collection consists of seven panormaic photographs that show views of the Parlin, New Jersey plant, including views of production facilities and worker housing.
Dates: 1918; 1925
Found in: Audiovisual Collections > E.I. du Pont de Nemours & Co., Inc. Deepwater Point Works panoramic photographs
Abstract: The DuPont Company constructed a dye works at Deepwater Point, New Jersey (also called just Deepwater, New Jersey) during World War I to enter the market for dyes left vacant by Germany's absence. This collection consists of fifteen panomaric photographs of views of the Deepwater Point, New Jersey dye works of the DuPont Company, including ground before building started, building exteriors, and a group portrait of employees of the Jackson Laboratory.
Found in: Audiovisual Collections > E.I. du Pont de Nemours & Co., Inc. Haskell Works panoramic photographs
Abstract: In 1902, DuPont took control of Laflin & Rand, including the Haskell Works. Infallible and Ballistite powders were manufactured there. The works played an important role in smokeless powder production during World War I. The panoramic photographs depict views of the Du Pont Company's smokeless powder works in Haskell, New Jersey and the workers village nearby.
Dates: circa 1920
Found in: Audiovisual Collections > E.I. du Pont de Nemours & Co., Inc. Repauno Works panoramic photographs
Abstract: E.I. du Pont de Nemours & Company Repauno Works manufactured high explosive dynamite. The company began as the Repauno Chemical Company on June 7, 1880, by Lammot du Pont (1831-1884), a chemist working for the family business, E.I. du Pont de Nemours & Company, a chemical company which originally produced gunpowder. The panoramic photographs show two views of the dynamite works and workers village at the DuPont Company's Repauno Works.
Dates: 1919; 1926
Abstract: The Indiana Ordnance Works was built by the DuPont Company for the U.S. Government beginning in 1940. It manufactured military explosives, propellants, and smokeless powder. The panoramic photographs show overviews of the Indiana Ordnance Works facilities, Charlestown, Indiana.
Found in: Audiovisual Collections > E.I. du Pont de Nemours & Co., Inc. Experimental Station and Country Club panoramic photograph
Abstract: 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. The panoramic photograph provides an overview of the DuPont Company Experimental Station and Country Club, outside of Wilmington, Delaware. It shows temporary structures and construction for expansion of the Experimental Station.
Dates: circa 1947
Found in: Audiovisual Collections > E.I. du Pont de Nemours & Co., Inc. Guncotton plant panoramic photographs
Abstract: The DuPont Company purchased a site near City Point, Virginia on the James River in 1912 in order to build a dynamite plant located closer to the southern market. The panoramic photographs show exteriors of the plant, views of the workers' housing, the town (including the African American section), and a photograph of the Hopewell China Corporation, a post-war reuse of one of the facilities.
Dates: 1918-circa 1920
Trojan Chemical Company loading plant, war workers, plant officials, and employees panoramic photograph
Found in: Audiovisual Collections > Trojan Chemical Company loading plant, war workers, plant officials, and employees panoramic photograph
Abstract: The Allentown Non-Freezing Powder Co. built this plant in 1903 to manufacture commercial explosives using its proprietary ingredient, nitrostarch. The panoramic photograph shows employees of the Trojan Chemical Company explosives plant in Seiple, Pennsylvania.
Dates: 1918 November 26
Found in: Audiovisual Collections > E.I. du Pont de Nemours & Co., Inc. Racine explosive plant engineers panoramic photograph
Abstract: 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.
Dates: circa 1914-1918
Abstract: Quarrying is the act of extracting natural stones to use in building materials. Throughout the 1920s quarries were the largest employers of African Americans. This collection consists of two panoramic photographs of unidentified quarries, one with workers, one without.
Dates: circa 1920
Abstract: DuPont American Industries was formed in 1918 as a holding of the E.I. du Pont de Nemours & Company in order to purchase a substantial portion of General Motors and Chevrolet stock. This item is a portrait of a large group of male employees of DuPont American Industries.
Dates: 1918 June 19
Abstract: The oil fields in Burkburnett Texas are well-known for being an abundant source of petroleum. This item is a panoramic photograph which shows oil wells and buildings.
Found in: Audiovisual Collections > E.I. du Pont de Nemours & Co., Inc. Pompton Lakes panoramic photographs
Abstract: 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.
Dates: 1918; 1943
Found in: Audiovisual Collections > Plant Patrol Division, Military Explosives plant panoramic photograph
Abstract: During World War II, the DuPont Company was contracted to produce smokeless powder, TNT and DNT explosives for the military. This panoramic photograph is a group portrait of uniformed guards at a military explosives plant in Memphis, Tennessee, 1941.
Dates: 1941 March 5
Found in: Audiovisual Collections > E.I. du Pont de Nemours & Co., Inc. dynamite works panoramic photograph
Abstract: 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.
E.I. du Pont de Nemours & Co., Inc. Jackson and Technical laboratories at the Dye Works panoramic photographs
Found in: Audiovisual Collections > E.I. du Pont de Nemours & Co., Inc. Jackson and Technical laboratories at the Dye Works panoramic photographs
Abstract: 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.
Found in: Audiovisual Collections > E.I. du Pont de Nemours & Co., Inc. Spruance plant panoramic photograph
Abstract: 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.
Dates: 1935 March 12
Found in: Audiovisual Collections > E.I. du Pont de Nemours & Co., Inc. Neoprene B plant panoramic photographs
Abstract: 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.
Found in: Audiovisual Collections > E.I. du Pont de Nemours & Co., Inc. Old Hickory plant panoramic photographs
Abstract: 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.
Found in: Audiovisual Collections > E.I. du Pont de Nemours & Co., Inc. Penniman shell loading plant panoramic photographs
Abstract: 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.
Abstract: Wawaset Park was a planned residential community built by the DuPont Company around 1918 for its executives in Wilmington, Delaware. These panoramic photographs depict construction of homes and overall views of area, street scenes, and pictures of individual houses.
Abstract: The Bridesburg Machine Works of Alfred Jenks & Son were manufacturers of cotton and wool carding spinning and weaving machinery, shafting and millgearing. The lithograph shows the plant exterior, people in the street, and a delivery wagon carrying textile machinery. Vignettes of machines surround the main view.
Dates: circa 1856
Found in: Audiovisual Collections > Locomotives and views of Mauch Chunk contact photographs and negatives
Abstract: This collection consists of glass plate negatives and photographic copy prints which were made directly from the negatives. The images document an array of subjects, though the majority of the images are of locomotives, railroad cars, railroad stations, and other railroad infrastructure. Various landscape and cityscape photographs are also included. Where it is possible to identify the locations, the majority of images document sites in Pennsylvania, though photographs of sites in New York state and Ontario are also present.
Dates: circa 1860-1950
Abstract: Pierre A. Gentieu (1842-1930) was a long-time employee of E.I. du Pont de Nemours & Company. Gentieu was born in France in 1842. He emigrated to the United States around 1859. He began working for DuPont in 1877. This collection is comprised of images taken by DuPont Company employee Pierre Gentieu from approximately 1880 to 1920. Gentieu's images document the DuPont Company Powder Yards along the banks of the Brandywine River in Wilmington Delaware. The collection documents the surrounding community along the Brandywine including worker's families, du Pont family homes, churches in the area, DuPont Company exposition displays, and other facets of social and work life in the area.
Found in: Audiovisual Collections > Hercules Powder Company advertising poster, Not this trip, Old Pal
Abstract: The Hercules Powder Company was one of the companies created from the break up of the E.I. du Pont de Nemours "powder trust" in 1911 as ruled by a U.S. Supreme Court decision. In its early years as a separate company, it continued to produce explosives and dynamite and used advertising styles and devices. This item is a poster depicting a World War I soldier leaving home and telling his hunting dog, "Not this trip Old Pal."
Dates: circa 1917
Abstract: The Centennial Exhibition of 1876 celebrated the one hundredth anniversary of American Independence. Held in Fairmount Park in Philadelphia, it was the first major U.S. world's fair. The collection consists of eight photographic prints with views of the 1876 Centennial Exhibition buildings and grounds.
Found in: Audiovisual Collections > Otis Elevator Company installation of electric lifts for the London Underground photographs
Abstract: The Otis Elevator Company manufactures, installs and maintains elevators, escalators and moving walkways. In 1904, the Underground Electric Railways Company of London, a precursor of today’s London Underground, purchased 170 electric elevators from the company, to be installed between 1905 and 1907. The album contains images of elevators and elevator equipment being installed at subway stations in London. The photographs are labeled by station and date. Most of the images show the equipment used to raise, lower and brake the elevator, often already installed at the top of the elevator shaft or in a machine room.
- Manuscripts and Archives 188772
- Audiovisual Collections 125104
- Published Collections 34097
- Archival Record 346292
- Collection 1279
- Organization 1229
- Person 1211
- Subject 1097
- Correspondence 165
- Railroads 108
- Advertisements 105
- Gunpowder industry 66
- Exhibitions 62
- Chemical industry 61
- Explosives industry 58
- Social history 48
- Financial statements 46
- Textile industry 41
- Portraits 40
- Research, Industrial 40
- Ephemera 39
- Exhibition buildings 39
- Steel industry and trade 39
- Scrapbooks 36
- Textile fibers, Synthetic 36
- Postcards 35
- Electronic industries 34
- Iron industry and trade 34
- Patents 34
- Ships 34
- Group portraits 33
- Factories 32
- World War, 1939-1945 32
- Construction projects 31
- Photograph albums 31
- Wilmington (Del.) 31
- Aeronautics 30
- Marketing 30
- Television 30
- Reports 29
- Panoramic photographs 28
- Railroads -- Rolling stock 28
- Industrial design 27
- Testing laboratories 26
- Account books 25
- Genealogies 25
- Minutes 25
- Du Pont family -- Homes and haunts 23
- Industrial chemists 23
- Inventors 23
- Planographic prints 23
- Automobile industry and trade 22
- Coal mines and mining 22
- Diaries 22
- Domestic relations 22
- Investments 22
- Packaging -- Design 22
- Papermaking 22
- Aerial photographs 21
- Biography 21
- Blast furnaces 21
- Posters 21
- Weapons industry -- Employees 21
- Railroad stations 20
- Business and politics 19
- Powder mills 19
- Sales promotion 19
- Technical drawings 19
- Chemical plants 18
- Computer storage devices 18
- Dyes and dyeing 18
- Industrial films 18
- Industrial safety 18
- Maps 18
- Pennsylvania 18
- Steel-works 18
- Gunpowder, Smokeless 17
- Industrial housing 17
- Iron and steel workers 17
- Trade associations 17
- Vacuum-tubes 17
- World War, 1914-1918 17
- Historic sites 16
- Oral histories 16
- Speeches 16
- United States. Navy -- Officers 16
- Computer industry 15
- Electric industries 15
- Finishes and finishing 15
- Gardens 15
- Laboratory notebooks 15
- Philadelphia (Pa.) 15
- Railroads -- Buildings and structures 15
- Railroads -- Rolling stock -- Design and construction 15
- Receipts (Financial records) 15
- Commerce 14
- Wages 14
- Airplanes 13
- Banks and banking 13
- Dwellings 13
- Employees' magazines, newsletters, etc. 13
- Executives 13
- Machine-tools 13
- Mechanical engineering 13
- Notebooks 13
- Paper mills 13
- Papermaking machinery 13
- Railroads -- Employees 13 ∧ less
- English 2382
- Spanish; Castilian 899
- German 57
- Portuguese 36
- French 32
- E.I. du Pont de Nemours & Company 147
- Du Pont family 99
- Unknown 53
- Pennsylvania Railroad 36
- Du Pont, Samuel Francis, 1803-1865 30
- Du Pont de Nemours, Pierre Samuel, 1739-1817 25
- E.I. du Pont de Nemours & Company. Experimental Station 22
- RCA Corporation 18
- United States. Navy 17
- Dick, John A., 1879-1972 14
- New York World's Fair (1964-1965 : New York, N.Y.) 14
- Du Pont, Eleuthère Irénée, 1771-1834 12
- New York World's Fair (1939-1940 : New York, N.Y.) 12
- Savery, Thomas H., 1837-1910 12
- World’s Columbian Exposition (1893 : Chicago, Ill.) 10
- Carothers, Wallace Hume, 1896-1937 9
- Du Pont, Pierre S. (Pierre Samuel), 1870-1954 9
- Eleutherian Mills (Greenville, Del. : Estate) 9
- Greenewalt, Crawford H., 1902-1993 9
- Jackson Laboratory (E.I. du Pont de Nemours & Company) 9
- Loewy, Raymond, 1893-1986 9
- Pusey and Jones Company 9
- Baldwin Locomotive Works 8
- Bethlehem Steel Corporation 8
- Centennial Exhibition (1876 : Philadelphia, Pa.) 8
- E.I. du Pont de Nemours & Company. Chestnut Run Laboratories 8
- E.I. du Pont de Nemours & Company. Textile Fibers Department 8
- Joseph Bancroft & Sons Co 8
- Longwood Gardens (Kennett Square, Pa.) 8
- Pusey & Jones Corporation 8
- Reading Company 8
- E.I. du Pont de Nemours & Company. Carney's Point Works 7
- E.I. du Pont de Nemours & Company. Organic Chemicals Department 7
- E.I. du Pont de Nemours & Company. Pioneering Research Laboratory 7
- Gentieu, Pierre A., 1842-1930 7
- Gilpin, Joshua, 1765-1841 7
- Hagley Museum and Library 7
- Hanford Engineer Works 7
- International Business Machines Corporation 7
- Lehigh Valley Railroad Company 7
- Philadelphia & Reading Railroad Co 7
- Southeastern Pennsylvania Transportation Authority 7
- Wilkinson, Norman B. 7
- Amtrak 6
- Baltimore and Ohio Railroad Company 6
- Bethlehem Steel Company 6
- Century of Progress International Exposition (1933-1934 : Chicago, Ill.) 6
- Crowninshield, Louise du Pont, 1877-1958 6
- E.I. du Pont de Nemours & Company. Central Research and Development Department 6
- General Electric Company 6
- Lea family 6
- Maxim, Hudson, 1853-1927 6
- Penn Central Transportation Company 6
- Radio Corporation of America 6
- Victor Talking Machine Company 6
- Young, William, 1755-1829 6
- Brandywine Manufacturers Sunday School 5
- Budd Company 5
- ConRail 5
- DeMirjian, Charles H., 1925- 5
- Du Pont, Alfred I. (Alfred Irénée), 1864-1935 5
- Du Pont, Irénée, 1876-1963 5
- Du Pont, Sophie Madeleine, 1810-1888 5
- Du Pont, Victor Marie, 1767-1827 5
- E.I. du Pont de Nemours & Company. Brandywine Works 5
- E.I. du Pont de Nemours & Company. Hagley Yard 5
- General Motors Corporation 5
- Hagley Museum and Library. Library. Oral History Project Office 5
- Hercules Powder Company 5
- Louisiana Purchase Exposition (1904 : Saint Louis, Mo.) 5
- Manhattan Project (U.S.) 5
- Midvale Steel and Ordnance Company 5
- National Association of Manufacturers (U.S.) 5
- Ramsay, William G. (William Gouverneur), 1866 - 1916 5
- Remington Arms Company 5
- United States. National Aeronautics and Space Administration 5
- University of Delaware 5
- All American Engineering Company 4
- American Car and Foundry Company 4
- American Iron and Steel Institute 4
- American Telephone and Telegraph Company 4
- Bauduy, Peter, 1769-1833 4
- Bond, James 4
- Brandywine Hundred (Del.) 4
- Bronfman family 4
- Central Railroad of New Jersey 4
- Christ Church Christiana Hundred (Greenville, DE) 4
- Du Pont de Nemours, Francoise Robin Poivre, 1748-1841 4
- Du Pont de Nemours, Pere et Fils & Cie 4
- Du Pont, Richard C. (Richard Chichester), 1911-1943 4
- Du Pont, T. Coleman (Thomas Coleman), 1863-1930 4
- E.I. du Pont de Nemours & Company. Elastomer Chemicals Department 4
- E.I. du Pont de Nemours & Company. Engineering Department 4
- E.I. du Pont de Nemours Powder Company 4
- Engineering Research Associates 4
- Indiana Ordnance Works 4
- Jackson and Sharp Company 4
- Joseph E. Seagram and Sons, Inc 4
- Kwolek, Stephanie, 1923-2014 4
- Lukens Steel Company 4 ∧ less