American Car and Foundry Company is a manufacturer of railroad rolling stock and railcar parts, founded in 1899. In the company's early years, American Car and Foundry Company constructed its railcars from wood. Additionally, the company engaged in architectural millwork for buildings. This collection features twenty-five copy photographs of building interiors and exteriors with emphasis on wooden architectural elements.

Bellevue estate, now the Bellevue State Park, is a historic estate that was once a series of farms owned by members of the Orr, Grubb, and Stevenson families and later purchased by William du Pont (1855-1928). The records are a series of deeds covering the conveyance of the Bellevue property from 1782 to 1920. There are also three maps of the estate, including one showing the location of the house and landscaping.

Henry Belin du Pont (1873-1902) 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 Eleuthère Irénée 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. The collection consists of views of and along the Brandywine Creek. These include the following du Pont family homes: Pelleport, Goodstay, Nemours, St. Amour, and Louviers. These photographs were possibly taken by Henry Belin du Pont (1873-1902).

Windsor Farms is one of Richmond's first planned neighborhood, primarily of Colonial Revival design. Architects included Duncan Lee, William Lawrence Bottomley, and C.W. Huff Jr. This collection includes plans, elevations, details, and typed specifications for a house built for Eugene E. du Pont (1914-1995) by architect C.W. Huff Jr.

Edward G. Bradford, II (1848-1928) was a federal judge on the United States District Court for the District of Delaware. He married Eleuthera Paulina du Pont in 1872. This collection consists of photographs of the du Pont family and estate, as well as numerous postcards.

The du Pont family is a prominent Delawarean family descended from Pierre Samuel du Pont de Nemours (1739-1817), who founded E.I. du Pont de Nemours & Company with his son, Eleuthère Irénée du Pont (1771-1834), in 1802. E.I. du Pont de Nemours & Company is a chemical research and manufacturing company more commonly referred to as the DuPont Company. This collection consists of placemats with images of exterior views of eight du Pont family homes.

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.

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.

Eleutherian Mills is the house built by Eleuthère Irénée du Pont (1771-1834), above his gunpowder mills, the E.I. du Pont de Nemours & Company. It served as a home to the du Pont family for generations, the last being Louise du Pont Crowninshield (1877-1958). The collection contains material related to the restoration of the home prior to Crowninshield occupying it. Also included are materials related to a road to the Eleutherian Mills and Nemours residences, repairs to the iron bridge across the Brandywine, and description of E.I. du Pont's garden.

Upper Louviers was a residence located on the east bank of the Brandywine Creek in Brandywine Hundred, Delaware, opposite the powder mills of E. I. du Pont de Nemours & Company. Elise du Pont Elrick (1902-1984), who lived at Upper Louviers as a child, was an architect and translator. This collection consists of architectural drawings of the residence made by Elise du Pont Elrick in 1936.

Eugene Blery (1805-1887) was a French artist, engraver and lithographer. This collection contains two etchings of pastoral views of Nemours in Normany, France. One depicts the French ancestral home of the du Pont family.

Charles Copeland (1867-1944) was Secretary of E.I. du Pont de Nemours and Company from 1921 to 1935. He also served on the Board of Directors from 1921 to 1942. This small collection primarily consists of scenic views of the Hagley property. The collection has been organized into three series: Brandywine and Hagley areas of Copeland estate; Rolling wheels, and Pierre Gentieu prints.

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. 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 collection consists of a survey and two letters related to du Pont's Deep Water Point Farm in Salem County, New Jersey.

Irene (Renee) Carpenter (1911-1991) 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 Eleuthère Irénée du Pont (1771-1834) in 1802. She was the second child of R.R.M. Carpenter (1877-1949) and Margaretta Lammot du Pont (1884-1973) and a granddaughter of Lammot du Pont (1831-1884). The collection consists of photographs of Irene Carpenter Draper, as a child and as a young adult, and her extended family.

Irénée du Pont (1876-1963) was a chemical engineer. He began work for E.I. du Pont de Nemours & Co. in 1903 in the Construction Division of the Black Powder Operating Department. After holding several positions within the company he went on to be the president of the DuPont Company. He served in this capacity from 1919 until 1926. The collection consists of photographs related to Irénée du Pont's family, personal interests, and involvement with organizations such as the Delaware Safety Council.

James W. Flaherty Inc. was a general contractor company in Wilmington, Delaware that operated between 1949 and 1983. Consists of drawings and plans for various local properties, including du Pont family estates.

John A. Bader II (1895-1961) was a Wilmington, Delaware, building contractor active during the 1930s, 1940s, and 1950s. The records are primarily Bader's business papers. The collection includes engineer's field books, diaries of trips, and job notes. Eight volumes contain profit and loss statements, cost accounting for jobs, records of checks paid, and files on individual construction jobs.

The Kennett Turnpike (Delaware Route 52) was built between 1811 and 1814 intended to provide a connection between Wilmington, Delaware and nearby areas in southeastern Pennsylvania, where it would connect to other turnpike leading to western Pennsylvania. The scale map shows the road and properties east of it including Mary Belin du Pont's (1839-1913) and Rising Sun Lane. The map was done by W.S. [William Smith] Morison (1866-1905).

Lammot du Pont Copeland (1905-1983) was an American businessman, great-great-grandson of E.I. du Pont (1771-1834), and chief executive officer of E.I. du Pont de Nemours & Company. This collection primarily consists of portrait photographs of members of the du Pont, Belin, Copeland, Gratiot, La Motte, and related families. There are also two small booklets containing prints of various du Pont and Cunningham homes.

Lavinia Dimmick Rée (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), and a great-niece of Sophie M. du Pont (1810-1888). The records consist of two copies of a typewritten transcription of "Memories of Aunt Sophie" written by Rée about du Pont's home, Lower Louviers, during the late 1870s and 1880s.

This collection consists of photographs and maps depicting the property of the Brandywine Works of E.I. du Pont de Nemours & Company. The maps and blueprints show how the property of the Brandywine Works was divided among du Pont family members for estates after the works closed. A small series of large-format photographs depict various scenes and events from the Brandywine Works and the city of Wilmington in general.

Mary Hemphill Bush Rieffel (1908-1991) was a nurse, philanthropist, and descendant of the du Pont family, who founded E.I. du Pont de Nemours & Company in 1802, a chemical company more commonly referred to as the DuPont Company. Mary Hemphill Bush Rieffel's collection documents her academic progress, travels, and family life growing up, as well as her own family as an adult. The collection is organized into two series: Family papers and Family photographs. The material dates from 1845 to 1995.

Pamela Cunningham Copeland (1906-2001) and Lammot du Pont Copeland (1905-1983) were active in the land conservation movement, cultural institutions (including both the Hagley and Winterthur Museums), and local civic and philanthropic work. The collection contains photographs of Pamela and Lammot du Pont Copeland and family members. Many of the pictures document the couple's various activities and philanthropic endeavors.

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.

"Rencourt" was the Wilmington, Delaware, home of Alexis Irénée du Pont (1843-1904) and his family. Pennsylvania architect Theophilus P. Chandler, Jr. (1845-1928) designed the house; it was built in 1890 and demolished in the 1950s. This collection includes plans of the main and second floors (ink on linen), plans and elevation of the stables (white-line blueprints), and plans of the gate (white-line blueprint).

Lammot du Pont (1831-1884) was a chemist and inventor, he was the grandson of Eleuthere Irenee du Pont (1771-1834), founder of E.I. du Pont de Nemours & Company, more commonly known as the DuPont Company. This collection contains photographs of Brandywine, Hagley area, and the family of Lammot du Pont and Mary Belin du Pont (1839-1913).

Route 1 is a major north-south U.S. highway extending from Florida to Maine. The plat depicts a small portion of Route 1 between Hamorton and the Anvil Inn, including P.S. du Pont's (1870-1952) Longwood Gardens.

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, 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. This collections consists of photographic material mostly relating to the U.S.F. Powder Company, together with the Ball Grain Explosives Company which was in a way U.S.F. Powder Company predecessor. It also includes William du Pont's family photographs and negatives.

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 Winder ‘Chick” Laird, Jr. (1910-1989) was a director of E. I. du Pont de Nemours and a financial advisor, starting his own brokerage firm in Wilmington, Delaware. This collection includes photographs of interiors and exteriors of du Pont family estates and homes in Delaware, as well as portraits and snapshots of du Pont and Laird family members. The collection also contains a large number of lantern slides, blueprints, maps, and film reels of home movies and family skits.