Alfred Irénée du Pont (1864-1935) was the eldest son of E.I. du Pont (1829-1877). He joined the family gunpowder firm in 1884. This item is portrait of Alfred I. du Pont, dated September 1881.

Anna Lea (1849-1927) was the daughter of William Lea (1805-1876) and Jane Scott Lovett (1817-1888). Since the 1770s, the Lea family were among the largest flour mill operators at the Brandywine Falls, north of Wilmington, Delaware. This item is a carte-de-visite photograph album which contains portraits of the Lea and related families, primarily the families of William and Jane Scott Lea’s children (Anna’s siblings, their spouses, nieces, nephews, and friends).

Atlantic Aviation was begun by Henry Belin du Pont (1898-1970) in 1927 to provide services for business aviation. In 1948 it moved from the Du Pont Airport to the new New Castle County Airport south of Wilmington, Delaware. Soon it expanded to other airports around the country. The collection includes portraits and views of Atlantic Aviation facilities at various airports. There are also a few photographs of airplanes, including the Spirit of St. Louis.

Charles Copeland (1867-1944) was Secretary of E. I. du Pont de Nemours and Company from 1921 to 1935. The portrait shows Charles Copeland seated and in 3/4 profile etched by the artist, James McBey.

Charles Milton Altland Stine (1882-1954) was a chemist and an employee of the DuPont Company for thirty eight years. The majority of the collection features portraits of Stine and one image of Stine receiving an award.

Charles Mattathias Jacobs (1850-1919) was a British tunneling engineer. This is a digital copy of a painting of Jacobs at approximately sixty years of age, in court dress.

Alexis I. du Pont (1816-1857) was proprieter of his family business, E.I. du Pont de Nemours & Company, which began in the manufacture of gunpowder in 1802. He was the youngest child of Eleuthère Irénée du Pont (1771-1834), the founder of the DuPont Company. This collection contains thirteen photographic items, mostly portraits of Alexis I. du Pont and other du Pont family members.

DuPont Company employees series dates from 1937 to 1987 and contains group portraits of Experimental Station executives, proofs of articles for DuPont Today magazine, one issue of DuPont Today, portraits of Crawford H. Greenewalt, Salim Ibrahim and Charles J. Pedersen and a chart titled "CIS-IFS-ABS update." There are also three certificates which were awarded to the DuPont Company from professional organizations.

The DuPont executive team holds top-line responsibility for driving DuPont’s vision and ensuring that its core values are upheld across the company.This collection consists of individual portraits of DuPont Company executives. It also includes group portraits of the Executive Committee, Finance Committee, and Board of Directors.

Ernest du Pont (1880-1944) and his elder brother Francis Irenee du Pont (1873-1942) founded the U.S.F. Powder Company in 1919, which produced flashless cannon powder. This item is a cabinet card photograph of Ernest du Pont (1880-1944) as a young child.

Francis Bannerman Son was a major purveyor of military goods to sportsmen and collectors in New York City over three generations. The collection consists of photographs of Francis Bannerman and his family, including his wife, Helen "Nellie" Boyce Bannerman (1852-1931), and his sons, Francis VII (1873-1946) and David (1875-1957). The collection also includes photographs of Bannerman's Island Arsenal, including images of the 1969 fire in full blaze and its destructive aftermath.

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).

George J. Frebert (1929-2002) was a pilot and aviation enthusiast who served in the Air Force during the Korean War, operated the Dover Litho Printing Company in Dover, DE, published "Delaware Aviation History," and restored vintage airplanes as a hobby. This collection contains both materials used in the preparation of "Delaware Aviation History" and other items that Frebert collected dealing with Delaware aviation, aviators and airports.

Greta Brown Layton (1924-2014) 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. This collection consists of family portraits and group photographs of ancestors of Greta Brown Layton. The bulk of the collection are portrait engravings of individual members of the du Pont, Hounsfield, Pelleport, Van Dyke, Barksdale, and related families.

H. Ledyard Towle (1890-1973) was a commercial artist, portrait painter, and color consultant to various industries. This collection consists of a matted photographic portrait of H. Ledyard Towle.

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.

The series has been divided into subseries pertaining to Charles Schwab, Eugene Grace, Individuals, Board of Directors, and Group photographs. In addition to portraits of these men, there are views of their estates (including Schwab's "Riverside" in Manhattan designed by architect Maurice Herbert (dates unknown) and "Immergrun," his Loretto, Pennsylvania, estate with gardens designed by Charles Wellford Leavitt (1871-1928) in 1915), travel photographs, and personal items. There is another file of ninety-five portraits of men who were related to the steel industry.

The Individuals and families series includes includes du Pont, his family and extended family, friends and associates. The images are mostly individual portraits of identified people, over half of this series contains photographs of various du Pont family members, with particular emphasis on P.S. du Pont. There are group portraits and snapshots of families, many identified, but not always. Most of the photographs are original and there are a few original engravings, however, there are also many photographic reproductions of engravings, paintings, or drawings of those who lived prior to the invention of photography in 1826. There are glass and film negatives taken by P.S. du Pont himself. Many of these are from his youth; for example, the 65 negatives taken at Phillips Academy where his brother was a student. There are albums of cartes de visite of which many of the subjects are identified and also an album once in the possession of Henry Algernon du Pont containing Civil War-era military officers (predominantly physicians) and military scenes. There is a two-volume set of du Pont de Nemours family portraits that was printed for the 100 anniversary of the family and an album of the 150th family reunion in 1950. The albums are listed in the beginning of the series, followed by individuals/families listed alphabetically by last name.

Joseph Horn (1861-1941) and Frank Hardart (1850-1918) founded Horn & Hardart, a food service company, in 1888. In 1902, Horn and Hardart opened their first Automat in Philadelphia. The first New York City Automat opened in 1912, and other locations followed in both cities. The Automat became a huge success in Philadelphia and New York City, daily serving hundreds of thousands of people in its heyday. This item is a framed portrait photograph of Joseph Horn from around the 1930s.

The leather manufacturing firm of Joshua Conner & Son was founded in 1848 by James Conner (1813-1880). This collection consists of five photographs of the storefront, store interiors and portraits of the proprietors.

Karen du Pont Farquhar (1947-) is the great-granddaughter of T. Coleman du Pont (1863-1930), president of E.I. du Pont de Nemours & Company in the early 20th century. This collection of photographs is part of a larger group of du Pont family papers, which are housed in the Manuscripts and Archives Department. The photograph collection includes many photographs of the du Pont family from 1882 to 1960.

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.

Thomas Lea (1757–1823) joined in partnership with Joseph Tatnall (1740–1813), and passed on the Tatnall-Lea grain mills in Wilmington, Delaware to his son William Lea (1805-1876), who took over operation of the mills in 1837. In 1864, William Lea brought his sons Henry Lea (1839-1888) and Preston Lea (1841-1916) into the firm, changing the name to William Lea & Sons Company. This collection includes portraits of members of the Lea and related families. These include such family names as Tatnall, Warner, Preston, Ferris, Downing, Spruance, Lovett, Moore, Bush, Ely, and others.

This reproduction (copied from an original cabinet card) is of Lea Pusey (1820-1896) photographed through a large block of clear ice. Pusey created the plate process, a method to make commercial ice and was the founder of Diamond Ice Company.

This collection contains photographs of the LeCarpentier, Green and Baker families who were farmers and merchants in the Delaware valley area. The majority of the collection consists of formal portraits of family members, a small number of which are identified, as well as views of various locations around Wilmington, Delaware.

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.

Mary A. Ferraro (b. 1851) is presumably the mother of Pierre Ferraro (b. 1878) and Eugene Ferraro, both of which worked for the DuPont Company and were all residents of Walkers Bank at Hagley Mills. This item is a portrait of a woman identified only as the mother of Ferraro.

The National Industrial Conference Board (NICB), later named The Conference Board, is a non-profit membership organization specializing in economic research. This collection contains photographic prints, primarily portraits, of early NICB members.

The New Castle County Mutual Insurance Company was incorporated on February 6, 1849, as a mutual fire insurance company in Wilmington, Delaware. It was later renamed the New Castle Mutual Insurance Company. This small collection consists of seven portrait photographs of presidents and vice presidents of the New Castle County Mutual Insurance Company dating from around 1849 to 1912.

The Philadelphia, Easton and Water-Gap Railroad Company was incorporated in Pennsylvania on April 6, 1852, and renamed the North Pennsylvania Railroad Company on October 3, 1853. The collection consists of nineteenth and twentieth century portraits of officers and presidents.

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 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. This item is a matted portrait of P.S. du Pont, autographed on front beneath image area.

The Hagley Portrait file is an artificial collection (e.g., created and assembled by the archivist) composed almost entirely of photographic reproductions and copy negatives, with very few original prints. The Portrait file is intended to be a resource to assist in locating images of individuals. The images are not always of high quality, nor does Hagley own the copyright or the originals of all the images. The portraits are primarily formal individual portraits; there are some informal snapshots or group portraits. More than half of the collection depicts du Pont family members or those associated with the du Pont family. 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.

Rebecca Pennock Lukens (1794-1854) owned and managed the iron and steel mill known as Lukens Steel Company from 1825 until 1849. Studio portrait of Rebecca Lukens copied as a carte-de-visite.

The architectural firm of Victorine & Samuel Homsey, Inc. was founded in Wilmington, Delaware, in 1935. It was one of the first husband-and-wife architectural practices in the U.S.

Famous chemist and Kevlar inventor Stephanie L. Kwolek (1923-2014) was a research associate at DuPont for forty years. These photographs document her career.

Stephanie Louise Kwolek (1923-2014) was an American chemist known for inventing Kevlar. She worked for the DuPont Company for forty years. Kwolek's main area of research was polymers, including high-performance fibers. This collection contains photographs, albums, slides and videotapes related to Kwolek's career and achievements, including her work on Kevlar.

Wallace Hume Carothers (1896-1937) was 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. These items consist of four photographs preserved by Wilko Gustad Machetanz (1895-1973), Carothers's Tarkio College roommate and lifelong friend.

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.

At the time of his death, William G. Ramsay (1866-1916) was chief engineer, a director and vice president of E.I. du Pont de Nemours & Company. This is a small collection of photographs of executives of the DuPont Company. Most of them are copies of other photographs. All but one is identified.

William Wallace Atterbury (1866-1935) was a career officer on the Pennsylvania Railroad and its president from 1925 to 1935. The collection consists of photographs and other materials relating to William Wallace Atterbury. Many of the photographs are portraits and other pictures of Atterbury and his family, friends, and associates, including his Yale classmates, business leaders, and notable figures such as President and Mrs. Herbert Hoover and Charles Lindburgh.

The Wilmington Trapshooting Association (WTA) was organized in 1910 and continues to be active today. This collection consists of photographs of members of the Wilmington Trapshooting Association at various events from the early 1900s through the 1980s.

The Wilson family were owners of the Wilson Line, a steamboat company that was popular for traveling between Philadelphia, Pennslyvania, Wilmington, Delaware and Riverview Beach, New Jersey. This collection contains portraits of groups and individuals, as well as snapshot of family members and their estate and documents related to Frances W. Richardson's volunteer work for hospitals and the American Red Cross.

Andrew Gray Wilson (1844-1905) was well-known among shipbuilders as a preeminent marine engineer and naval architect. This small collection consists primarily of individual and group portraits and snapshots of the Wilson family and the family of one of the daughters, Natalie Wilson du Pont. The collection is organized into three series; family photographs; home interiors and exteriors; and family cars and dogs photographs.