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).

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.

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 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.

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.

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.

Old Swedes Church (now known as Holy Trinity Church) was dedicated on July 4, 1699 in Wilmington, Delaware, built for the Swedish colony that settled there. One exterior view of Old Swedes Church in Wilmington, Delaware, showing the portico, steeple, and grave yard.

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.