Consists of the family papers of former DuPont CEO Lammot du Pont Copeland (1905-1983) and his wife Pamela Cunningham Copeland (1906-2001). The Copelands' papers document the lives and interests of a wealthy American couple in the twentieth century. In particular, the papers of Pamela C. Copeland are an important source of information about the public activities of women in the areas of historic preservation, gardening and horticulture, and philanthropy.

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.

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.

Richard E. Heckert (1924-2010) was chairman and CEO of E.I. du Pont de Nemours & Company from 1986 to 1989. His papers consist of his "personal" business files, most of which were generated by his membership on the boards of businesses and non-profit organizations.

Irene "Sophie" Sophie du Pont May (1900-2001) was a churchwoman, a philanthropist, and 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 Sophie du Pont May's family correspondence and financial correspondence as well as correspondence between her father Irénée du Pont (1876-1963) and his older sister Louisa d'Andelot du Pont Copeland (1868-1926).

Walter S. Carpenter, Jr. (1888-1976) was an industrialist, philanthropist, and former President and Chairman of E.I. du Pont de Nemours & Company, a chemical company more commonly referred to as the DuPont company. This collection of personal papers of Carpenter, Jr. consists primarily of letters to family, friends, and business associates, as well as financial information records. The papers date from 1916 to 1976.