This group of materials within the Winterthur Manuscripts collection contains the papers of Victorine (du Pont) Bauduy, Evelina (du Pont) Bidermann, and Eleuthera (du Pont) Smith, as well as their husbands: Ferdinand Bauduy, James Antoine Bidermann, and Thomas MacKie Smith. It does not include the papers of their sister, Sophie Madeleine (du Pont) Du Pont, wife of Samuel Francis Du Pont, which are held in Group IX of the Winterthur Manuscripts.

Victorine du Pont Bauduy's papers cover a period of sixty years. As a woman of means, she was able to pursue her interests, which included education and literature. Outgoing letters dating from 1803 to 1861 were written to her mother, siblings, nieces and nephews, and friends. The letters primarily discuss family matters, health, sewing, clothing, weather, and household administration, particularly the management of servants. Incoming letters dating from 1798 to 1861 were written by family and friends. Letters from school friends document their interest in fashion, visits, courting, and literature. Of particular note are exchanges with Antoinette Brevost, a member of a French refugee family who established a girl's school in Pittsburgh before going on to teach at Natchez.

In addition to correspondence, the papers include the "Tancopanican Chronicle," a family newsletter written by Victorine and her sisters in the 1820s, which details domestic events. The papers also include some records of the Brandywine Manufacturers' Sunday School (BMSS) from 1816 to 1852, consisting of reports on students, speeches before a class, copies of reports sent to the American Sunday School Union describing the BMSS, lists of Sunday School books, and BMSS subscribers with the amounts subscribed.

Additional papers include household accounts from 1838 to 1842, which primarily record expenditures for food, but also contain miscellaneous and private expenses (including donations to the poor), servants' wages, and "work done for the factory and other expenses." Another account book from 1815 to 1818 records Victorine's personal expenses. Her diaries, dating from 1843 to 1849, include private expenses; they also note the weather and activities, mostly visits. There are also lists of New Year's gifts given to family, household staff, and friends from 1847 to 1861.

Ferdinand Bauduy's papers consist of a few brief items of correspondence.

Evelina du Pont Bidermann's papers consist primarily of outgoing correspondence to parents and sisters regarding family news, health, descriptions of fabrics and clothing, and the "servant problem." Incoming letters are primarily from Bidermann family members and female friends. Additional papers include copies of prayers and meditations, report cards from Madame Rivardi's school, medical records, and a poem by Evelina on the Battle of Lake Erie with a watercolor of Oliver Hazard Perry.

James Antoine Bidermann's papers consist of outgoing and incoming correspondence, letters of introduction from the Marquis de La Fayette, and property and estate papers.

Eleuthera du Pont Smith's papers consist primarily of correspondence, both incoming, dating from 1831 to 1876, and outgoing, dating from 1816 to 1875. They contain discussions of family news, sewing, domestic activities, and travels in the United States and Europe.

The papers also include Eleuthera's diaries from 1840 to 1874, though incomplete. They contain descriptions of fancy sewing and visiting, as well as church attendance, with the subjects of sermons, lists of gifts given and received, and operations of the Brandywine Manufacturers' Sunday School. An account book from 1870 to 1874 contains expenses such as servants' wages and donations to churches, the American Missionary Society, and the Sewing Society. The papers also include a journal of an 1829 trip to Philadelphia, New Jersey, and New York and another of a European trip from 1846 to 1847.

Eleuthera's miscellaneous papers include family genealogical notes; extracts from the writings of Du Pont de Nemours, Victor du Pont, and Turgot; an account of the death of Alexis I. du Pont; a list of visitors to Eleutherian Mills (including Lafayette); and notes on the Maréchal de Grouchy. Her autograph collection materials are also in this part of the collection. Much of Smith's autograph collection was given to her by General Mercier du Paty de Clam, a son of Adrien Mercier du Paty de Clam, and his wife, Marie Jacqueline Bidermann, with each item certified by him. Sketchbooks contain various drawings, including scenes along the Brandywine, birds, flowers, and caricatures. Ten volumes of school copybooks include history, geography, poetry, and literature. There are also examples of poetry, recipes, prayers, devotions, and copies of sermons.

Dr. Thomas MacKie Smith's papers include letters written to Eleuthera while she was away, describing domestic life in her absence. His papers also include a medical account book from 1833 to 1851 and a record of babies delivered from 1834 to 1852.

There is a herbarium in ninety-one folders.