Charles I. du Pont & Company was a woolen factory. The firm was initially established as Du Pont, Bauduy & Co., but after its dissolution in 1815, it became the partnership of Victor & Charles I. du Pont de Nemours & Co. In 1827, the firm transitioned into Charles I. du Pont and Company and operated as such until 1856. This small collection includes twelve letter invoices for sky-blue cloth, dated 1840 and 1856.

Several early companies, established by members of the du Pont family, operated on the Brandywine Creek in proximity to the mills of E.I. du Pont de Nemours & Co. These businesses included factories that produced tanned leather, woolen and cotton cloth, and yarns. The firms also owned properties that were used by, or sold to, other developers of mills in the region. This collection includes the papers of Du Pont, Bauduy & Company (1803-1815); Du Planty, McCall & Company (1813-1837); Brandywine Mill Seat Company (1798-1854); A. Cardon & Company (1824-1833); and Rockland Manufacturing Company (1825-1856).