Bill Mackey (1906-1996) was a chemical engineer and the plant manager of the Technical Division of the Explosives Department of the E.I. du Pont de Nemours & Company. His papers consist of a mix of personal and DuPont Company materials documenting his career as an explosives expert.

E.I. du Pont de Nemours & Company is a chemical company more commonly referred to as the DuPont Company. The DuPont Corporate Plans Department is primarily responsible for coordinating all of the company’s strategic business planning activities. The records of DuPont Corporate Plans are fragmentary in nature and document only a small segment of the department’s responsibilities. These records are arranged into two series: Multi-client reports and Silverstone tracking study. The bulk of the material is contained in Series I and consists of multi-client reports, which are marketing studies prepared by outside consulting firms.

E.I. du Pont de Nemours & Company is a chemical company more commonly referred to as the DuPont Company. DuPont Information Systems is a department of the DuPont Company that facilitates the adaptation of increasingly complex equipment and improved programming techniques, selects those with the greatest applicability to the company’s business, and guides other departments in their use. The records of DuPont Information Systems are incomplete and reflect only a portion of the department’s activities. These records are arranged in three series: Central Information Services Division; Planning and Development Division; and Telecommunications and network technology.

E.I. du Pont de Nemours & Company’s R. & H. Chemicals Department manufactured and sold peroxides, cyanide of sodium, formaldehyde, trychloretheline, tin oxide, and polyvinyl alcohol. The department was formed in 1933 as a result of the 1930 acquisition of the Roessler & Hasslacher Chemical Company, which operated a plant in Niagara Falls, New York. The records primarily consist of reports on experimentations with various insecticides, pesticides, preservatives, and other forms of pest and disease-control applied to the farming and agricultural industries.

Eugene du Pont Jr. (1873-1954) was a director of the E.I. du Pont de Nemours & Company from 1917 until 1954, and a great grandson of company founder, Éleuthère Irénée du Pont (1771-1834). The papers of Eugene du Pont Jr. include reports to the DuPont Company Board of Directors by the executive committee and the treasurer of the DuPont Company. In addition, there are several copies of letters to du Pont family members.