Charles J. Pedersen (1904-1989) was a research chemist with E.I. du Pont de Nemours & Company who spent most of his career at the Jackson Laboratory in Deepwater, New Jersey, and the Elastomer Chemicals Department at Wilmington, Delaware. This notebook consists of notes in Pedersen's own hand, with extensive chemical formulas and diagrams of molecules, interspersed with copies of journal articles.

William Henry Radebaugh (1909-1996) was a public relations executive at E.I. du Pont de Nemours & Company, a chemical company more commonly known as the DuPont Company, for more than twenty years. He wrote, produced, and directed many films about the company during his tenure there and for several years after his retirement. This item is a manuscript draft of a book Radebaugh wrote about DuPont's "five fibers": rayon, acetate, nylon, Orlon, and Dacron. The information is presented in simple terms so as to be understandable by a child, although it is helpful for non-technical adults as well. Radebaugh completed the manuscript in 1953; the manuscript includes a one-page forward by the author written in 1981.

Guy B. Taylor (1888-1972) worked at the DuPont Company, where he specialized in the oxidation of ammonia, the method of contact catalysis, and the synthesis of acetylene. His fragmentary papers document his career as a research chemist and include an autobiographical notebook that chronicles his life from childhood to retirement, Princeton dissertation on the dissociation of mercuric oxide, technical papers, patents, and papers from employment at DuPont's Experimental Station.