Finding Aids

Donald Robert Hull (1911-1995) was a longtime employee at the DuPont Company mainly working with nylon and textile fibers. The collection consists of four scrapbook albums of material from Donald Hull's career with the Du Pont Company.

H. Ray Warren (1921-2011) was a physicist, engineer, and inventor at the Radio Corporation of America (RCA) for thirty-one years, working primarily on magnetic tape recording innovations. Warren's papers and audiovisual materials form a small collection that documents developments in magnetic recording for audio and video tape, primarily related to magnetic heads and low crosstalk processing signals. This collection is arranged into eight series: Personal files; Patent files; Proposals; Reports and technical data/information; SelectaVision files; Publications and reprints; Work meeting notes and photographs; and Audio and video recordings. The documentation is fragmentary; none of the sets of papers is complete.