Lydia R. Bailey (1779-1869) owned and operated on of the busiest printing establishments in nineteenth century Philadelphia. The collection represents an account with John Steele (1758-1827), collector of the Port of Philadelphia, for printing of certificates and includes a list of ships for which certificates were purchased.

Famous chemist and Kevlar inventor Stephanie L. Kwolek (1923-2014) was a research associate at DuPont for forty years. These photographs document her career.

Stephanie Louise Kwolek (1923-2014) was an American chemist known for inventing Kevlar. She worked for the DuPont Company for forty years. Kwolek's main area of research was polymers, including high-performance fibers. This collection contains photographs, albums, slides and videotapes related to Kwolek's career and achievements, including her work on Kevlar.

Stephanie Louise Kwolek (1923-2014) was an American chemist known for inventing Kevlar. The papers of Stephanie L. Kwolek chronicle her work over a forty year span at the DuPont Company. The collection includes patents, journal articles, awards, subject files, and speeches that were either produced by or aided Kwolek in her work.

Willard H. Watkins (1874-1953) was a chemist and manager of the Application Laboratories for the Calco Chemical Division of the American Cyanamid Company. This small collection mainly consists of photographs depicting interior views of the chemical plant of the Allied Chemical and Dye Corporation in Buffalo, New York. These images show laboratory interiors with men and women working, dating to around the 1920s.