Finding Aids

The Jenks family produced talented inventors over many generations. Between the 1820s and the 1870s the family businesses were the leading cotton textile machine builders in Pennsylvania. During the Civil War, the firm operated a rifle factory as part of the Union war effort. The collection consist of a series of fragments handed down in the Jenks family related to several of their business ventures.

John R. McGrath (1923-2002) was a patent attorney who worked for E.I. du Pont de Nemours & Company for most of his career. McGrath worked primarily on nylon and its products. This collection consists of a notebook McGrath assembled and titled "Collection of Nylon Art," containing all of the nylon patents of the DuPont Company that he could find.