Willis L. Shirk, Jr. is a historian interested in promoting a better understanding of the history and philosophy of science, engineering and mathematics. He has worked in private industry, taught history at the university level, and served as a museum educator and archivist. In his role as an archivist at the Pennsylvania State Archives, he authored several dozen articles appearing in a variety of academic journals and popular magazines. In 2003, he edited Documenting Pennsylvania’s Past: The First Century of the Pennsylvania State Archives. Willis resides with his wife in Lancaster, Pennsylvania.