In this interview, Claude K. Deischer discusses his life and his career as a chemist and historian of chemistry. Initially, Deischer recollects his childhood and early education. He then speaks about his undergraduate education at Kutztown State and Muhlenberg and his graduate and postgraduate research at the University of Pennsylvania. A discussion of his early teaching at Penn, his initial interest in the history of science, and the Smith Collection follows. Deischer then appraises his scholarly activities during and after World War II and his department and students. The interview concludes with Deischer considering the part that he played in starting Chymia, and his contributions to the American Chemical Society and the Moravian Church.