Dr. Fradin, in semi-retirement at the time of the interview, came to Argonne National Laboratory in 1967. In the course of his career he did materials science research and had various management jobs, including serving as an Associate Laboratory director. In this interview he talks about the evolution of the materials science program at Argonne as well as the advent of the Advanced Photo Source (APS). Near the end of the interview he discusses the status and future of large materials science facilities, including APS.