The Gamma Mu chapter (#84) at the University of Pennsylvania was installed June 5, 1954 with Martin A. Sherman serving as the installing officer. The Alpha Phi chapter performed the Ritual and installation ceremony. Charter members of the Gamma Mu chapter include: Donald Prizer, John Crawford, Robert Cutler, Paul Davidow, John Hamell, Gerald Schaffer, John Smith, Richard Spertzel, Bruce Beach, Calvin Weber, Marvin Weger, and Donald Graf.