Emeritus, 1976-87 John N. Irwin II, 1966-73 Frederick Seitz, 1973-83 (Chair, 1976-83) Roger W. Straus, Jr., 1973-89; Trustee Emeritus, 1989-2004 Carl M. Mueller, 1974-85 Ralph E. Leach, 1975-83 Lewis Thomas, 1975-85 Richard W. Couper, 1975-94 Lewis M. Branscomb, 1976-78 William T. Golden, 1976-81 W. Cla