Directors of National Museum of Natural History (before 1969, Museum of Natural History) have included Remington Kellogg, Acting Director, 1957-1958; Albert C. Smith, 1958-1962; T.D. Stewart, 1962-1966; Richard S. Cowan, 1966-1973; Porter M. Kier, 1973-1979; James F. Mello, Acting Director, 1979; Richard S. Fiske, 1980-1985; James C. Tyler, Acting Director, 1985, 1988; Robert S. Hoffmann, 1985-1988; Frank Talbot, 1988-1994; Donald J. Ortner, Acting Director, 1994-1996; David L. Pawson, Acting Director, 1996; and Robert W. Fri, 1996- .