Curtis Huttenhower 2000, professor at Harvard T.H. Chan School of Public Health. Tim Cindric 1990 (Mechanical Engineering), president of Penske Racing[42] Barzilla W. Clark, 16th Governor of Idaho[43] Ernest R. Davidson 1958, National Medal of Science winner Lawrence Giacoletto 1938, Transistor pioneer Marshall Goldsmith 1970, Noted Management consultant John Hostettler 1983, Former U.S. Congressman from Indiana Don Lincoln 1986, Particle Physicist Chris Mack 1982, Noted Lithography expert Art Nehf 1914, Major League Baseball pitcher Abe Silverstein 1929, Aeronautical engineer, NASA center director, and Guggenheim Medal winner Mat Roy Thompson 1890–1891, Civil Engineer and builder of Scotty's Castle. Jim Umpleby 1980, Caterpillar, Inc.