C. D. Messelt / David C. Oyler / David M. Hopstock / David M. Soboroff / George N. Aul / Glenn R. Palmer / John L. Ellenberger / John M. Gomes / Joseph M. Singer / Leroy H. Wullstein / N. A. Gokcen / Richard G. Sandberg / S. Ralph Austin / Stuart J. Hussey / Terry L. Marchewka / Timothy J. Driscoll / United States. Bureau of Mines / Yael Miron / B. S. Covino / Donald A. Stanley / George M. Martinez / H. B. Salisbury / H. Heystek / Ivan L. Nichols / Jerry D. Troyer / Joseph Cervik / Robert F. Droullard / Ronald Phillip Tye / Terry L. Hebble / Thomas C. Ruhe / W. Richard McDonald / William P. Diamond / Andrew A. Cochran / Danton L. Paulson / Don C. Seidel / E. K. Landis / George M. Potter / Morton Min Wong / Murray Rosen / P. W. Jeran / Richard William Watson | 