- B. W. Jong, Brent W. Madsen, David Clifford Dahlin, Donald E. Shanks, Edward George Davis, Eugene D. Calvert, Harold L. Rhodes, Howard D. Jacobs, J. F. McIlwain, Jalna R. Zatko, John F. Papp, Kenneth L. Cashdollar, Noel N. Moebs, Roger A. Bloomfield, Roy Ernest Peterson, Roy T. Sorenson, W. E. Anable, William C. McBee, Albert R. Rule, Bill Stewart, Charles P. Lazzara, G. V. Sullivan, H. Heystek, Israel Liebman, Jack I. Paige, Judith A. Eisele, L. A. Neumeier, Milton E. Wadsworth, Thomas A. Sullivan, Danton L. Paulson, Donald J. Bauer, Dwight L. Sawyer, Joan C. Biordi, Lawrence L. Brown, Ronald S. Conti
· 1980
- Benton L. Tibbetts, D. G. Kesterke, D. G. Kuehn, Donald W. Mitchell, H. E. Thomas, Harold L. Rhodes, J. M. Kuchta, James H. Russell, James H. Scott, L. C. Headley, Larman J. Heath, Michael John Ferrante, Stephen Krickovic, Thomas E. Green, United States. Bureau of Mines. Staff, Coal Sampling and Inspection, Verne E. Hooker, A. F. Smith, Aldo L. Furno, C. I. Pierce, Charles Findlay, H. C. Carpenter, Jack I. Paige, L. M. Chanin, Lowell Stroud, Ray A. Jones, Wilbur I. Duvall, Danton L. Paulson, Philip C. Tully, Richard G. Burdick, T. E. Sterner, William Edward Wallace
· 1971
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