- Frank Leslie Duley, Alfred Douglas Edgar, Arthur Frederick Sievers, Claude Kedzie Shedd, Frank W. Tilley, George McMillan Darrow, Harold Everett Tower, Harry L. Garver, Irvin Fay Reed, Leon Sherwood Minckler, Morris Samson Lowman, Myron Francis Babb, O. L. Mimms, Philip Luginbill, Rush Porter Marshall, Tom Dale, Verne Elbert Davison, Walter Whittier Swett, William Phelps Everard, William White, Alma May Waterman, Arthur Glenn Chapman, Elmer Clark Stevenson, George Fordyce Waldo, Harry Harrison Gardner, James Ellsworth Kraus, Jouette Clark Russel, Miriam Birdseye, William John Zaumeyer
· 1951
- Theodore Peter Dykstra, Alice Louise Robert, Axel Langvad Andersen, Berten Wendell Allred, Charles Wesley Gantt, Clarence Dinsmore Stein, Claude Kedzie Shedd, F. M. Grant, Franklin Thomas Cowan, Fred Charles Simmons, Howard Wilfred Johnson, I. E. Stokes, John Lewis Creech, L. F. Locke, R. W. Leukel, Robert S. Rummell, Ross Calvin Thompson, Thomas Lotti, Tom Dale, Verne Elbert Davison, William John Reid, William Joseph Sando, William Solomon Porte, Rufus F. Dowdle, Claude Carl Wakeland, Clark E. Holscher, Donald William Chamberlain, Floyd Franklin Smith, Frank P. Cuthbert, Grover F. Brown, Otto H. Coleman, Sears Polydore Doolittle, V. F. Tapke, Walton Monroe Nixon, Walter Oliver Hawley, D. J. Caffrey, Jack L. Dean, Samuel George Lehman
· 1955