Alwin William Goke, C. L. Orrben, Carl Spencer Pearson, Ernest Alvin Nieschmidt, Marvon Harold Layton, Robert Campbell Jurney, Samuel Oscar Perkins, Stanley Wallace Cosby, Allen Henry Hasty, C. E. Dornberger, Howard Barr Winant, M. E. Carr, Robert Eddis Devereux, William Edgar Tharp, C. A. Hollopeter, Edward Shulkcum, Frank Bonar Howe, Daniel Francis Kinsman, Ray Carlton Roberts, Robert Wildermuth · 1931
Joseph Worley Moon, Basil Abaskin, John T. Miller, Ray Carlton Roberts, Robert Campbell Jurney, William Anderson Davis, William James Latimer, Arthur Elijhah Taylor, F. A. Hayes, Robert Eddins Devereux, Victor Adams Hendrick, Zera Calvin Foster, Clarence Lounsbury, Harold Carl Knoblauch, Samuel Shockley Obenshain, Charles Shaffer Simmons, George Walker Patteson, Stanley Vaughn Madison, Samuel Ocsar Perkins, Edward Shulkcum, Robert Wildermuth · 1937
Basil Abaskin, Miles Walter Beck, Raymond Earl Storie, Robert Campbell Jurney, Robert Eddins Devereux, Samuel Oscar Perkins, Samuel Rankin Bacon, W. J. Moran, William George Harper, Daniel Franklin Trussell, Edward Shulkcum, F. A. Hayes, Howard William Higbee, J. T. Miller, E. A. Nieschmidt, Richard Moon Marshall · 1933