Ray Bradbury, Arthur C. Clarke, E. M. Forster, Hal Clement, Miriam Allen DeFord, Fritz Leiber, Donald A. Wollheim, J. F. Bone, Alan E. Nourse, Roger D. Aycock, Mack Reynolds, A. Bertram Chandler, Robert Silverberg, Chester S. Geier, Randall Garrett, Paul Macnamara & John Victor Peterson
Isaac Asimov, Arthur C. Clarke, Hal Clement, John Wyndham, Robert Silverberg, Lester del Rey, J. F. Bone, Fritz Leiber, A. Bertram Chandler, Alan E. Nourse, Alfred Coppel, William Brittain, Frank Belknap Long, Mary Carlson, Chester S. Geier & Murray F. Yaco
