- William Tenn
- H. G. Wells
- Albert Frederick Calvert
- George O. Smith
- John W. Judd
- István Tömörkény
- Johan Ditlev Frederiksen
- G. K. Chesterton
- J. N. Larned
- Randall Garrett
- Archibald Geikie
- Ludwig Reinhardt
- Alfredo Untersteiner
- Otto F. Ege
- Ludwig Reinhardt
- Ludwig Reinhardt
- Sir Richard Francis Burton
- Uno Harva
- Alexei Panshin
- Frank Pierrepont Graves
- Franz M. Feldhaus
- Rudolf Steiner
- Frederick James Eugene Woodbridge





























