- W. J. Turner
- Anthony M. Ludovici
- Lionel R. McColvin
- Bertha von Suttner
- Murray Leinster
- Heinrich Lhotzky
- Ray Cummings
- Victoria C. Woodhull
- R. R. Winterbotham
- Albert L. Latter
- Sydney C. Grier
- Edward S. Van Zile
- Marie Corelli
- Raymond E. Banks
- Bertrand Russell
- Robert Donald Locke
- Cicely Hamilton
- Clair Price
- Kris Neville
- Robert Emmett McDowell
- Bertha von Suttner
- Carl Jacobi
- William Morgan
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- Ronald Arbuthnott Knox
- M. L. Campbell
- Wilhelm Bölsche