- Thorstein Veblen
- W. D. Flatt
- Walter A. Montgomery
- Alfred North Whitehead
- Irving E. Cox
- Theodore Roosevelt
- Albert H. Buck
- Gouverneur Morris
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- Theodore Roosevelt
- J. T. Goddard
- Bertrand Russell
- Frederick Forest
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- William Wells Brown
- P. Schuyler Miller
- Henry S. Salt
- G. F. Richings
- Lucy Maynard Salmon
- Fox B. Holden
- Booker T. Washington
- Hector Macpherson
- Bertha von Suttner
- Frances Power Cobbe
- A. E. Richmond
- Francisco García Calderón