- Jane Addams
- Anthony M. Ludovici
- Gerhart Hauptmann
- Bertha von Suttner
- Bertha von Suttner
- Alan Edward Nourse
- Mrs. Alex. McVeigh Miller
- Charles Homer Haskins
- Frederick J. Libby
- Howard Futhey Brinton
- Paule Régnier
- Bertha von Suttner
- Sydney C. Grier
- Eleanor Roosevelt
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- L. P. Gratacap
- Prentiss Ingraham
- Jacques Bainville
- William E. Barton
- Bertha von Suttner
- James Marion Shull
- G. K. Chesterton
- Romain Rolland
- Rufus M. Jones