- William Lloyd Garrison
- Herbert Spencer
- Roger Pilon
- Douglas B. Rasmussen
- Samuel Brittan
- Richard Overton
- Lysander Spooner
- Isabel Paterson
- Sarah Grimké
- Marie-Luise Kreuter
- Angelo M. Codevilla
- Bo Sánchez
- Suzanne O'Dea Schenken
- Robert H. Zieger
- Antonio Martino
- Richard Cobden
- Lynn Scarlett
- Earl C. Ravenal
- Michael Rothschild
- Richard Epstein