Oscar Herrmann
George Santayana
John Lothrop Motley
William J. Long
Edward T. McLaughlin
Jetta Sophia Wolff
William G. Stevenson, M.D.
A. J. Rosanoff
Raúl de Cárdenas y Echarte
Andrews William
Charles A. Dana
H. A. Guerber
Scott Nearing
H. N. Minnigh
Alfred Seymour
Elizabeth A. Reed
Ernst Haeckel
Edward W. Byrn
Maud Wilder Goodwin
James Fairfax McLaughlin