Austin O'Malley & James J. Walsh
Julian Huxley
J. Ellard Gore
Thomas Henry Huxley
Henry White Warren
William F. Denning
Agnes M. Clerke
Agnes M. Clerke, A. Fowler and J. Ellard Gore
John & Edward Bruce Kirk
Cecil G. Dolmage
Oliver Wendell Holmes
William Tyler Olcott
Grant Allen
Richard A. Proctor
Robert S. Ball
Garrett P. Serviss
Camille Flammarion
