George Sylvester
Morris

Johns Hopkins (Philosophy Tree)


Charles Sanders
Peirce

Johns Hopkins (Philosophy Tree)




John
Dewey

Columbia (PsychTree)


Frank
Tong

Vanderbilt




Thomas H.
Carr

Michigan State


John A.
Dewey

Michigan State


Charles Sanders
Peirce

Johns Hopkins (Philosophy Tree)








Friedrich Adolf
Trendelenburg

Universität Berlin (Philosophy Tree)






Hermann
Ebbinghaus

Universität Berlin


Eduard
Zeller

Universität Berlin


Hermann
Bonitz

University of Vienna


Benno
Erdmann

Universität Berlin




Jacob Robert
Kantor

University of Maryland (PsychTree)






Wilhelm
Wundt

University of Leipzig






Friedrich
Goltz

Kaiser-Wilhelms-Universität Straßburg


Jacques
Loeb

Rockefeller Institute for Medical Research








John
Dewey

Columbia (PsychTree)


John A.
Dewey

Michigan State




Hermann
Ebbinghaus

Universität Berlin


Benno
Erdmann

Universität Berlin








Charles Sanders
Peirce

Johns Hopkins (Philosophy Tree)










George Sylvester
Morris

Johns Hopkins (Philosophy Tree)


Charles Sanders
Peirce

Johns Hopkins (Philosophy Tree)


Josiah
Royce

Harvard (Philosophy Tree)






Wilhelm
Wundt

University of Leipzig


Francis
Galton

Cambridge






Winthrop
Kellogg

Florida State

Parker E.
Lichtenstein

Indiana University of Pennsylvania
(Options)

Parker LichtensteinX