George Sylvester
Morris

Johns Hopkins (Philosophy Tree)


Charles Sanders
Peirce

Johns Hopkins (Philosophy Tree)


Herbert Baxter
Adams

Johns Hopkins (History of History Tree)


Granville Stanley
Hall

Johns Hopkins (Neurotree)


John
Dewey

Columbia (PsychTree)


Charles Sanders
Peirce

Johns Hopkins (Philosophy Tree)


Jeffries
Wyman

Harvard (Neurotree)


Louis
Agassiz

Harvard (Neurotree)


William
James

Harvard (Neurotree)


Friedrich Adolf
Trendelenburg

Universität Berlin (Philosophy Tree)


Christoph
Sigwart

(Neurotree)


Otto
Liebman

(Neurotree)


Hermann
Ebbinghaus

Universität Berlin (Neurotree)


Eduard
Zeller

Universität Berlin (Neurotree)


Hermann
Bonitz

University of Vienna


Benno
Erdmann

Universität Berlin (Neurotree)


James Rowland
Angell

Chicago (Neurotree)


Jacob Robert
Kantor

University of Maryland (PsychTree)


William
James

Harvard (Neurotree)


Josiah
Royce

Harvard (Philosophy Tree)


James McKeen
Cattell

Penn (Neurotree)


Robert Sessions
Woodworth

UCLA (PsychTree)


Rudolf Hermann
Lotze

Berlin (Neurotree)


Granville Stanley
Hall

Johns Hopkins (Neurotree)


Wilhelm
Wundt

University of Leipzig (Neurotree)


Francis
Galton

Cambridge (Neurotree)


James McKeen
Cattell

Penn (Neurotree)


Albert Theodore
Poffenberger

Columbia (Neurotree)


Roland C.
Davis

Indiana University (Neurotree)

Robert S.
Daniel

(Options)

Robert DanielX