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 (Marine Ecology Tree)


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 (Neurotree)


Benno
Erdmann

Universität Berlin (Neurotree)


James Rowland
Angell

Chicago (Neurotree)


Harvey A.
Carr

Chicago (PsychTree)

Carl (C.J.) John
Warden

Chicago
(Options)

Robert
Thorndike

Columbia (Neurotree)

Donald
Super

Columbia (Neurotree)

Neal Martin
Kingston

University of Kansas (PsychTree)

Henry Wieghorst
Nissen

(Anthropology Tree)

Austin
Riesen

UC Riverside (Neurotree)

James Anderson
Gavan

UC Berkeley (Anthropology Tree)

Sherman
Ross

Columbia (Neurotree)

R.C.
Gonzales

University of Maryland (Neurotree)

Helmut E.
Adler

Yeshiva University (Neurotree)

John I.
Dalland

SUNY Potsdam (Neurotree)

Carl (C.J.) WardenX