George Sylvester
Morris

Johns Hopkins (Philosophy Tree)


Charles Sanders
Peirce

Johns Hopkins (Philosophy Tree)




John
Dewey

Chicago (PsychTree)








Friedrich Adolf
Trendelenburg

Universität Berlin (Philosophy Tree)






Hermann
Ebbinghaus

Universität Berlin


Eduard
Zeller

Universität Berlin


Hermann
Bonitz

University of Vienna


Benno
Erdmann

Universität Berlin






Friedrich Adolf
Trendelenburg

Universität Berlin (Philosophy Tree)


George Sylvester
Morris

Johns Hopkins (Philosophy Tree)
?


Charles Sanders
Peirce

Johns Hopkins (Philosophy Tree)




Henry Pickering
Bowditch

Harvard Medical School




John
Dewey

Chicago (PsychTree)
?




Carl F. P.
von Martius

University of Munich


Ignaz
Döllinger

University of Munich


Andreas
Röschlaub

University of Munich










Karl Leonhard
Reinhold

Christian-Albrechts-Universität zu Kiel


Georg Ludwig
König

Gymnasium at Eutin


Johann Gottfried Jakob
Hermann

University of Leipzig (Philosophy Tree)


August
Boeckh

Universität Berlin


Friedrich Adolf
Trendelenburg

Universität Berlin (Philosophy Tree)
?


?




Hermann
Ebbinghaus

Universität Berlin


Ferdinand Christian
Baur

Universität Tübingen (Theology Tree)


Eduard
Zeller

Universität Berlin


Johann Gottfried Jakob
Hermann

University of Leipzig (Philosophy Tree)


Karl
Lachmann

Universität Berlin


August
Boeckh

Universität Berlin


Hermann
Bonitz

University of Vienna


Benno
Erdmann

Universität Berlin



Walter S.
Hunter

(Options)

Wayne
Dennis

UVA (PsychTree)

Roger
Russell

University of Pittsburgh (PsychTree)


Douglas
Anger

University of Missouri

George Bela
Kish

University of Maine (PsychTree)



Murray
Sidman

New England Center for Children

Thom
Verhave

Arizona State

Ralph F.
Hefferline

Columbia (PsychTree)

Dick
Malott

Western Michigan University

Leonard
Krasner

UCLA (PsychTree)


James
Dinsmoor

Indiana University

Eli E.
Kapostins

Wagner College


Gerald
Pascal

Brown (PsychTree)

Henry Charles
Rickard

University of Alabama (PsychTree)


L. Benjamin
Wyckoff

Emory (PsychTree)


Nathan
Azrin

NOVA Southeastern University (PsychTree)


Keller
Breland

University of Arksas

Douglas
Anger

University of Missouri

William H.
Morse

Harvard Medical School



Meg
Waraczynski

U. Wisconsin, Whitewater

Joel
Greenspoon

University of North Texas


Lewis R.
Gollub

University of Maryland


John B.
Carroll

UNC Chapel Hill

A. Charles
Catania

University of Maryland, Baltimore County (PsychTree)

William K.
Estes

Indiana University

Ogden R.
Lindsley

University of Kansas (PsychTree)

Allen
Neuringer

Reed College

Frances K.
McSweeney

WSU (PsychTree)

Lloyd E.
Homme

Teaching Machines Inc. (PsychTree)

Nancy K.
Mello

Harvard Medical School


Walter HunterX