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Benjamin
Peirce
Harvard (MathTree)


Charles Sanders
Peirce
Johns Hopkins (Philosophy Tree)


Richard
Owen
British Museum of Natural History


Carl F. P.
von Martius
Universität München

Lorenz
Oken
Universität Zürich (Physiology Academic Tree)

Ignaz
Döllinger
University of Munich

Andreas
Röschlaub
University of Munich









Ernst Heinrich
Weber
Universität Leipzig

Moritz Wilhelm
Drobisch
University of Leipzig

Christian Hermann
Weiße
Universität Leipzig

Johann Christian August
Clarus
Universität Leipzig

Alfred Wilhelm
Volkmann
Universität Halle-Wittenberg

Gustav Theodor
Fechner
Leipzig University




Henry Pickering
Bowditch
Harvard Medical School

Wilhelm
Wundt
University of Leipzig


Robert Wilhelm Eberhard
Bunsen
Universität Heidelberg (Chemistry Tree)

Karl Ewald
Hasse
Universität Göttingen

Johannes Peter
Müller
Universität Berlin

Hermann
von Helmholtz
Physikalisch-Technische Reichsanstalt


Wilhelm
Wundt
University of Leipzig


William
Hopkins
Cambridge (Physics Tree)


Francis
Galton
Cambridge





Leta
Hollingworth
Columbia Teacher's College
(Options)

Margaret Sidney
Quayle
University of Alabama

Raymond D.
Fowler
University of Tennessee

Carl Ransom
Rogers
Center for Studies of the Person (PsychTree)

Frederick
Fiedler
University of Washington

William U.
Snyder
Penn State (PsychTree)

Arthur W.
Combs
University of Northern Colorado (PsychTree)

Thomas
Gordon
Center for Studies of the Person (PsychTree)

Laura North
Rice
York University (PsychTree)

Eugene
Gendlin
(Writing Studies Tree)

Godfrey T
Barrett-Lennard
Center for Studies of the Person (PsychTree)

Thereza Pontual
de
University of Brasília, Brazil

Rosalind Dymond
Cartwright
Rush University Medical Center (PsychTree)

Sidney J.
Blatt
Yale (PsychTree)

Leta HollingworthX