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Friedrich Adolf
Trendelenburg
Universität Berlin

Hermann
Ulrici
University of Halle


Benjamin
Peirce
Harvard (MathTree)


Charles Sanders
Peirce
Johns Hopkins


Johann Kaspar
Bluntschli
Universität München (History of History Tree)

Karl
Knies
Heidelberg University (History of History Tree)


Herbert Baxter
Adams
Johns Hopkins (History of History Tree)




Henry Pickering
Bowditch
Harvard Medical School (Neurotree)

Wilhelm
Wundt
University of Leipzig (Neurotree)


Granville Stanley
Hall
Johns Hopkins (Neurotree)


John
Dewey
Columbia



Hermann Harry
GIles
Ohio State
(Options)

Hermann GIlesX