Ernst Ludwig
Dümmler

Universität Halle-Wittenberg (History of History Tree)


Heinrich
von Sybel

University of Bonn (History of History Tree)


Theobald
Fischer

Philipps-Universität Marburg (Geotree)


Heinrich Wilhelm
Dove

Universität Berlin (Meteorology Tree)


Gustav
Karsten

Kiel University


Johannes Peter
Müller

Universität Berlin (Neurotree)


Robert Friedrich
Froriep

Charité Berlin (Neurotree)


Rudolf Ludwig Karl
Virchow

Universität Berlin (Neurotree)


Franz
Boas

Columbia



Kenneth
Pike

University of Michigan
(Options)

Ilse
Lehiste

Ohio State

Zita
McRobbie

Simon Fraser

Keith
Johnson

UC Berkeley

Daniel
Everett

Bentley University


Iris
Berent

Northeastern University

Rick
Kazman

University of Hawaii

Eric H.
Nyberg

Carnegie Mellon (MathTree)

Jeanette
Sakel

Manchester University

Miguel
Oliveira, Jr.

Universidade Federal de Alagoas

Kenneth PikeX