Charles F.
Hottes

UIUC (Terrestrial Ecology Tree)








Charles Albert
Shull

Chicago (Terrestrial Ecology Tree)


Lawrence Milburn
Rohrbaugh

University of Oklahoma
?










Frits Warmolt
Went

Washington University (Chemistry Tree)


Samuel Barnett
Schryver

Imperial College (Chemistry Tree)




Thomas Hunt
Morgan

Caltech (FlyTree)


Alfred Henry
Sturtevant

Caltech (Neurotree)


Hugo
de Vries (DeVries)

Amsterdam (Evolution Tree)


Eduard Adolf
Strasburger

Universität Bonn




Hugo R.
Kruyt

Utrecht (Chemistry Tree)


Hendrik G.
Bungenberg de Jong

Leiden (Chemistry Tree)


Paul
Jaccard

ETH Zürich (Chemistry Tree)


Albert
Frey-Wyssling

ETH Zürich (Chemistry Tree)


James Frederick
Bonner

Caltech (Neurotree)



David Edward
Koeppe

Texas Tech
(Options)

Robert R
Klein

Texas A & M

David KoeppeX