William Gilson
Farlow

Harvard (Mycotree)


Roland
Thaxter

Harvard (Mycotree)


Edward Charles
Jeffrey

Harvard (Evolution Tree)




Winslow R.
Briggs

Carnegie Institution for Science




Ernest Shaw
Reynolds

Washington University










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

Amsterdam (Evolution Tree)


Eduard Adolf
Strasburger

Universität Bonn (Marine Ecology Tree)




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)



Steven J.
Britz

USDA Light and Plant Growth Laboratory
(Options)

Steven BritzX