Friedrich Ludwig Gottlob
Frege

University of Jena (Philosophy Tree)




Moritz
Schlick

Universität Wien (Philosophy Tree)












Lee Edward
Travis

University of Iowa


Herbert Henri
Jasper

Université de Montréal


Seth K.
Sharpless

CU Boulder
?


Stephen E.
Glickman

UC Berkeley




Clinton
Woolsey

UW Madison






Frank Rattray
Lillie

Chicago (DevTree)


Leigh
Hoadley

Harvard (Cell Biology Tree)


Fritz
Baltzer

University of Berne


Gerhard
Fankhauser

Princeton (Cell Biology Tree)


James
Murphy

Rockefeller (Cell Biology Tree)


Albert
Fischer

Kaiser Wilhelm Institut, Berlin


Albert
Claude

Universite Catholique de Louvain, Rockefeller University


Keith R.
Porter

Rockefeller Institute for Medical Research




Oscar
Hertwig

Universität Berlin


Giuseppe
Levi

University of Torino


Hans
Spemann

Universität Freiburg


Viktor
Hamburger

Washington University




Eric Keightley
Rideal

Cambridge (Chemistry Tree)


Paley
Johnson

Cambridge (Chemistry Tree)


Farrington
Daniels

UW Madison (Chemistry Tree)


Peter J. W.
Debye

Cornell (Physics Tree)


John Warren
Williams

UW Madison (Chemistry Tree)





Frank
Longo

Stanford
(Options)

Frank LongoX