Jan Birger
Jansen

University of Oslo, Norway


Kirsten Kjelsberg
Osen

University of Oslo, Norway


Miguel A.
Merchan

University of Salamanca
?




Enrique
Saldaña

University of Salamanca






John B.
Watson

Johns Hopkins










Selig
Hecht

Columbia


Otto
Warburg

Kaiser-Wilhelm-Institut für Biologie (Chemistry Tree)


Paul
Karrer

Universität Zürich (Chemistry Tree)


Otto Fritz
Meyerhof

Kaiser Wilhelm Institut, Berlin (Chemistry Tree)


George
Wald

Harvard




Walter Morley
Fletcher

Cambridge (Physiology Academic Tree)


















Ralph
Gerard

Chicago


?








Treat Baldwin
Johnson

Yale (Chemistry Tree)


Arthur Joseph
Hill

Yale (Chemistry Tree)


Julian M.
Sturtevant

Yale (Chemistry Tree)


William Ralph
Smythe

Caltech (Physics Tree)


Charles Hard
Townes

UC Berkeley (Physics Tree)




Meyer B.
Jackson

UW Madison



Héctor
Rincón

University of Salamanca
(Options)

Héctor RincónX