Fritz
Baltzer

University of Berne


Ernst
Hadorn

Universität Zürich


Walter
Gehring

University of Basel, Yale


Roger J.
Williams

UT Austin (Chemistry Tree)


George Wells
Beadle

Caltech (FlyTree)


Herschel K.
Mitchell

Caltech (FlyTree)


Thomas Hunt
Morgan

Caltech (FlyTree)


André Michel
Lwoff

Institut Pasteur (ID Tree)


Jacques Lucien
Monod

Institut Pasteur


David S.
Hogness

Stanford (FlyTree)


Spyros
Artavanis-Tsakonas

Harvard Medical School

Katerina
Markopoulou

Omaha University
(Options)

Katerina MarkopoulouX