Joseph
Grinnell

UC Berkeley




William Donald
Bowen

Dalhousie University


Theodosius
Dobzhansky

Columbia University, Rockefeller University (FlyTree)








Curtis
Strobeck

University of Alberta (Cell Biology Tree)


Roger
Mead

University of Reading


Robert
Smith

University of Reading








David
Coltman

University of Alberta

Aaron B.
Shafer

University of Alberta
(Options)

Aaron ShaferX