William Draper
Harkins

University of Montana, University of Chicago


Hamilton Perkins
Cady

University of Kansas (Chemistry Tree)


George Ernest
Gibson

UC Berkeley (Chemistry Tree)


Wendell Mitchell
Latimer

UC Berkeley (Chemistry Tree)


Gilbert N.
Lewis

UC Berkeley (Chemistry Tree)


Niels
Bohr

Copenhagen University




Willard Frank
Libby

Chicago (Chemistry Tree)


Richard L.
Wolfgang

Yale (Chemistry Tree)

Richard L.
Kaufmann

UNH
(Options)

Richard KaufmannX