James
Franck

Chicago (Physics Tree)


John Torrence
Tate

UMN (Physics Tree)


Walker
Bleakney

Princeton (Physics Tree)


Joseph John
Thomson

Cambridge (Physics Tree)


Alexander William
Bickerton

Canterbury College in Christchurch (Physics Tree)


Arthur
Schuster

University of Manchester (Physics Tree)


Ernest
Rutherford

Cambridge (Physics Tree)


Paul Karl Ludwig
Drude

Universität Berlin (Physics Tree)


Emil Gabriel
Warburg

Universität Berlin (Physics Tree)


Heinrich
Rubens

Universität Berlin (Physics Tree)


James
Franck

Chicago (Physics Tree)


Patrick M.S.
Blackett

Imperial College (Physics Tree)


George T.
Reynolds

Princeton (Physics Tree)

Herbert
Gursky

Naval Research Laboratory
(Options)

Herbert GurskyX