Angelo
Battelli

University of Pisa


Luigi
Puccianti

University of Pisa


Theodor
Zincke

University of Marburg (Chemistry Tree)


William
Ramsay

UCL (Chemistry Tree)




Otto
Hahn

Kaiser Wilhelm Institute for Chemistry (Chemistry Tree)


Ludwig
Boltzmann

Vienna University


Franz Serafin
Exner

Vienna University


Max
Planck

Universität Berlin


Lise
Meitner

Kungliga Tekniska högskolan


William
Hallock

U.S. Geological Survey






Walther
Nernst

Universität Berlin (Chemistry Tree)






Franco
Rasetti

Johns Hopkins


Edward C.
Booth

Boston University

Benson T.
Chertok

American University
(Options)


Cynthia
Keppel

Hampton University

James A.
Dunne

Mississippi State University (Astronomy Tree)

Nawal
Benmouna

American University

Benson ChertokX