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Theodore William
Richards
Harvard (Chemistry Tree)

Wilhelm Friedrich
Ostwald
Leipzig University (Chemistry Tree)

Walther
Nernst
Universität Berlin (Chemistry Tree)


Gilbert N.
Lewis
UC Berkeley (Chemistry Tree)


Christian
Christiansen
Copenhagen University (Physics Tree)

Joseph John
Thomson
Cambridge (Physics Tree)

Ernest
Rutherford
Cambridge (Physics Tree)


Niels
Bohr
Copenhagen University (Physics Tree)


Harold Clayton
Urey
UCSD (Physics Tree)


Edward Charles
Jeffrey
Harvard (Evolution Tree)


Irving W.
Bailey
Harvard (Evolution Tree)


Elso
Barghoorn
Harvard (Evolution Tree)


J. William
Schopf
UCLA (Geotree)
?


Henry Caselli (H.C)
Richards
University of Queensland (Geotree)
?


Gertrude Lilian
Elles
Cambridge (Geotree)


Dorothy
Hill
University of Queensland (Geotree)



Christopher H.
House
Penn State
(Options)

Chad
Pozarycki
Georgia Tech (Chemistry Tree)


James J.
Moran
Penn State


Randal B.
Thomas
Penn State (Chemistry Tree)


Karen E.
Smith
Boise State (Chemistry Tree)

Christopher HouseX