John C.
Merriam

Carnegie Institution of Washington (Evolution Tree)


Chester
Stock

Caltech (Evolution Tree)


Charles
Palache

Harvard (Geotree)


Ian
Campbell

California Division of Mines and Geology (Geotree)


Richard Henry
Jahns

Stanford (Geotree)


Arvid M.
Johnson

Purdue (Physics Tree)

Atilla
Aydin

Stanford
(Options)

Atilla AydinX