William Harvey
Emmons

UMN (Geotree)




George Melvin
Schwartz

UMN (Geotree)


Charles Frederick
Park

Stanford (Geotree)


Stephen Edward
Kesler

University of Michigan
?


Rodney C.
Ewing

University of Michigan
?


Udo
Becker

University of Michigan

Martin
Reich

Universidad de Chile
(Options)

Martin ReichX