?


Don K.
Price

Harvard


Gustav
von Schmoller

Universität Berlin (History of History Tree)


Tomáš Garrigue
Masaryk

University of Prague (Neurotree)


Alfred
Weber

University of Heidelberg (Neurotree)


Carl J.
Friedrich

Harvard (History of History Tree)


Alexander Dunlop
Lindsay

Oxford University UK




?


Murray
Rossant

Twentieth Century Fund (now the Century Fund)
?




Frank J.
Popper

Princeton

Justin
Hollander

Tufts
(Options)

Justin HollanderX