Theodor
Mommsen

Berlin Academy of Sciences (History of History Tree)


Johann Gustav
Droysen

Christian-Albrechts-Universität zu Kiel (History of History Tree)


Heinrich Rudolf Hermann Friedrich
von Gneist

Universität Berlin (History of History Tree)


John William
Burgess

Columbia (History of History Tree)


Bruno
Hildebrand

University of Marburg (History of History Tree)


Karl
Knies

University of Heidelberg (History of History Tree)


Richmond
Mayo-Smith

Columbia (Econometree)


Walter Francis
Willcox

UW Madison (Econometree)

Frank Wallace
Notestein

Princeton
(Options)

Frank NotesteinX