Stephen Pierce Duggan, Sr. was a professor of diplomatic history

Diplomatic history

Diplomatic history deals with the history of international relations between states. Diplomatic history can be different from international relations in that the former can concern itself with the foreign policy of one state while the latter deals with relations between two or more states...

 at the College of the City of New York

City College of New York

The City College of the City University of New York is a senior college of the City University of New York , in New York City. It is also the oldest of the City University's twenty-three institutions of higher learning...

, who founded The Institute of International Education in 1919, together with Nobel Laureates Elihu Root

Elihu Root

Elihu Root was an American lawyer and statesman and the 1912 recipient of the Nobel Peace Prize. He was the prototype of the 20th century "wise man", who shuttled between high-level government positions in Washington, D.C...

 and Nicholas Murray Butler. Stephen P. Duggan, Sr. was the first president of The Institute of International Education and director of Council on Foreign Relations

Council on Foreign Relations

The Council on Foreign Relations is an American nonprofit nonpartisan membership organization, publisher, and think tank specializing in U.S. foreign policy and international affairs...

(1921–1950).

Works

Stephen P. Duggan, The League of Nations: The Principle and the Practice (Boston, 1919).