Carlton J.H. Hayes (1882-1964), appointed lecturer in European history in 1907, full professor in 1919 and Seth Low Professor in 1935. Hayes’ scholarship focused on European political, cultural and social history. Hayes served as captain of the United States Military Intelligence Division of the General Staff during World War I, as US ambassador to Spain between 1942-1944 and as president of the American Historical Association in 1945. 

Read Hayes’ letter to President Roosevelt as ambassador to Spain, June 30, 1942.