David Rockefeller his graduate studies, he received a Ph.D. from the University of Chicago in 1940. After completing his studies in Chicago, he became secretary to New York Mayor Fiorello La Guardia for eighteen months in a "dollar a year" public service position. Although the mayor pointed out to the press that Rockefeller was only one of 60 interns in the city government, his working space was, in fact, the vacant office of the deputy mayor. From 1941 to 1942, Rockefeller was assistant regional director of the United States Office of Defense, Health and Welfare Services. Rockefeller enlisted in the U.S. Army
David Rockefeller Abby, John III, Nelson, Laurance, and Winthrop. Rockefeller attended the experimental Lincoln School at 123rd Street in Harlem. In 1936, Rockefeller graduated "cum laude" from Harvard University. He also studied economics for a year at Harvard and then a year at the London School of Economics (LSE). At LSE he first met the future President John F. Kennedy (although he had earlier been his contemporary at Harvard) and once dated Kennedy's sister Kathleen. During his time abroad, Rockefeller briefly worked in the London branch of what was to become the Chase Manhattan Bank. After returning to the U.S. to complete