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
Avery Rockefeller Avery Rockefeller Avery Rockefeller (September 11, 1903 – May 22, 1986) was an American investment banker and conservationist who was a member of the Rockefeller family. Rockefeller was born on September 11, 1903 to Percy Avery Rockefeller and Isabel Goodrich Stillman. His paternal grandparents were William Avery Rockefeller Jr. and Almira Geraldine Goodsell. His maternal grandfather was James Jewett Stillman (1850–1918), the chairman of the board of directors of the National City Bank. His father's brother, William Goodsell Rockefeller (1870–1922), married his mother's sister, Elsie Stillman (1872–1935). He attended Yale University, graduating in 1926. In 1928, Rockefeller joined the storied