Nelson Rockefeller as administrator of Rockefeller Center in Manhattan, New York. Rockefeller was a Republican who was often considered to be liberal, progressive, or moderate. In an agreement that was termed the Treaty of Fifth Avenue, Rockefeller persuaded then-Vice President Richard Nixon to alter the Republican Party platform just before the 1960 Republican Convention. In his time, liberals in the Republican Party were called "Rockefeller Republicans". As Governor of New York from 1959 to 1973, Rockefeller's achievements included the expansion of the State University of New York, efforts to protect the environment, the construction of the Governor Nelson A. Rockefeller Empire State
Margaret Rockefeller Strong 1965. She then donated the corner townhouse to her cousin, David Rockefeller, who founded the Center for Inter-American Relations there. In December 1979, Margaret donated her father's estate, Villa Le Balze in Fiesole, Tuscany, Italy to Georgetown University which operates an overseas campus there. Her life can be read at "El Inútil de la Familia", book written by Jorge Edwards, a Chilean writer. Margaret Rockefeller Strong Margaret Rockefeller Strong (1897–1985) was an American activist. Margaret was the daughter of Elizabeth "Bessie" Rockefeller (1866–1906) and Dr. Charles Augustus Strong (1862–1940). Her maternal grandfather was Standard Oil co-founder John D. Rockefeller (1839–1937).