Michael Rockefeller claims, no remains or other proof of his death have ever been discovered. Rockefeller was the fifth and last child of Mary Todhunter Rockefeller and Nelson Rockefeller. He was the third son of seven children fathered by Nelson Rockefeller, and he had a twin sister, Mary. After attending The Buckley School in New York, and graduating from the Phillips Exeter Academy in New Hampshire, where he was a student senator and exceptional varsity wrestler, Rockefeller graduated "cum laude" from Harvard University with a B.A. in history and economics. In 1960, he served for six months as a private in the
Rockefeller Center assistant, Lucienne Bloch.) Rivera's fresco in the Center was replaced with a larger mural by the Catalan artist Josep Maria Sert, titled "American Progress", depicting a vast allegorical scene of men constructing modern America. Containing figures of Abraham Lincoln, Mahatma Gandhi, and Ralph Waldo Emerson, it wraps around the west wall of 30 Rockefeller Plaza's Grand Lobby. In its earliest years, Rockefeller Center received largely negative and pessimistic reviews from architectural critics. The most cynical opinion came from renowned architectural scholar Lewis Mumford, who so hated the "weakly conceived, reckless, romantic chaos" of the March 1931 plans for Rockefeller Center