"Leary, who died in 1996, coined the phrase “Turn on, tune in, drop out” and was labeled by Richard M. Nixon as “the most dangerous man in America.” He was present in Zelig-like fashion at some of the era’s epochal events. Thousands of letters and papers from Ginsberg, Aldous Huxley, William Burroughs, Jack Kerouac, Ken Kesey, Charles Mingus, Maynard Ferguson, Arthur Koestler, G. Gordon Liddy and even Cary Grant — an enthusiastic LSD user — are in the boxes."
http://www.nytimes.com/2011/06/16/books/new-york-public-library-buys-timothy-learys-papers.html?ref=arts