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From Wikipedia, the free encyclopedia. In its 29 years of operation, there were 14 acknowledged attempts to escape from Alcatraz prison involving 34 inmates (two, Joseph Cretzer and Sam Shockley, tried twice). Officially, every escape attempt failed, and most participants were either killed or quickly re-captured.
June 1962 Alcatraz escape - In popular culture. 1  J. Campbell Bruce's 1963 book Escape from Alcatraz documents the 1962 escape, along with other escape attempts over the 29 years that Alcatraz Island served as a prison.