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There were, however, prisoners who decided not to wait for a transfer to another prison. Over the 29 years (1934-1963) that the Federal prison operated, 36 men (including two who tried to escape twice) were involved in 14 separate escape attempts. Twenty-three were caught, six were shot and killed during their escape, and two drowned. Two of the men who were caught were later executed in the gas chamber at the California State Prison at San Quentin for their role in the death of a correctional officer during the famous May 2-4, 1946, “Battle of Alcatraz” escape attempt.
Whether or not anyone succeeded in escaping from Alcatraz depends on the definition of “successful escape.” Is it getting out of the cellhouse, reaching the water, making it to land, or reaching land and not getting caught? Officially, no one ever succeeded in escaping from Alcatraz, although to this day there are five prisoners listed as “missing and presumed drowned.”
Following are summaries of the 14 escape attempts: