What is the single word name of the island that housed a federal prison from 1934 to 1963?
Alcatraz (disambiguation): Alcatraz Island, or simply Alcatraz, is an island in San Francisco Bay, California. Alcatraz Island:  The small island was developed with facilities for a lighthouse, a military fortification, a military prison (1868), and a federal prison from 1934 until 1963.
Alcatraz