Alcatraz Island 1906 San Francisco earthquake, civilian prisoners were transferred to Alcatraz for safe confinement. On March 21, 1907, Alcatraz was officially designated as the Western U.S. Military Prison, later Pacific Branch, U.S. Disciplinary Barracks, 1915. In 1909 construction began on the huge concrete main cell block, designed by Major Reuben Turner, which remains the island's dominant feature. It was completed in 1912. To accommodate the new cell block, the Citadel, a three-story barracks, was demolished down to the first floor, which was actually below ground level. The building had been constructed in an excavated pit (creating a dry "moat") to enhance
Alcatraz Island in popular culture E. Gaddis and then adapted into a film in 1962, with Burt Lancaster playing the lead role. The 1995 film "Murder in the First" depicts a man who spends three years in solitary confinement at the prison. One of the prisoners, Kyle Oberholzer, was charged with rape, murder and fornicating. Many films and television series have exploited Alcatraz Island's reputation as a prison from which it was almost impossible to escape. Don Siegel's 1979 thriller "Escape from Alcatraz" chronicles the story of Frank Morris and brothers John and Clarence Anglin, who escaped from Alcatraz in 1962, although it is not