50 years ago on March 21, 1963, famed Alcatraz Prison was ordered closed by Attorney General Robert Kennedy.
In the first photo, guard Gordon Gronzo leaves his station at the dock tower for the last time. (Photo by Keith Dennison / Oakland Tribune Staff Archives)
Photo 2: April 1957 aerial (Photo by Russ Reed Plane flown by Warren Boggess / Oakland Tribune Staff Archives)
Photo 3: January 17, 1968 - Inmate graffiti inside Alcatraz (Russ Reed / Oakland Tribune Staff Archives)
Photo 4: March 16, 1956 - A guard on the main cell block during the first press open house. (Oakland Tribune Staff Archives)
Slideshow of the prison then and now: http://photos.mercurynews.com/2013/03/20/tourists-flock-to-alcatraz-island-50-years-after-prison-closes/