Alcatraz guards, prisoners reunite

Former guards, prisoners and other Alcatraz residents were travelling to "The Rock" in San Francisco this weekend to commemorate its 75th anniversary as a U.S. federal prison.

Many of those planning to attend included children of guards who grew up on the island and are known as the Island Gang.

The event is open to the public but sold out weeks ago.

Alcatraz started as a fort, then became a U.S. army disciplinary barracks. The Bureau of Prisons took over in 1934 and housed some of the nation's most notorious inmates there, including Al Capone, until 1963.

The island became part of the Golden Gate National Recreation Area in 1973 and remains a popular tourist destination.