June 1962 Alcatraz escape attempt

wikipedia.org

Alcatraz escape of June 1962 | Planning, Escapees, & Facts

britannica.com

Alcatraz Island - Golden Gate National Recreation Area

nps.gov

New evidence in 60-year-old Alcatraz prison break

fox59.com

55 Years Later, Man Who Escaped Alcatraz Sends This Note

historictalk.com

https://www.nps.gov/nr/travel/ca/ca40.htm#:~:text=Begun%20in%201849%2C%20the%20fortress,San%20Francisco%20from%20Confederate%20raiders.

Alcatraz | Prison, Island, History & Facts

britannica.com

Alcatraz Island

wikipedia.org