It started as a military fort, not a prison
Alcatraz was a US Army fortress from the 1850s, built to defend San Francisco Bay during the Gold Rush. It became a military prison during the Civil War, holding Confederate sympathizers and deserters. It did not become a federal civilian penitentiary until 1934 — 80 years after the first prisoners arrived.
Families lived on the island — and liked it
About 60 families of prison guards lived on Alcatraz at any given time. Children took a boat to school in San Francisco every morning. Wives ran a social club. Guards' kids played on the parade ground. The families reported a higher quality of life than the average San Franciscan at the time — their housing was free, the island was safe, and the view was unbeatable.
Source: National Park Service, "The Families of Alcatraz" oral history project.
There were 14 escape attempts — not "none"
36 prisoners tried to escape across 14 separate attempts. 23 were caught, 6 were shot and killed, 2 drowned, and 5 are officially listed as "missing and presumed drowned." The June 1962 escape — Frank Morris and brothers John and Clarence Anglin — is the one everybody knows. It is also the one still classified as unsolved by the US Marshals Service. They dug through cell walls with sharpened spoons, left dummy heads in their beds, and were never found. The Marshals still maintain an active case file.
The prison closed because it was too expensive, not because it failed
Alcatraz did not close because escapes made it look bad. It closed in 1963 because it cost three times more per prisoner than any other federal prison. Every gallon of freshwater had to be shipped in by barge. The salt air corroded the buildings continuously. It was an economic decision, not a security one.
The 1969-1971 Native American occupation
After the prison closed, a group of Native American activists occupied the island for 19 months, claiming it under the 1868 Treaty of Fort Laramie, which allowed Native Americans to reclaim surplus federal land. The occupation ended in June 1971 after negotiations broke down. Graffiti from the occupation is still visible on the water tower and is federally protected as a historic artifact.
Night tour is genuinely better than day tour
The night tour has fewer people, lower lighting, and the rangers tell the creepier stories. It sells out 2-3 weeks in advance. Book early.
Hear the story while you are on the island
Our Alcatraz audio guide covers the escapes, the families, and why the prisoners had the best view in the city. Free 60-second preview.