Famous Alcatraz Inmates
Alcatraz held about 1,500 men across its 29 years as a federal penitentiary — never more than around 300 at a time. It was built for the prisoners other prisons couldn’t handle: escape risks, troublemakers, and a handful of celebrity criminals whose names made “The Rock” a legend.
Al Capone (1934–1939)
The most famous inmate in the island’s history arrived on the very first trainload of prisoners in August 1934. At Atlanta’s federal penitentiary, Capone had bought comfort and influence; Alcatraz was designed to strip exactly that away. Here he was inmate AZ-85 — no special treatment, no newspapers naming him, no visitors outside immediate family. He spent much of his sentence in declining health from late-stage syphilis and played banjo in the inmate band, the Rock Islanders. He was transferred off the island in 1939.
Robert Stroud — the “Birdman of Alcatraz” (1942–1959)
The nickname is one of history’s great misnomers: Stroud kept and studied birds at Leavenworth, where he became a genuinely respected authority on canary diseases — but he was never allowed a single bird at Alcatraz. A convicted murderer considered too dangerous for the general population, he spent his 17 Alcatraz years in segregation and the prison hospital wing. The 1962 Burt Lancaster film cemented the legend, gentle-genius portrayal and all.
George “Machine Gun” Kelly (1934–1951)
The Prohibition-era gangster and kidnapper was, by most accounts, a model prisoner on the island — working in the industries building and earning the nickname “Pop Gun” Kelly from inmates who found the fearsome reputation didn’t match the man.
Alvin “Creepy” Karpis (1936–1962)
The last “Public Enemy #1” of the Depression era and the longest-serving inmate in Alcatraz history — roughly 26 years on the island. Karpis was personally arrested by J. Edgar Hoover, at least as the FBI told the story.
Frank Morris and the Anglin Brothers (until June 1962)
Not famous when they arrived — famous forever after they left. The three men behind the 1962 escape were career bank robbers whose disappearance into the bay became the island’s defining mystery. Read the full escape story.
Walk Their Cellblocks
The “Doing Time” audio tour takes you through B and C blocks where these men lived, past the segregation cells of D Block, and into the dining hall the inmates called the “gas chamber” for the tear gas canisters mounted in its ceiling. Book a day tour or experience the cellhouse after dark on the night tour.
More history: Alcatraz Island history · Escape attempts · The 1969 Occupation
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