Record

Agency history

1934/1963

Federal Bureau of Prisons

Alcatraz (Federal Bureau of Prisons history page)

The Bureau of Prisons' history page on Alcatraz names Al Capone among the well-known criminals who did time there, and says most of its prisoners were not well-known gangsters.

Date
1934/1963
Kind
agency-history
Retrieved
2026-10-11
Rights
Text published by the Federal Bureau of Prisons on bop.gov. A United States government work, public domain under 17 U.S.C. § 105.

This is the Bureau of Prisons’ own historical page on the penitentiary, an institutional essay rather than an inmate record. It states that the island was transferred from the Army to the Department of Justice in 1933, and that “several well-known criminals, such as Al Capone, George "Machine-Gun" Kelly, Alvin Karpis … and Arthur "Doc" Barker did time on Alcatraz.”

The page adds that most prisoners on the island were not well-known gangsters, that the average population was about 260 to 275, and that capacity was 336. It does not give Capone’s dates or register number; those are on the warden’s notebook page and the National Archives inmate list. The Bureau’s timeline lists the opening of USP Alcatraz in 1934 as its first maximum-security prison and does not name Capone.