S

• Verne Sankey (1890-1934) - Named America's first public enemy, Sankey was involved in a Denver, Colorado kidnapping. He committed suicide in the South Dakota State Penitentiary in 1934.

• Harry Sawyer - A Barker-Karpis Gang member, Sawyer was sent to Alcatraz.

• John Paul Scott - He was the only known Alcatraz inmate to conclusively reach the San Francisco shore by swimming.

• Jack Selbin - A member of the Purple Gang, Selbin spent time in Alcatraz.

Alcatraz Island today, Kathy Weiser, July, 2009.

• Ziggy Selbin - A member of the Purple Gang, Selbin was assassinated in October, 1929.

• Irving Shapiro - A member of the Purple Gang, Shapiro was assassinated in July, 1929.

• Richard Sam Shockley, Jr. (1909-1948)  - An Oklahoma bank robber and kidnapper, he was captured and sent to Alcatraz. He attempted to escape twice in 1941 and in 1946, in which officers were killed. He was executed for killing the officer on December 3, 1948.

• Edward Smith - Committed one of the first bank robberies in the United States on March 19, 1831, stealing $245,000 from the City Bank on Wall Street in New York City.

• Walton Spark - An accomplice in John Dillinger's Indiana jail breakout, Spark spent time in Alcatraz. 

• Joe Stein - A member of the Purple Gang, Stein spent time in Alcatraz.

• Robert Franklin Stroud (1890-1963) - The so-called "Birdman of Alcatraz," Stroud was a prisoner in Leavenworth, Kansas before being sent to Alcatraz. Sentenced for murder, he actually kept birds only at Leavenworth, despite his nickname. He was transferred to Alcatraz in 1942 where he stayed until 1959 when his health was failing and he was transferred to the Medical Center for Federal Prisoners in Springfield, Missouri. He died at the Springfield Center at the age of 73, after 54 years of incarceration, of which 42 were in segregation.

• William "Willie" Francis Sutton (1901-1980) - A prolific bank robber , Sutton stole as much as $2 million in his career, and spent more than half his adult life in prison.After his relief, he died in 1980 at the age of 79.

T

• Ray Terrill - An Oklahoma safe cracker in the 1920s.

• Terror Gang - See Dillinger Gang.

• Giovanni "Johnny" Torrio; aka: "The Fox," "Pappa Johnny" (1882-1957) - An Italian-American mobster who helped build the criminal empire known as the Chicago Outfit in the 1920s that would later be inherited by his protege, Al Capone. He died of a heart attack in 1957.

U

• Wilbur "Mad Dog" Underhill, Jr. (1901-1934) - Nationally headlined outlaw of the Depression era, he was the first criminal ever shot by the FBI.