Alcatraz Island - Golden Gate National Recreation Area
Photo -- See Caption Below

Arthur “Doc” Barker in County Jail
May 1935
"Doc" Barker and Alvin Karpis were members of the notorious "Ma Barker Gang," also known as the "Barker-Karpis Gang," which terrorized the Midwest in the early and mid-1930s with bank robberies, kidnappings, and murders. "Doc" Barker was killed trying to escape from Alcatraz in 1939. Karpis served 26 years on Alcatraz, more than any other inmate.
olden Gate National Recreation Area, GOGA 18261h