The Key Figures

Crime Files

The Key Figures

Key Figures Kate ‘Ma’ Barker: Mother of Barker gang sons George Barker: husband of Kate ‘Ma’ Barker Ma Barker’s sons - Herman, Lloyd, Arthur ‘Doc’, and Freddie Alvin Karpis: Barker-Karpis gang member George Ziegler: gang member killed by BarkersKidnap victims William Hamm: Minnesota brewer Edward Bremer: Minnesota bankerJ Edgar Hoover: Director of the FBI.