One: The Barkers Abdo and Daughters, Bloomington, MN, Winter, Robert (2000) Mean Men: The Sons of Ma Barker Routledge, Danbury, Connecticut, deFord, Miriam Allen (1970) The Real Ma Barker: Mastermind of a Whole Family of Killers Ace, New York Morton, James (2012) The Mammoth Book of Gangs Running Press Book Publishers, Philadelphia, PA, Perkins; Jack; Drummond, John; and Cara, Mark (1996) Ma Barker Crime Family Values (television documentary on VHS tape) A & E Home Video, New York, Federal Bureau of Investigation. Barker-Karpis Gang (summary). Washington: GPO, 1937. <http://foia.fbi.gov/filelink.html?file=/barksumm/barksum1.pdf> External links Encyclopedia of Oklahoma History and Culture – Barker Gang Ma Barker & Son Morgue Photograph Alvin Karpis Barker-Karpis Gang Summary FBI file 1873 births 1935 deaths Deaths by firearm in Florida Depression-era gangsters People from Ash Grove, Missouri People shot dead by law enforcement officers in the United States American female organized crime figures