Memorandum regarding "Johnny Mag" Mangiaracina, noting that he has a history of 48 arrests by the Kansas City Police Department, and a felony conviction for fur robbery. Mangiaracina is described as "a third-rate hoodlum" who is affiliated with Kansas City boss Charles Binaggio. Thomas Simone is listed as his "constant friend and inseparable companion."
Diagram presented as an exhibit before the U.S. Senate Special Committee to Investigate Organized Crime in Interstate Commerce, popularly known as the Kefauver Committee. The diagram maps the movement of opium from "legitimate" producers Turkey, Persia, and India, and traces the drugs through refinment into heroin, to French and Italian ports where the drugs are distributed to New York and Cuba, then on to Mafia organizations in Tampa and New Orleans before coming to Kansas City and being distributed to consumers.
Memorandum regarding Joe DiGiovanni's criminal history, listing charges beginning with a 1920 Prohibition violation to which he plead guilty, and spanning through 1930. DiGiovanni was charged with numerous Prohibition and other liquor violations.
FBI report for Gus Gargotta, including Prohibition violations, bank robbery, murder, and other charges in Kansas City, Omaha, and Wichita. The document also includes biographical information and a physical description.
Memorandum describing testimony given by Walt Rainey, a member of the Joe Shannon-led Rabbit Club and associate of Max Jaben and "Johnny Mag" Mangiaracina. Rainey is described as under indictment in state court for operating a "policy game" and in federal court for tax fraud.
Memorandum regarding James DeSimone, an associate of Kansas City and St. Louis organized crime figures and suspeted Black Hand killer. He also served time on narcotics charges and is believed to have been involved in the murder of Joe Patito, a John Lazia pallbearer.
Letter written by Mary Bonomo, to be provide information to the FBI in the event of her death. She writes that she fears for her life due to a debt owed to her by Chuck Casciopipa, and due to knowledge of other crimes she and her husband were suspected of having. She also feared her imprisoned husband Mario's brothers Tom and Sam, as well as Joe DiGiovanni.