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This FBI organized-crime file concerns Gaspare Di Gregorio, whom the Bureau identified as the leader of the Di Gregorio faction, formerly associated with the Bonanno crime family, during the conflict that followed Joseph Bonanno's disappearance. The released material includes New York field-office memoranda, teletypes, intelligence summaries, newspaper clippings, surveillance-related reporting, and referrals concerning possible tax information. Records visible in the OCR span 1965 to 1967 and discuss Di Gregorio's reported succession, alleged underboss Peter Crociata, federal grand-jury activity, and contacts or disputes involving Joseph Bonanno and Stefano Magaddino. A December 1966 criminal-intelligence summary lists 74 identified members of the Di Gregorio 'family,' including members in Canada and Italy.

FBI file number: 92-8172 | Documents span: 1965-1967 | Released in 4 parts
Names in this file: Gaspare Di Gregorio, Joseph Bonanno, Peter Crociata, Stefano Magaddino, Joseph Magliocco, Sam Giancana, Gerardo Catena, Thomas Eboli, Carlo Gambino, Thomas Lucchese, Robert M. Morgenthau
Subjects: organized crime, La Cosa Nostra, Bonanno family, grand jury, criminal intelligence, New York