Joseph Bonanno
The Buffalo crime family gained power during the Prohibition era through bootlegging. In 1931, the family boss, Stefano Magaddino, became an original member of The Commission, the governing body of the American Mafia. Magaddino's strongest ally on the Commission was his cousin Joseph Bonanno; the two Mafia bosses were from the same Sicilian town of Castellammare del Golfo. The Commission decided in 1931 that Stefano Magaddino and his Buffalo family would control Ontario, Canada, and that Joseph Bonanno and his Bonanno family would control Quebec, Canada. The Buffalo family remained strong and relatively united until his leadership was challenged in the 1960s. It then split into factions as they tried to assassinate Magaddino.