With the end of the Castellammarese War, a major conflict between the Sicilian clans in New York, Bonanno became boss of the reorganized Bonanno family and Bonventre became a caporegime, the captain of a crew of mobsters. That same year, Bonanno and Bonventre purchased a dairy farm near Middletown, New York in the Catskill Mountains. The farm's main product was mozzarella cheese; Bonanno and Bonventre used their mob influence to eventually dominate the production of this cheese in New York State, Wisconsin, and Vermont. Bonventre's other business ventures included a garment factory in Brooklyn. At some point, Bonventre was promoted to family underboss, directly under Bonanno.