By 1960s many of Bonanno friends and allies in those families were dead, locked up, or retired For Buffalo top spot it would have been Peter Magaddino Sr or Salvatore Pieri Sr, Bonanno would have counted on Rochester, Hamilton, and Youngstown to take the rackets away from Magaddino. Salvatore Pieri Sr would eventually become boss.

Gambino, best bet would Joseph Colozzo, Peter Ferrara, or Carmine Fattico.
Lucchese, this is the hardest one to pin down cause that family was loyal to Lucchese. Paul Vario, and Ciro
Giampaolo are the only ones I can think of Bonanno trying to approach.

Paul Castellano was being used a messenger .