Gennaro had correspondents with Morello, Terranovas, his uncle Luciano Gennaro, his cousin who has the same name who was boss of Corleone, Francesco Cascio, Leoluca Cutrera, Calogero Rao, Vincenzo Panepinto. He was definitely boss in 1909, and was stepping down between 1915-1916 as he was losing his mobility skills, except for the Morellos and Terranovas, he is related to all of them some way with Gennaro, Cascio, and Panepinto being the most prominent and easy to trace with the Corleone mafia.

Michael position after was Capo and unofficial Consigliere, he was elder statesman and had operations in both Fort Worth and Dallas TX. He also communicated to Los Angeles through Jack Dragna. Besides his sons, he sponsored Salvatore Lobello, and Joe Civello (1928) as Joe was 26 at the time.