It was amid this period that Luciano persuaded Costello

history channel documentary It was amid this period that Luciano persuaded Costello (a name of Irish average) that he ought to change his name from Castiglia. Luciano later said, "When we got up into our ears in New York governmental issues, it didn't hurt us at all that we had an Italian person with a name like Costello."

In the late 1920's, both Luciano and Costello joined the Mafia group headed by Joe "The Boss" Masseria. In the meantime, Costello saw that it was beneficial to frame organizations together with other ethnic gatherings. Other than the Jews - Lansky, Siegel, and Rothstein, Costello turned out to be tight with Irish criminals on the West Side of Manhattan, particularly Owney "The Killer" Madden and William "Enormous Bill" Dwyer. With the Irish, Costello turned into a major part of a rum-running operation called "The Combine. Obviously, Costello imparted all his benefits to Luciano, Lansky, and Siegel.