Wasn't a Calabrian pal of Capone's named Frankie Yale(Uale) the head of Unione Siciliana?
Uale def was a top guy also a notorious (so called) Black hander.
Francesco (Frankie Yale) Ioele, was the acknowledged early "Camorra" boss of the Napolitani/Calabrese factions headquartered in the "Downtown Brooklyn" section of Brooklyn, New York. At that time, HE was the power!
In fact, many future NYC Cosa Nostra powers you've all read about, such as Luciano/Genovese capos Antonio (Little Augie Pisano) Carfano and Generoso (Toddo Dell) Del Duca, soldier Giuseppe (Joe Tobin) Scarpinito, and so many others, too numerous to name....all "cut their teeth" under Frankie Yale's tutelage.