Frank Sortino aka Ferraro was one time underboss for Sam Giancana, or from 1956/57 until his death in 1964, when he got replaced by Teets Battaglia.

Ferraro lurked around Chinatown and the Near South Side and was very close with the Alex family, especially Gus and also with Jimmy Catuara. In fact both Ferraro and Alex trusted each other so much that they operated in the same manner and the members who answered to Ferraro, also answered to Alex.

Ferraro probably started in the Phil D'Andrea/Bruno Roti Sr crew that controlled the First Ward and the so-called "South Side Mafia", since after Roti's death Ferraro inherited the 1st Ward and the rest of those same areas.

Ferraro was also one of the Outfits guys in LA from the early or mid 1940s until the early 50s, although I still dont have any info regarding his purpose and why he went over there. He was also present at the 1956 meeting with Ricca, Accardo and Humphreys on which Giancana was elected the new boss of the organization with Ferraro as his number two guy.