I forgot about the other gangs allied with Masseria, and yes Capone was a group leader under Masseria in Chicago. HK, Ruggiero Boiardo was a group leader during Masseria's time, I think you are thinking of his son Anthony Boiardo who not made at the time, but later on took over his fathers crew.

"I have this Nightmare. I'm on 5th avenue watching the St. Patrick's Day parade and I have a coronary and nine thousand cops march happily over my body." Chief Sidney Green