From left to right: Andrew DiSimone, Michael DeSantis, Anthony Villani, Unknown with hat (possibly Anthony Baratta), Unknown with mask (possibly George Zappola), Unkown seated down.
From the gangland article:
Andrew DiSimone, Michael (Big Mike) DeSantis, Villani, Anthony (Bowat) Baratta, George (Georgie Neck) Zappola, and Frank (Skinny Frank) Salerno.