The Cuckoo gang were big time bank robbers and stickup men(dont know about bootleging).The Cuckoo and the Egans Rats gangs produced some heavy hitters during the 20's in St.Louis.I think during this period some of these gangs were connected to the Capone mob through Claude Maddox(i think he was an ex member of the St.Louis gangs) and the Circus gang from Chicago's North Side.Capone sometimes used these gangs for his dirty work....but most of the members of both ST.Louis gangs got killed or convicted by the early 30's