http://mafiamembershipcharts.blogspot.com/2015/05/lennerts-rockford-list.html

Lazzio, Charles –
*member
*born April 10, 1907, in Convent, Louisiana
*stepson of Mike DiGiovanni
*related to Giovingo brothers (Lazzio’s grandmother was mother of Giovingos)
*arrested in April 1935, being accused of obtaining stolen goods from a robbery gang, which included Charles Vince
*indicted in August 1938 on grand larcey charges, relating to a false hijacking of a load of cigarettes in December 1937
*unidentified sources in 1946/1947 stated the gambling scene in Rockford was controlled by a gambling syndicate consisting of Charles Dursch, Tony Musso, Alf J. Mallot, Jasper Calo, Charles Lazio, John Calderotta alias Blackie, Thomas Pendergast, Francis B. Croon, Rubin A. Croon, William B. Morris, Sam Lazio and Frank Maragi.
*during 1960s partner in North Towne Lounge with Joe Zammuto and Charles Vince
*died April 27, 1987, in Rockford

Lazio, Joe –
*born January 1, 1914
*stepson of Mike DiGiovanni
*purchased gambling stamp with August Musso in 1954
*died March 1981

Lazio, Sam -
*unidentified sources in 1946/1947 stated the gambling scene in Rockford was controlled by a gambling syndicate consisting of Charles Dursch, Tony Musso, Alf J. Mallot, Jasper Calo, Charles Lazio, John Calderotta alias Blackie, Thomas Pendergast, Francis B. Croon, Rubin A. Croon, William B. Morris, Sam Lazio and Frank Maragi.
*operator of Spotty’s Tavern during 1940s with Frank Maragi. The tavern received wire service from Dursch

There are some more names, which could show up in chip research, but the whole article has some interesting reading about the area.