Reinhart wasn't a gangster. He was an optician, who inherited his fathers business then lost it. As of now he was being supported by his mother. Though not a gangster he sure loved hanging out with them. O'Banion, Moran, the Gusenbergs. The more the merrier.
Al went by the name James Clark. Another North Sider, Al had a record dating back to 1905. He was also one of the gunmen with the Gusenberg brothers when they killed Pasquale Lolordo back on January 8, 1929.
Adam was a paroled robbery who acted as the Northside gangs business manager. In addition to running Bugs Moran's dog track he also held the lease on the gang's garage at 2122 North Clark Street.
The Gusenberg brothers were two of the Chicago Northside gangs top guns. Pete was the elder and had a record dating back to 1902. Frank followed in his big brothers foot steps with an arrest in 1909. More recently they had nearly killed Capone shooter "Machine Gun" Jack McGurn in a phone booth and succeeded in killing Capone friend Pasqualino Lolordo ---a house call none-the-less---, on January 8, 1929.
John was a failed robber and safe cracker who worked as a truck mechanic for Chicago's Northside gang. In addition to maintaining the gangs fleet of trucks for $50 a week, John would sometimes ride along on deliveries.