Here’s some notes on that:

• Daniel Stern had an early life, and Joe Pesci was famous for playing mafia characters. A criminal organization of Early Lifed Mafioso and 13s (per later note)?
• The house was located at 671 Lincoln Street in Chicago.
• Harry’s hand was branded with an M, which aside from being the Masonic apron and whatnot else, is the 13th letter
• The marked all their heists with a calling card (13)

Probably a lot more, just a quick scan.

Side note: Daniel Stern’s brother is named David Stern and his son is a California state senator.