I believe the Smaldones of Denver were connected to the Dragnas in LA. There's a book about them I've been meaning to read. I believe Milwaukee was always under Chicago even though they technically had their own boss. As far as today I have to guess Denver has been defunct for decades, but I'm sure Milwaukee has at least a small Chicago presence.

"...the successful annihilation of organized crime's subculture in America would rock the 'legitimate' world's foundation, which would ultimately force fundamental social changes and redistributions of wealth and power in this country. Meyer Lansky's dream was to bond the two worlds together so that one could not survive without the other." - Dan E. Moldea