This section includes a city-by-city look at the succession of bosses of the major American Mafia crime families over time. Short writeups indicate how organized crime leaders came to and lost their power (and/or their lives). This is not yet a comprehensive list of U.S. crime families. Known underworld organizations in New Jersey, northern California, eastern Missouri, Colorado, Alabama, and Chicago Heights in Illinois, are not yet represented. The occupants of the U.S. boss of bosses position are included, though this technically was not a crime family leadership position.