their mentors, continuing to commit illegal activities throughout the 1850s before eventually joining the later street gangs following the American Civil War in 1865. Edward Coleman In popular culture Gangs of New York (2002 film) St. Jimmy (2004 Song by Greenday) References External links Beware the Forty Thieves, very first gang of New York Former gangs in New York City Irish-American gangs Irish-American culture in New York City Ali Baba