known as the "Bank Exchange". Street gangs Street gangs in New York were fluid in their membership and name as they merged and found new leaders. The most well-known of these was the Bowery Boys, which Poole formed from his own Washington Street gang and a collection of many other street gangs. Other key gangs incorporated into the Bowery Boys were the American Guards, Atlantic Guards, True Blue Americans, and the Order of the Star-Spangled Guard. These gangs were composed of Nativist White Anglo-Saxon Protestants who were opposed to enfranchisement of the growing number of Irish Catholic refugees from the Great Famine. Street gangs, like the Bowery Boys, "were bound by ethnic ties or nativist belief; the members tended to be deeply patriotic, and a common thread was the belief that the country was pretty well full, so that newcomers were not welcomed." Poole's gang was located near to the Five Points neighborhood, where many recent Irish Catholic immigrants settled. Five Points was located in what is now Chinatown in Lower Manhattan. Waves of Irish- and German-Americans moved into the Five Points as their first stop on the way to the American dream. In response to attacks by Poole and his followers, the Irish created their own street gangs. The Dead Rabbits were an Irish-membership gang and the biggest rival of Poole's Bowery Boys. Much of the hatred between the two gangs was based on racial and religious differences. "For years the Bowery Boys and the Dead Rabbits waged a bitter feud, and a week seldom passed in which they did not come to blows, either along the Bowery, in the Five Points section." Both gangs were primarily brawlers and street fighters, another reason why William Poole was a well-known fighter, and most of their battling was done in open spaces. Poole made many alliances with other street gangs that supported his ideology. Political views William Poole detested the Democratic Party's local political machine, Tammany Hall, because they accepted and included immigrants as members. Tammany Hall-affiliated street gangs also protected Irish Catholics from Poole's Bowery Boys, whom he sent to terrorize immigrants and keep them from registering to vote. Poole and the Bowery Boys were a de facto extension of the Know Nothings, a nativist and militantly anti-Catholic political party. According to the New Orleans True Delta, the purpose of the Know Nothings was "twofold – part religious, part political;