William Poole also known as Bill the Butcher, was a member of the New York City

New York City

New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...

 gang the Bowery Boys

Bowery Boys

The Bowery Boys were a nativist, anti-Catholic, and anti-Irish gang based north of the Five Points district of New York City in the mid-19th century. They were primarily stationed in the Bowery section of New York, which was, at the time, extended north of the Five Points...

, a bare-knuckle boxer

Bare-knuckle boxing

Bare-knuckle boxing is the original form of boxing, closely related to ancient combat sports...

, and a leader of the Know Nothing

Know Nothing

The Know Nothing was a movement by the nativist American political faction of the 1840s and 1850s. It was empowered by popular fears that the country was being overwhelmed by German and Irish Catholic immigrants, who were often regarded as hostile to Anglo-Saxon Protestant values and controlled by...

 political movement.
Poole was born in Sussex County, New Jersey

Sussex County, New Jersey

The County of Sussex is the northernmost county in the State of New Jersey. It is part of the New York City Metropolitan Area. As of the 2010 Federal decennial census, 149,265 persons resided in Sussex County...

 to parents of English descent

English American

English Americans are citizens or residents of the United States whose ancestry originates wholly or partly in England....

. In 1832, his family moved to New York City to open a butcher

Butcher

A butcher is a person who may slaughter animals, dress their flesh, sell their meat or any combination of these three tasks. They may prepare standard cuts of meat, poultry, fish and shellfish for sale in retail or wholesale food establishments...

 shop in Washington Market, Manhattan

Manhattan

Manhattan is the oldest and the most densely populated of the five boroughs of New York City. Located primarily on the island of Manhattan at the mouth of the Hudson River, the boundaries of the borough are identical to those of New York County, an original county of the state of New York...

. William Poole trained in his father's trade and eventually took over the family store. In the 1840s, he worked with the Howard (Red Rover) Volunteer Fire Engine Company #34, Hudson & Christopher Streets and started the Washington Street gang.
The New York Daily Times reported the following on October 23, 1851:

Poole's archenemy, John Morrissey

John Morrissey

John Morrissey , also known as Old Smoke, was an Irish bare-knuckle boxer and a gang member in New York in the 1850s and later became a Democratic State Senator and U.S. Congressman from New York, backed by Tammany Hall...

, was an Irish

Irish people

The Irish people are an ethnic group who originate in Ireland, an island in northwestern Europe. Ireland has been populated for around 9,000 years , with the Irish people's earliest ancestors recorded having legends of being descended from groups such as the Nemedians, Fomorians, Fir Bolg, Tuatha...

 immigrant and enforcer for Tammany Hall

Tammany Hall

Tammany Hall, also known as the Society of St. Tammany, the Sons of St. Tammany, or the Columbian Order, was a New York political organization founded in 1786 and incorporated on May 12, 1789 as the Tammany Society...

.