George W. (George Washington) Matsell

Born in 1811, George Washington Matsell became a prominent figure in New York City law enforcement. He is especially remembered for serving as chief of police in the mid-19th century, during a turbulent period in the city's growth, and for writing Vocabulum; or The Rogue's Lexicon, a compact dictionary of criminal slang.

That book helped preserve the language of thieves, swindlers, and street characters at a time when such speech was rarely documented. For modern readers, Matsell's writing is valuable not only as a curiosity, but also as a snapshot of everyday urban life and the world of policing in 19th-century America.

He died in 1877. While detailed personal biographies are limited in the sources readily available, his reputation endures through his unusual lexicon and his place in the early history of New York policing.