Abstract: In 1890, New York City officials questioned the accuracy of the City's population count in the United States federal census. As a result, the New York Police Department was tasked with conducting an independent census which was done between September 29 and October 14, 1890. This collection consists of the original police census volumes that record the name, age, gender, and address of residents of the city. Due to the destruction of nearly all of the 1890 federal census, the police census is...