Directories of residents, organizations, and businesses in New York, New York, 1786-1922 (and some undated).
Before the modern phone book, many cities and towns published alphabetical directories of their residents and businesses. These publications contain names and addresses for most adults and businesses in the city and may include references to age, occupation, employer, the name of a deceased spouse, and other information. These directories tended to be published more often than every ten years, so they give a more dynamic picture of a city's population than the decennial US census.
Various titles, publishers, and years, digitized at Footnote.com