New York Societies
For genealogical and historical societies which have records and services to help you with your research see the "Archives and Libraries" and "Periodicals" sections of this outline. Many counties also have local historical and genealogical societies. You can find local society addresses by using directories cited in the "United States Societies" article.
New York Historical Society: https://www.nyhistory.org/web/
New York Historican and Genealogical Societies: http://www.daddezio.com/society/hill/SH-NY-NDX.html