Asked Questions Frequently Asked Questions. Data Sources & ilability Where does source its data, how often is it updated, Franklinville and Lake-Crystal where is it available? Welcome to City of New York The official website of the City of New York. Find information about important alerts,services, news, programs, events, government employment, the office of the. NewYork Historical Society Research > Generous support for the Patricia D. Klingenstein Library and its programming is provided by Ruth and Sid Lapidus, the New York State Education Department, Library.