1. New York City Library. OldNYC

Map with old 1850-1950 pictures of the New York City

2. Brooklyn Library Historical Newspapers

Collection of the Brooklyn Eagle Articles

3. New York City Library Historical Maps

Digital collection of the old maps in New York Public Library

4. VINEGAR HILL HISTORIC DISTRICT DESIGNATION REPORT 

Report about historical District of the Vinegar Hill.

5. http://catalog.brooklynpubliclibrary.org/

Digital collection of the old pictures in the Brooklyn Public Library