New York and Slavery
- New-York Historical Society: Slavery in New York. Online Exhibit.
- New-York Historical Society: New York Divided: Slavery and the Civil War. Online Exhibit.
- Columbia University: Sidney Howard Gay’s Record of Fugitives. Scan, Transcript, Information on individual fugitives.
- Black Loyalists Digital Collection: Carleton Papers – Book of Negroes 1783.
- The Bowery Boys: New York City History Podcast: New York City and the Underground Railroad: Escaping to freedom through a hostile city.
- Jonathan Daniel Wells (2020): The Kidnapping Club: Wall Street, Slavery, and Resistance on the Eve of the Civil War
- Don Papson & Tom Calarco (2015): Secret Lives of the Underground Railroad in New York City: Sydney Howard Gay, Louis Napoleon and the Record of Fugitives
- Eric Foner (2015): Gateway to Freedom: The Hidden History of the Underground Railroad
- Ira Berlin & Leslie M. Harris (2005): Slavery in New York
- Leslie M. Harris (2004): In the Shadow of Slavery: African Americans in New York City, 1626-1863
- Edgar J. McManus (2001): A History of Negro Slavery in New York
- Alan J. Singer (2008): New York and Slavery: Time to Teach the Truth
- Graham Russel Gao Hodges (2010): David Ruggles: A Radical Black Abolitionist and the Underground Railroad in New York City