New York Slavery Records Index – Records of Enslaved Persons and Slave Holders in New York from 1525 through the Civil War (John Jay College)

Dutchess African Heritage Studies: Walter M. Patrice Online Library (Dutchess County Historical Society)

New York Heritage Digital Collections – search for “slave register”

Free newspaper websites:
a.     New York State Historic Newspapers
b.     Old Fulton Postcards
c.     Hudson River Valley Historical Newspapers