Wall Street was built on the site of a defensive wall for the Dutch colony of New Amsterdam. Still, even if Jesse Jackson was speaking figuratively, he's an idiot. What made America an industrial power and developed its industry was ingenuity, not slavery.
Regards, Ivan
According to a map in "The Historical Atlas of New York City," the "Negroes' Burial Ground" in 18th century NYC was just north of what was then the city common (what is now City Hall Park). That's several blocks north of Wall Street, and outside the financial district.
Don't anybody tell Jesse, but, according to the map of 18th century NYC in Burrows & Wallace, Gotham, the slave market in 18th century NYC was at the far eastern end of Wall Street, just off the East River docks.