Blackwell House is a historic house on Roosevelt Island in New York City.

He was the great-grandson of Robert Blackwell, who in 1686 took ownership of what was then known as Manning's Island and subsequently became the island's new namesake.

[2] The house was added to the National Register of Historic Places in 1972.

This article about a historic property or district in Manhattan, New York City, that is listed on the National Register of Historic Places, is a stub.

You can help Wikipedia by expanding it.This article about a building or structure in Manhattan is a stub.