New York City's current potter's field, where the unknown and unclaimed dead of the city are buried, is Hart Island. It is a small island at the western end of Long Island Sound, just east of the Bronx. In the 1600s, the island was purchased from Native Americans by Thomas Pell. In the late 1800s, the City of New York purchased it from the Hunter family. In the past, Hart Island has hosted a Civil War internment camp, a missile base, a yellow fever quarantine, and a boys' reformatory. Abandoned hospitals, vacant prison buildings, and grave markers now dot the island.