For more than a century, it was almost impossible to find out much about people buried on Hart Island. But in 2008, that all changed — thanks in large part to a woman named Melinda Hunt.

Melinda is a visual artist who has spent more than 30 years documenting America’s largest public cemetery, and advocating for families with loved ones buried there. She is the founder of The Hart Island Project, a searchable database of more than 75,000 burial records.

This week, producer Alissa Escarce sits down with Melinda to discuss the history of Hart Island and how it’s changed over the last few decades. This is episode four of our series The Unmarked Graveyard. New episodes published each week.