Duncan was born in West Virginia and raised in Northern California. He has been taking pictures for longer than he can remember. He received his B.A. in photography from Bard College in 2011, studying under Stephen Shore, Larry Fink, and Tim Davis. Since graduating, Duncan has exhibited throughout New York City, and in the upstate area where he lives and works.
Duncan's work focuses on the American landscape, and the aesthetic and culture of its roads. He is drawn to the liminal spaces that they create and the people who pass through them. Though usually about people, his photographs are less often of them. He is more interested in the structures and spaces we create, inhabit, and leave behind.