Built in 1909, New London Ledge Lighthouse is famed for the ghost of former keeper Ernie, who reportedly went mad after his wife left him and later died on duty. Crews and visitors describe doors slamming, radios switching on, objects moving, and an apparition of a man in a long coat seen near the stairs and gallery. One chilling account involves a keeper being locked inside the lighthouse overnight by unseen forces. With decades of modern reports and televised investigations, the Ledge remains one of America’s most active lighthouse hauntings.