Nearly 130 years ago, the 191-foot schooner barge Ironton collided with the freighter Ohio in a section of Lake Huron known as Shipwreck Alley. The accident sank both ships and killed five of the Ironton’s seven crew. Now, she rises like a ghost from the past, as researchers have found Ironton pristinely intact on the seafloor of the Thunder Bay National Marine Sanctuary.