In December of 1924, James Courtney and Michael Meehan were killed by gas fumes aboard the ship S.S. Watertown. The two men, who were part of the ship's crew, had been overcome by the fumes while they were cleaning a cargo tank on board the vessel.
The S.S. Watertown was in the middle of a journey between New York City and the Panama Canal at the time of the two deaths and the men were given a burial at sea off the Mexican coast.
However, the next day at dusk, and for several days thereafter, the crew claimed to see the faces of the two dead men in the waves in the water near the ship. When the ship came to port in New Orleans, the ship's Captain, Keith Tracy bought a camera, hoping to capture the apparitions.
After setting off from New Orleans the faces appeared again, and Tracy took six photos of the ghosts before locking the camera and its film in a safe till the voyage's end.
It was these events that spawned one of the most famous ghost photos ever, and one of the most popular pictures proving that there was indeed life after death.
However, new research conducted in 2010 may make you change your mind about one of the most famous ghostly pics of all time...