In 1924, the SS Watertown, an oil tanker, sailed from California to New Orleans via the Panama canal. During their voyage, two crew members were cleaning a cargo tank when a freak accident caused them to die after being overcome by gas fumes. As was the custome at that time, both men were buried at sea.
The next day, and for several days after, the faces of the two dead men were seen in the waves on the port side of the ship. The heads appeared about ten feet apart and 40 feet from the ship. The ships captain reported the strange phenomena to his employer who told him to attempt to get the faces on film. Which he did. The photo and negative were looked at by an investigative company who determined neither had been tampered with.