Daniel Richard Poirier, 26, was last seen on May 29, 1976, after going on a boating trip out of Marshfield, Massachusetts, with his girlfriend Elaine Kwiatkowski and another couple, Jana Coonan and David Hodgdon. The outing is believed to have ended in a fatal accident on the water; Coonan and Hodgdon’s bodies were recovered, but Daniel and Elaine have never been conclusively found.

In October 1976 a body was discovered that was at first thought to be Daniel’s, but inconsistencies in the clothing and the condition of a wallet cast doubt on that identification. Because of that ambiguity and the absence of any confirmed trace of Elaine, Daniel remains officially listed as missing and the families continue to have no definitive closure.

Are there anyone who was on the water that day or who has information about searches later that could help clarify what happened to Daniel and Elaine?