John Sparks, 47, was working aboard the fishing vessel Shadrach in Alaskan waters when he reportedly fell overboard near the end of Whale Pass in the Kodiak area on August 13, 1986. He was described as a Caucasian male, 5 feet 4 inches, about 140 pounds, with brown hair and brown eyes and a scar near his left eye. At the time he went into the water he was wearing a grey parka with a hood, blue jeans, and brown rubber-type boots. Nicknames recorded for him include John Delmar or John Delmer.

The Alaska State Troopers logged this as a man overboard incident, and despite searches following his disappearance, the waters did not yield any sign of him. He remains listed as a missing person with the presumption he did not survive the fall into the ocean. If anyone knew John Sparks, worked with him, or has information about that voyage of the F/V Shadrach, please share what is known.