James Howard Boyle, 26, disappeared on February 5, 1983, while visiting the Marin Headlands in Marin County, California. He was with his girlfriend, Stacey Lee Lynch, and authorities believe the two may have accidentally fallen from the cliffs into the Pacific Ocean. The shoreline there is steep and hazardous, and both were never recovered.

Boyle was 5 feet 9 inches, 140 pounds, with brown hair and hazel eyes; he had prior injuries including broken pinkies and a crushed left foot. Searches and investigations have continued since 1983 but have turned up no trace of Boyle or Lynch, and the case remains classified as an endangered missing person case.

Anyone who was in the Marin Headlands on February 5, 1983, or who has information about Boyle or Lynch is asked to come forward.