Harbor patrolman who, with Fred Crisman, claimed a 1947 sighting of donut-shaped craft and falling debris over Maury Island, Washington. The case became foundational for early UFO investigators but is widely considered an early hoax.
Harold Dahl was a maritime patrolman involved in the controversial 1947 Maury Island incident, which occurred shortly before Kenneth Arnold's famous sighting. Dahl claimed to have seen six doughnut-shaped UAPs drop hot metallic slag onto his boat, killing his dog and injuring his son. Dahl's key contribution is his association with the first reported 'Men in Black' encounter, asserting he was threatened by a mysterious man to remain silent about the event. The case remains heavily debated, with the military labeling it a hoax, but it firmly established the paradigm of physical UFO debris and government intimidation. His story remains a foundational, albeit disputed, element of early ufology.