Maury Island / Puget Sound, Washington, United States
The Maury Island Incident (1947)
Harold Dahl claimed that on 21 June 1947 six doughnut-shaped craft appeared over his boat near Maury Island and dropped hot debris, injuring his son and killing a dog. Fred Crisman backed parts of the story. Army Air Forces officers investigated and carried debris away; two were killed when their B-
Why This Case Matters
A foundational pre-Arnold flying-saucer story and an important corrective case because genuine military/FBI involvement and a fatal aircraft crash became fused with a claim the investigators themselves regarded as a hoax.
Chronology
- 21 Jun 1947 claimed boat/debris event
- late Jul Kenneth Arnold investigates
- 31 Jul Army intelligence officers Brown and Davidson interview parties and collect material
- 1 Aug their B-25 crashes near Kelso
- Aug FBI investigates Dahl/Crisman
- later Air Force/Ruppelt account labels case a hoax
The Witnesses
Evidence
The following evidence types are documented for this case:
Conventional explanations: Hoax/publicity scheme is strongly supported by the FBI and later Air Force assessment, inconsistent statements and mundane debris. The B-25 crash is documented but does not authenticate the UFO story and should not be framed as evidence of suppression.
What Remains Unresolved
- Complete FBI file and Army Air Forces interview notes
- provenance of any surviving debris samples
- exact sequence of Dahl's public/hoax statements
- crash-investigation findings separated from UFO investigation.
Key Takeaways
- Treat Maury Island as a historically consequential hoax/disinformation case, not as a physical-crash retrieval case. Its strength is the documentary record of investigation and myth formation.
Sources
Primary and secondary sources for this case file: