UAP Files

The Maury Island Incident: What This 1947 CIC Report Reveals

By DeClassX June 30, 2026 1,048 words
A confidential 1947 Army Counter Intelligence Corps report documents the investigation into the Maury Island UFO incident — including sample collection, a fatal plane crash, and an anonymous tip that blew investigators' cover.

# The Maury Island Incident: What This 1947 CIC Report Reveals

By DeClassX

Six weeks after Kenneth Arnold's now-famous sighting of nine disc-shaped objects over Mount Rainier — the event that gave the world the term "flying saucer" — two U.S. Army Air Force officers were dead, a B-25 bomber had crashed outside Tacoma, Washington, and a Counter Intelligence Corps report stamped CONFIDENTIAL was quietly making its way through military channels. That report, designated CI-R1, offers one of the most striking primary source windows into the early government response to the UFO wave of 1947 and the strange, still-contested case known as the Maury Island Incident.

The document covers the events of July 31, 1947, a single afternoon that managed to compress an anonymous tip, a covert military investigation, a hotel room interview, a box of unidentified material samples, and the prelude to a fatal aircraft accident into just a few hours. Reading it carefully, what emerges is less a story of little green men and more a portrait of institutional anxiety — military officers operating in civilian clothes, FBI background checks run on journalists and publishers, and field agents acutely aware that the press was already one step ahead of them.

The incident officially began, according to the report, when Kenneth Arnold — identified here not as the famous pilot who coined "flying saucers" but in his professional capacity as Aviation Editor of the Idaho Daily Statesman — telephoned Lieutenant Frank Brown at the CIC Sub-Detachment at Fourth Air Force Headquarters. Arnold explained that he and a Captain Smith had traveled to Tacoma to investigate a reported "flying disc explosion" aboard a surface vessel on June 21, 1947. This investigation, the report notes, had been requested and financed by one R. A. Palmer of the Venture Press in Evanston, Illinois.

That name — Ray Palmer — will be familiar to anyone who has traced the early history of UFO culture in America. Palmer was a science fiction editor and publisher who had already been promoting sensational stories about mysterious aerial phenomena and inner-earth civilizations. His involvement immediately raised flags for military intelligence. An agent's note embedded in the report states that upon receiving a letter signed by Dave Johnson, editor of the Idaho Daily Statesman, Fourth Air Force personnel contacted the San Francisco FBI office, which in turn checked Chicago records. The result: the Chicago FBI indices, the Chicago Police, and the Credit Bureau had no record on either R. A. Palmer or the Venture Press. For a document rooted in 1947, that negative finding is striking — it suggests either that Palmer operated below the official radar or that his operation was simply too small to have accumulated a record. Either way, the military was clearly running background checks on the civilians circling this story.

The heart of the CI-R1 report concerns what happened when Lieutenant Brown and Captain Davidson flew to McChord Field that same afternoon. The document notes, almost casually, that the two officers changed out of their uniforms into civilian clothes while still aboard the aircraft. When questioned by base operations staff about why they needed transport to Tacoma, they said they were going to give a speech. This detail is confirmed in the report as compliant with a July 7, 1947 directive from Air Defense Command regarding the investigation of flying discs — a directive that apparently instructed officers to maintain cover when pursuing these investigations. The military was already treating UFO inquiries as something requiring operational security.

Their cover, however, had already been blown before they arrived. According to Major George Sander, the Public Information Officer at McChord Field, the Tacoma Times had received an anonymous telephone call informing them that Arnold and Smith were at the Winthrop Hotel to investigate the flying disc case. The Times confirmed this independently, to the considerable surprise of Arnold and Smith. Who made that call remains unknown. The document does not speculate, but the anonymous tip is one of the most enduring mysteries attached to the Maury Island case — some researchers have suggested it was made by one of the key witnesses themselves, Harold Dahl or Fred Crisman, as a way of generating publicity.

What followed was an interview in a hotel room at the Winthrop, conducted by Brown and Davidson in the presence of Arnold and Smith. The witnesses, Dahl and Crisman, described what Dahl claimed to have seen on June 21: while traveling south of Maury Island in Crisman's boat, five flying discs descended from cloud cover, circled slowly over the bay, and dropped to an estimated altitude of 500 feet. The discs were described as round — though the document breaks off before the physical description is complete.

Critically, the report establishes that Brown obtained physical samples from Dahl and Crisman during that interview — fragments of an unidentified substance that Dahl claimed had been ejected from one of the discs and had struck his boat, injuring his son and killing his dog. Arnold, according to his later account to Major Sander, took samples from the same box. Those samples were photographed and appear as Inclosures 3 through 7 in the original document package.

Then comes the detail that transforms this report from an unusual bureaucratic curiosity into something genuinely sobering. The crew chief of the B-25 that Brown and Davidson flew back to Hamilton Field, a Technical Sergeant Matthews, confirmed to the reporting officer that he loaded a heavy cardboard carton into the rear compartment of the aircraft before departure. He did not look inside it. He heard no comments from Brown or Davidson about its contents. That aircraft crashed shortly after takeoff on August 1, 1947. Brown and Davidson were killed. The samples — if they were on board — were destroyed or disappeared in the wreckage.

The CI-R1 report does not draw conclusions. It documents. But what it documents is enough to make anyone pause: two intelligence officers dead, physical evidence gone, an anonymous source who was never identified, and a publisher with no paper trail financing a UFO investigation at the very moment the U.S. military was quietly trying to understand what its own pilots had been seeing in American skies.

The open question that lingers is simple and still unanswered: what was in that box?

Maury Island incident1947 UFO reportsdeclassified UFO documentsCIC investigationKenneth Arnoldflying discAARO disclosures
Primary Source
This article is grounded in a declassified document from the X-Vault UAP Files Archive. Read the original document →
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