Hoover's 1947 Reply: The FBI Had No Flying Saucer Files
# Hoover's 1947 Reply: The FBI Had No Flying Saucer Files
By DeClassX
On September 2, 1947, one of the most powerful law enforcement officials in American history sat down — or more precisely, had a subordinate sit down — to answer a letter from a woman in Florence, Alabama. Mrs. W. T. Williams had written to FBI Director J. Edgar Hoover two weeks earlier, on August 18, asking about flying saucers. His reply was brief, polite, and almost perfectly calibrated to say nothing at all: no U.S. government agency, he wrote, had offered any record on the location of flying saucers. He regretted he could not be of further assistance.
The letter is only a few sentences long. But those sentences land differently when you understand exactly when they were written and what was happening in the country at the time.
The summer of 1947 was the summer America discovered flying saucers. On June 24, a civilian pilot named Kenneth Arnold reported seeing nine crescent-shaped objects moving at extraordinary speed near Mount Rainier in Washington State. The press coined the term "flying saucers" based on Arnold's description of their motion, and within days the phrase had lodged itself permanently in the American imagination. Hundreds of sighting reports flooded newspapers, military offices, and government agencies throughout July and August. The public was riveted, and officials — publicly, at least — were scrambling to catch up.
Mrs. Williams was not alone in reaching out to authorities. Ordinary Americans were writing to their government in earnest, asking what these objects were, whether they posed a threat, and what was being done about them. Hoover's letter to her, now preserved in the FBI's declassified files, represents a snapshot of that moment: a private citizen demanding answers and an institution carefully deflecting.
The language Hoover uses — or rather, the language drafted on his behalf and signed in his name — is worth examining closely. He states that "no record has been offered by any U.S. Government Agency for the location of flying saucers." The phrasing is precise in a way that feels deliberate. He does not say the government has investigated and found nothing. He does not say flying saucers do not exist. He says no record has been offered — a passive construction that technically leaves open the possibility that records exist but simply haven't been shared. Whether that careful wording reflects legal caution, bureaucratic habit, or something more intentional is impossible to say from the document alone. But it is the kind of language that intelligence historians have learned to read slowly.
The document itself carries the marks of an active bureaucracy. There are handwritten annotations in both red and blue ink: a blue circle drawn around the phrase "flying saucers," red lines beneath Mrs. Williams's name, case file numbers stamped and written in the margins (62-83894 being the most prominent), and a cluster of initials and dates that suggest the letter passed through multiple hands before and after it was sent. A handwritten date of September 17, 1947 — fifteen days after the letter was mailed — appears in red, alongside checkmarks and initials, suggesting someone reviewed it again after the fact. Why a routine reply to a citizen inquiry warranted that level of internal tracking is not explained by the document.
The FBI mail stamp confirms the letter was dispatched the same day it was dated, September 2, 1947, in the afternoon. The signatory codes "FEC:blf" indicate the letter was dictated by one official and typed by another — standard procedure for Hoover-era correspondence, where the Director's name was routinely affixed to replies he may never have personally reviewed. The "blf" initials appear both in the typist notation and as an actual signature at the bottom, an unusual flourish that may simply reflect office procedure of the period.
What makes this document particularly interesting to researchers is its timing relative to behind-the-scenes government activity. While Hoover's letter to Mrs. Williams claimed ignorance, the U.S. Army Air Forces had already launched a preliminary investigation into flying saucer reports by the summer of 1947. That inquiry would eventually be formalized as Project Sign in January 1948, followed by Project Grudge and later the long-running Project Blue Book. Internal military documents from this period show that officials were taking the sightings seriously enough to collect, classify, and analyze reports — even as public-facing communications urged calm and implied there was little of substance to investigate.
The FBI itself had a complicated relationship with the flying saucer question during this period. Other declassified documents from 1947 show Hoover expressing frustration that the military was not sharing its investigation findings with the Bureau, suggesting the FBI did want access to saucer-related intelligence, even as letters like this one went out to the public claiming there was nothing to share. In a now-famous marginal note on a separate 1947 document, Hoover complained that the Army had kept the FBI from examining recovered saucer materials — a comment whose full meaning has been debated ever since.
None of that context appears in the letter to Mrs. Williams, of course. She received a courteous, three-sentence reply that told her nothing and closed the door politely.
The document raises a question that remains unresolved: what did Mrs. Williams make of Hoover's answer? We have her letter's date but not its contents. We know she wrote from Florence, Alabama, in August 1947, curious enough about flying saucers to contact the Director of the FBI directly. Whether she was satisfied by his reply, skeptical of it, or simply moved on, the archive does not say.
What the archive does preserve is Hoover's carefully worded non-answer, filed, annotated, reviewed again two weeks later, and eventually declassified decades after both principals were gone. It is a small document about a very large question — and like so many records from this particular summer, it tells you just enough to make you want to know more.
This article is grounded in a declassified document from the X-Vault UAP Files Archive. Read the original document →