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FBI-62HQ-83894/summary-aerial-phenomena-section-5-1950  /  1950-07-19  /  FBI

Section 5 SAC Albuquerque Transmittal of OSI 'Summary of Aerial Phenomena in New Mexico, December 1948–May 25, 1950' (July 19, 1950), the Missing-Link Document Cited in the Belmont Master Memo

"** Stamped 162-83894-V, received July 21, 1950. md)). " Page 164 is that referenced document — or, more precisely, the FBI Albuquerque transmittal of it.

CLASSIFICATION DECLASSIFIED  /  CONFIDENCE MEDIUM  /  1949-50, the disinformation year

Appendix I to Project Blue Book Status Report No. 8 (NARA 595542): hand-drawn chart of UFO report frequency, June through September 1952. The institutional visualization analogous to the FBI 62-HQ-83894 Section 5 summary aerial phenomena tabulation of July 19, 1950.
Frequency of UFO reports / Blue Book Status Report 8 / NARA

Summary

This source page documents a single FBI Office Memorandum found at Section 5 page 164: SAC Albuquerque to Director, FBI, dated July 19, 1950, subject “SUMMARY OF AERIAL PHENOMENA IN NEW MEXICO.” Stamped 162-83894-V, received July 21, 1950. It is not itself a summary; it is a one-paragraph FBI transmittal cover letter forwarding an OSI-prepared summary of New Mexico aerial-phenomena observations covering December 1948 to May 25, 1950, “prepared by the Inspector General’s Office of the 17th District of Special Investigations, Kirtland Air Force Base, New Mexico.”

This document is the missing-link bridging memo explicitly referenced in the Belmont→Ladd master memo of August 23, 1950 (pass 11, belmont-twinkle-master-memo-osi-log-1949-1950). Pass 11 noted that “The OSI July 19, 1950 summary as the bridging document between La Paz’s May 23 Seventh Report and Belmont’s August 23 master memo — referenced but not in the OCR’d portions read.” Page 164 is that referenced document — or, more precisely, the FBI Albuquerque transmittal of it.

The substantive content (the actual OSI summary of observations) is not filed in 62-HQ-83894. Two annotations make this explicit:

Encls. [Handwritten arrow pointing to “filed with original”]

[Handwritten in right margin: ORIGINAL COPY FILED IN 62-85557-217]

So the OSI summary itself lives in FBI file 62-85557-217, a different Bureau case file. The 62-HQ-83894 Flying-Discs file retains only the Albuquerque cover letter for completeness. This means the summary’s underlying observations remain primary-source-inaccessible from the PURSUE release-01 documents reviewed in passes 1–18, even though Belmont quotes its scope and conclusions in his master memo.

The temporal sequence locks tightly: La Paz’s Seventh Report submitted to OSI on May 23, 1950 (pass 10). OSI 17th District Kirtland prepares its summary covering through May 25, 1950. SAC Albuquerque transmits it to FBI HQ July 19, 1950. Belmont→Ladd master memo synthesizing the OSI position issues August 23, 1950 (pass 11). Page 164 is therefore the documentary hinge in a four-stage 1950 escalation chain.

What the Section 5 Page 164 Memo Documents

The transmittal letter itself (Section 5 page 164)

A Standard Form No. 64 Office Memorandum, FBI serial 162-83894-V, dated 7/19/50, signed off as “pw:ush.” Routing: SAC, Albuquerque to Director, FBI. Subject line: “SUMMARY OF AERIAL PHENOMENA IN NEW MEXICO INFORMATION CONCERNING” with handwritten “Flying Discs” annotation. Confidential stamp present and crossed out (declassified 5/22/85 under E.O. 12356, declassify-on-OADR).

The full single-paragraph body:

“There is being transmitted herewith a Summary of Observations of Serial Phenomena in New Mexico from December 1948 to May 25, 1950. This recapitulation of data summarizes previous individual sights that have been reported in this area. The summary was prepared by the Inspector General’s Office of the 17th District of Special Investigations, Kirtland Air Force Base, New Mexico.”

Followed by a one-line authority note:

“The above information is being submitted for the completion of the Bureau’s files.”

A handwritten “S-1 = Air Force” annotation in the margin marks the originating service.

What the transmittal page 164 establishes

  1. Date-bracket of the underlying OSI summary: December 1948 to May 25, 1950 — exactly seventeen months, ending two days after La Paz’s Seventh Report submission of May 23, 1950 (la-paz-seventh-report-cabell-directive-twinkle).
  2. Authoring office: 17th District OSI, Kirtland AFB, New Mexico — the same OSI office whose cumulative sighting log is excerpted in Section 6 (osi-cumulative-sighting-log-full-read-1948-1950).
  3. Routing: Albuquerque-to-HQ, not USAF-to-FBI directly. The Bureau’s New Mexico field office served as intake for OSI summary product.
  4. Cross-file location: original in 62-85557-217, not in the Flying Discs file 62-83894. A new lead for any future researcher: the substantive document content is filed in a different FBI case-file altogether.
  5. Bureau jurisdiction posture: “for the completion of the Bureau’s files” — a passive, archival framing. Albuquerque does not request action, does not flag investigative significance, does not characterize the contents.

Adjacent context (pages 161–170)

The cluster around page 164 is operational-FBI miscellany, not topic-aligned:

  • Page 161: Upside-down OCR of a 1947 Kenneth Arnold-style retrospective flying-saucer sighting report on University of California letterhead.
  • Page 162: Hoover→DeWayne B. Johnson UCLA boilerplate refer-to-DoD reply, June 8, 1950.
  • Page 163: SAC San Francisco interview of Lewis A. Ward (Yuba City, CA) — informant assessed by SA Prelsnik as “abnormal mentally.”
  • Page 165: Major Cox 17th District OSI Kirtland report on June 29, 1950 Phoenix balloon incident — Lt. John D. Fink F-86 visual identification at 47,000 ft.
  • Pages 166–168: Douglas Harrison cigar-shaped object Washington DC sighting (June 25 and June 29, 1950) and Hoover’s July 19, 1950 instruction to SAC Washington Field reminding the office to forward such reports to OSI Inspector General USAF “promptly.”
  • Page 169: Tage Stensig United Air Lines meteorologist Downers Grove sighting July 4, 1950, 700–800 mph estimate.
  • Page 170: June 30, 1950 teletype from Phoenix to Director — multi-radar / B-29 from 509th Bomb Group Roswell tracking object, observer Herman Munroe OSI Williams AFB.

The cluster’s unifying thread is the late-June through mid-July 1950 spike of FBI-routed flying-disc reports, exactly the period during which OSI was preparing the summary that page 164 transmits. Page 165 is independent corroboration: the same 17th District OSI Kirtland office that authored the summary was actively producing case reports (the Phoenix balloon ID) in early July 1950, eight days before the summary transmittal.

Page 164 is not a duplicate of the Belmont master memo

Subject lines differ in framing:

  • Belmont 8/23/50 (pass 11): “SUMMARY OF AERIAL PHENOMENA IN NEW MEXICO — MISCELLANEOUS — INFORMATION CONCERNING” (FBI internal synthesis memo, four pages, three-type taxonomy, 150-observation total, contractor framing).
  • Page 164 7/19/50: “SUMMARY OF AERIAL PHENOMENA IN NEW MEXICO INFORMATION CONCERNING [Flying Discs]” (single-paragraph cover letter transmitting an external OSI document).

They are different documents at different stages of the same 1950 New Mexico information-flow. Page 164 is the input (OSI product entering the Bureau via Albuquerque); the Belmont memo is the output (Bureau headquarters synthesis a month later, drawing on that input plus subsequent Project Twinkle developments).

Why This Matters

  1. Confirms the existence of the document Belmont referenced. Pass 11 logged Belmont’s “OSI July 19, 1950 summary” as cited-but-unread. Page 164 is the FBI-side record of that summary’s transmittal, dated the same day and matching subject and date-bracket exactly. This closes a documentary gap in the 1948–1950 New Mexico phenomena chain.
  2. Names the authoring office unambiguously. The summary was prepared by the 17th District Office of Special Investigations, Kirtland AFB — the same office that maintained the cumulative sighting log excerpted in Section 6 (osi-cumulative-sighting-log-full-read-1948-1950). The OSI cumulative log and the OSI summary are likely the same evidentiary base, processed for two different purposes: structured table format for the cumulative log, narrative recapitulation for the summary.
  3. Identifies the 62-85557 cross-file. The original substantive document is filed in 62-85557-217. This is a previously unflagged cross-reference. Future researchers attempting to locate the actual summary text should request 62-85557, not 62-HQ-83894.
  4. Establishes Albuquerque field office as an OSI/Bureau information conduit. Pass 11’s master memo is HQ-level synthesis; page 164 shows the field-office intake step preceding it. Albuquerque routinely forwarded OSI-Kirtland product upward without commentary or jurisdictional claim.
  5. Date-bracket of December 1948 to May 25, 1950 corroborates the seventeen-month observation window that Belmont references in his master memo’s “Since 1948, approximately 150 observations” claim. Belmont’s denominator was almost certainly drawn from this OSI summary’s count.
  6. Information-flow latency. OSI summary completed and transmitted July 19, 1950. Belmont memo synthesizing OSI position: August 23, 1950. The Bureau took 35 days from receipt of OSI’s summary to internal-leadership synthesis memo — a measurable institutional response time for a topic the FBI nominally claimed it had “no jurisdiction” over.
  7. Documentary completeness behavior. SAC Albuquerque transmits “for the completion of the Bureau’s files” with no investigative flag. This is consistent with the Bureau’s standing 1947–1950 jurisdictional posture: passive archival, refer-to-USAF on civilian inquiries (page 162 boilerplate), no independent FBI investigation of phenomena absent espionage indicators. Page 164 is thus a textbook artifact of the Hoover-era FBI’s UAP-information-handling protocol.
  8. Adds zero new substantive sighting data to the corpus. The summary content is filed elsewhere (62-85557-217) and is not in the PURSUE release-01 PDFs reviewed. Unless 62-85557 is released in a future PURSUE drop, the page 164 cover letter is the only Bureau-archival trace of this OSI product available from primary source.

Connections

Open Questions

  1. What is in FBI file 62-85557, and is it requestable via FOIA? The original copy of the OSI 17th District summary is filed in 62-85557-217. The Bureau’s case-file numbering convention puts 62-85557 in the same general subject range as 62-83894 (both 62-series, both ~1949–1950 era). Topic of 62-85557 is not yet established from PURSUE release-01 documents.
  2. Does the OSI summary’s narrative differ from the Belmont taxonomy? Belmont (pass 11) crystallized the OSI position into the three-type taxonomy of green fireballs / discs / meteors with a 150-observation total. Whether the OSI summary itself used that exact taxonomy or whether Belmont imposed it during synthesis is unresolved without access to the underlying document.
  3. Why “S-1 = Air Force” handwritten annotation? Pass 11 noted no equivalent S-1 annotation. The notation appears to be a routing or originating-service marker, but its specific meaning within the Bureau’s 1950 indexing is unconfirmed.
  4. What does “filed with original” indicate operationally? The handwritten arrow next to “Encls.” suggests the actual summary enclosures travelled with this transmittal letter and were filed not in the Flying Discs file but in 62-85557. This is a record-management convention that requires further documentation to characterize fully.

Quotes Worth Keeping

“There is being transmitted herewith a Summary of Observations of Serial Phenomena in New Mexico from December 1948 to May 25, 1950. This recapitulation of data summarizes previous individual sights that have been reported in this area. The summary was prepared by the Inspector General’s Office of the 17th District of Special Investigations, Kirtland Air Force Base, New Mexico.” — SAC Albuquerque to Director FBI, July 19, 1950 (Section 5 page 164, FBI serial 162-83894-V)

“The above information is being submitted for the completion of the Bureau’s files.” — SAC Albuquerque, July 19, 1950 (Section 5 page 164)

“ORIGINAL COPY FILED IN 62-85557-217” — Handwritten right-margin annotation (Section 5 page 164)

“Encls. [arrow] filed with original” — Handwritten enclosure annotation (Section 5 page 164)

“S-1 = Air Force” — Handwritten margin annotation (Section 5 page 164)

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