The Philadelphia 'Soap Suds' Flying Disc, September 26, 1950 (Two FBI Memos)

Summary

Late evening, September 26, 1950, on Vare Boulevard near 26th Street in Philadelphia: two Philadelphia Police Department officers in a scout car saw an object descending slowly through their windshield. They thought it was a parachute. It landed gently in a roadside field — so gently it didn’t bend the weeds. They summoned two more officers. Over the next ~25 minutes the four watched the object, tried to handle it, watched it break and dissolve, and were left with a slight sticky residue and nothing else.

The case is documented inside FBI 62-HQ-83894 by two contemporaneous memos that are now public-domain markdown after PURSUE Release 01:

1. The day-of internal phone-call memo from L. L. Laughlin to A. H. Belmont, September 27, 1950 (Section 6 page 8) — captures the case as it broke, including SAC Cornelius’s complaint that the local Air Force office “knew nothing about them and was not aware that his office was looking into reports of this type.”
2. The formal SAC Philadelphia → Director memo, October 2, 1950 (Section 6 page 18) — full case description, with the “Flying Saucer Just Dissolves” Philadelphia press headline that ran on the case, and the bureau’s disposition: refer to Air Force OSI, take no further FBI action.

This is a small case by mid-century UFO standards — no chase, no radar, no claim of intelligent control. What makes it worth a wiki page is that the FBI’s own paper trail records the physical signature in unusually concrete terms: 6 ft diameter, lavender/purplish glow described as “almost a mist,” soft landing that didn’t depress vegetation, dissolution into a slight sticky residue that disappeared on contact. That physical fingerprint matches a small but recurring class of mid-century soft-landing / dissolving-residue reports that AARO’s official catalog does not surface, and which the FBI’s contemporaneous internal documentation is the cleanest source for.

What the Two FBI Memos Document

September 27, 1950 — Laughlin to Belmont, internal phone call (Section 6 page 8)

L. L. Laughlin’s same-day office memo to Assistant Director A. H. Belmont, recording a 10:45 a.m. phone call from SAC Cornelius of the Philadelphia field office. Cornelius’s account, paraphrased in Laughlin’s memo:

• “Two officers of the Philadelphia Police Department” in their scout car saw “an object descending slowly to the earth which appeared at first glance to be a parachute.”
• The object was “at tree-top level” when first spotted, “six feet in diameter.”
• It landed in a nearby field. The officers examined it. It “gave out a purplish glow which was almost a mist.”
• The officers “summoned two other police officers” — total four witnesses.
• They “attempted to pick it up. The object broke, leaving a slight odorless residue.”
• “Over a period of about 25 minutes which the officers spent watching the object it completely disintegrated.”
• Specific physical detail: “the object was so light that when it hit the field, it did not even bend the weeds or the grass it fell on.”

Operational note: SAC Cornelius reported he had already called the local Air Force office, but “the individual with whom he spoke there said he knew nothing about them and was not aware that his office was looking into reports of this type.” Laughlin instructed Cornelius to refer the matter to OSI and to send the Bureau a formal letter.

October 2, 1950 — SAC Philadelphia to Director, formal report (Section 6 page 18)

The follow-up formal memo. Reframes the case for the FBI Director’s file:

• Case dated to “the late evening hours of September 26, 1950.”
• Location: Vare Boulevard near 26th Street, Philadelphia.
• “Round object about six feet in circumference [sic — earlier memo says diameter] slowly float down to the ground.”
• “The object had the appearance of a parachute and landed in a field, it being so light it did not even depress the weeds in the field.”
• New physical detail: “The object was lavender in color, described by the officers as dewy, sort of like soap suds, and evaporating within fifteen or twenty minutes after it landed.”
• “When touched by the officers, the substance composing the object disappeared, leaving nothing but a slight sticky substance.”
• The Philadelphia press carried the case under the headline “Flying Saucer Just Dissolves.”
• Disposition: Laughlin advised that the matter be referred to Air Force Intelligence; SAC Philadelphia notified Major Watts of Philadelphia OSI; “no further action was taken by this office.”

The memo is stamped 62-83894-251, with red “DEFERRED” margin annotation.

Why This Matters

1. It’s the FBI’s own internal language for the case, not a clipping. The Laughlin memo is a contemporaneous phone-call record from the day after the event, written by an FBI assistant in his own words from a SAC’s verbal report. The formal SAC Philadelphia memo five days later is the considered second pass. Both pre-date public press treatment in any depth.

2. The physical signature is unusually consistent across two independent FBI write-ups. Six-foot object. Soft landing that did not bend vegetation. Lavender / purplish color. Glow described as “almost a mist” / “dewy, sort of like soap suds.” Dissolution timing 15–25 minutes. Slight sticky odorless residue on contact. The two memos were drafted by different officials from independent inputs and they agree on the physical description. That kind of cross-memo agreement is uncommon in 62-HQ-83894.

3. Class of case AARO’s catalog does not address. The PURSUE Release 01 official AARO descriptions are dominated by infrared sensor “areas of contrast” — modern thermal-imager material. The 1950 Philadelphia case is on the opposite end of the witness-evidentiary spectrum: four ground-level law-enforcement officers handling a physically-present object that left a residue. There is no contemporary modern-equivalent class of case in the AARO catalog. This is a mid-century soft-landing / dissolving-residue report and the FBI documentation is now primary-source available for anyone who wants to do comparative analysis.

4. The Air Force “knew nothing” admission is on the record. SAC Cornelius’s call detail — that the local AF office did not know the Air Force was looking into this kind of report — corroborates the broader 1950 picture: that the FBI / AAF / OSI handoff for “flying saucer” reports was disorganized in the immediate post-Project Sign / pre-Project Blue Book era. (Project Grudge had been dissolved in late 1949; Blue Book did not formalize until 1952.)

5. Linkage to angel-hair / flying-disc-residue mythology. The “soap suds” / “dissolves on contact” / “slight sticky residue” pattern is the closest mid-century FBI-documented analog to the angel hair phenomenon (filamentous material reportedly dropped by flying-disc sightings in the late 1940s and 1950s, which dissolved on contact). The Philadelphia memos do not call it angel hair — but the physical signature matches. Worth flagging for anyone tracking this lineage.

Connections

• PURSUE full inventory
• PURSUE master report
• maury-island-1947
• PURSUE program
• AARO
• Department of War
• UAP disclosure (concept)

Open Questions

• The four Philadelphia police officers are not named in either memo — only their department. Field-office records (and the SAC Philadelphia formal memo’s enclosures, which were not OCR’d if they exist as separate pages) likely identify them. Worth a follow-up grep through the rest of Section 6.
• The “slight sticky substance” left after handling: was any sample retrieved by the officers or the OSI follow-up? Neither FBI memo says so. Air Force OSI’s own paper trail (not in 62-HQ-83894) is the more likely place that question lives.
• Did Major Watts (Philadelphia OSI) produce a follow-up report? The FBI memos drop the trail at “no further action was taken by this office.”
• Is there a Project Grudge / Project Blue Book record of this case? Worth cross-referencing against the Blue Book unknowns/explained ledger.
• Section 6 also contains the September 8, 1950 Hoover-to-AF Inspector General transmittal of a letter from Walter D. Jones of Toronto, Ontario (page 6), and a separate September 25, 1950 [redacted] State Police flying-disc memo (page 19) that is mostly illegible in OCR. These are part of the same late-September 1950 cluster but do not yet warrant their own pages.

Quotes Worth Keeping

“Two officers of the Philadelphia Police Department were cruising in their scout car they saw through the windshield an object descending slowly to the earth which appeared at first glance to be a parachute… The object was so light that when it hit the field, it did not even bend the weeds or the grass it fell on.” — L. L. Laughlin to A. H. Belmont, 9/27/1950, Section 6 page 8

“The object was lavender in color, described by the officers as dewy, sort of like soap suds, and evaporating within fifteen or twenty minutes after it landed. When touched by the officers, the substance composing the object disappeared, leaving nothing but a slight sticky substance.” — SAC Philadelphia to Director, 10/2/1950, Section 6 page 18, file # 62-83894-251

“Mr. Cornelius said that he has called the local office of the Air Force but the individual with whom he spoke there said he knew nothing about them and was not aware that his office was looking into reports of this type.” — Laughlin memo, 9/27/1950, recording SAC Philadelphia’s frustration with AF non-coordination

Headline that ran in the Philadelphia press the next day: “Flying Saucer Just Dissolves”