Glendora, CaliforniaJanuary 1957

Insufficient Data

Summary

On the evening of January 27, 1957, residents of Glendora, California reported seeing a bright disc-shaped object hovering over their house. According to a report filed by the Glendora Chief of Police, the object made a swishing sound and shook the house. The case file identifies the observers as a resident and their son.

The Air Force received the report as part of Project Blue Book, the service's official investigation program into unidentified flying objects. The covering message from Air Force officers indicated that the object was "probably aircraft" but requested only a brief, general contact with the witnesses in order to close the case quickly. However, the investigators noted in their final assessment that there was insufficient data to establish even a probable aircraft identification.

The case was officially listed as "insufficient data for evaluation" by the Air Force, meaning the available evidence did not support any definitive conclusion about what the witnesses had seen.

The full case file is reproduced below as held by the National Archives, with 22 pages of declassified records.

Reported location

Glendora, California

Date of incident

January 1957

State / country

CA / US

Page count

22 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 27

Original case file scans

Original case file · scanned by NARAPage 1 of 22

View transcribed text

: PROJECT 10073 RECORD CARD
3 ; (Eo LE
| 1. DATE 2. LOCATION Si Bee perme
\ |
3 ; coil 3 Vos Balloon
a Zi cdanaany. 12999 Glendora California O Probably Balloon
] BR el EE a ee ee eee) Pa gel BI Bl on
3 3. DATE-TIME GROUP 4. TYPE OF OBSERVATION y Lh
3 Sa ey Vi o i 0 Wos Aircrofr |
J Llecal 2000 »:Ground- Visual Ground Radar O Probably Aircraft
iE CMT ____23/0520% 0 Air-Visuai D Air-Intercept Radar 0 Possibly Aircrafs
8 5. PHOTOS 6. SOURCE 0 Was Astronomical
| 8 0 Yes 0 Probably Astronomical
g SOENe Civilian O Possibly Astronomical |
3 7. LENGTH OF OBSERVATION | 8. NUMBER OF OBJECTS | 9. COURSE (ej 01 A Ra me SE
vo 2X Insufficient Data for Evaluation
a A 2 0 Unknown
a not rptd one Sat 6 Yo yt Ali ol b Upla
| 10. BRIEF SUMMARY OF SIGHTING 11. COMMENTS i)
0) Rpt from Chief of Police, Glendora, ‘Evaluated a probable a/c in TWX
3 California that an object was sighted requesting investigation; how-
1 by resident and son, Described as a ever, data not sufficient to
Ee bright disc hovered, made a swishing establish this evaluation,
4 sound and shook house, Case listed as insufficient data.
F A ————— ——————  ———— nb Art aati cto
FE ATIC FORM 329 (REV 26 SP 52)
b)
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|
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y

/ 22

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Source: National Archives Catalog · NAID 28968872