Lake Silkworth, PennsylvaniaMay 1957

Insufficient Data

Summary

Project Blue Book, the U.S. Air Force's 22-year UFO investigation program, opened a case file on a sighting reported from Lake Silkworth, Pennsylvania in May 1957. The full case file (3 scanned pages of witness statements, Air Force memoranda, and investigator notes) is reproduced below as held by the National Archives. The Air Force assigned this case to its broader investigation of unidentified aerial phenomena alongside ~12,600 other reports filed between 1947 and 1969. Citation: NARA Record Group 341, Microfilm Publication T1206, Roll 27.

Reported location

Lake Silkworth, Pennsylvania

Date of incident

May 1957

State / country

PA / US

Page count

3 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 27

Original case file scans

Original case file · scanned by NARAPage 1 of 3

Transcribed text

PROJECT 10073 RECORD CARD

1. DATE
2 May 1957

2. LOCATION
Lake Silkworth, Pennsylvania

3. DATE-TIME GROUP
Local
GMT 02/1815Z

4. TYPE OF OBSERVATION
[X]Ground-Visual
[ ] Air-Visual
[ ] Ground-Radar
[ ] Air-Intercept Radar

5. PHOTOS
[ ] Yes
[X]No

6. SOURCE
Civilian

7. LENGTH OF OBSERVATION
15 minutes

8. NUMBER OF OBJECTS
one

9. COURSE
overhead/stationary

12. CONCLUSIONS
[X] Was Balloon
[ ] Probably Balloon
[ ] Probably Balloon
[ ] Was Aircraft
[ ] Probably Aircraft
[ ] Possibly Aircraft
[ ] Was Astronomical
[ ] Probably Astronomical
[ ] Possibly Astronomical
[ ] Insufficient Data for Evaluation
[ ] Unknown

10. BRIEF SUMMARY OF SIGHTING
One round, grey pea-shaped object seen directly overhead. Object moved out of range in fifteen minutes.

11. COMMENTS
Description, duration, indicate that this sighting was caused by a weather balloon.

ATIC FORM 329 (REV 25 SEP 52)

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Source: National Archives Catalog · NAID 28969807

Connected across the archive

People

LT EUGENE I HALBACHW

Organizations

26ADIV (DEF) ROSLYN AFS ROSLYN NY 64STH AC&W SQ BENTON AFS ADC ENT AFB COLORADO AIR TECH INTEL CEN WRIGHT PATTERSON AFB OHIO BENTON PA DET 3, RYPWND AISS STEWART AFB NY HQ USAF WASH

Programs and code names

Project Blue Book

Places

Lake Silkworth Lake Silkworth, PA Lake Silkworth, Pennsylvania Pennsylvania