Edward J. Ruppelt was the Air Force officer who led Project Blue Book. He arrived in Lubbock in late September 1951 as a lieutenant with Project Grudge. He came to question professors who had watched a formation of lights pass overhead. In 1952, as a captain, he rebuilt the Mantell case from damaged microfilm and settled on a classified Navy Skyhook balloon. That same summer, during the Washington, D.C. flap, Truman's air aide phoned him while the President listened on another line. His 1956 book, The Report on Unidentified Flying Objects, left the Washington sightings as unknowns.
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Pro earlyUSAF officer reported to have called it one of the most mystifying early-sighting reports
Project Blue Book head who called the case a hoax in 1956
Project Blue Book chief who described the internal debate over the case
Project Blue Book head who recounted the case in his 1956 book
Project Blue Book chief who in 1952 called the photos "probably not authentic"
Project Blue Book chief who publicised the case in 1956
Later head of Project Blue Book, who wrote about the memo era and the Estimate of the Situation
Project Blue Book head who proposed the Skyhook balloon explanation
Author of The Report on Unidentified Flying Objects (1956)
Author of The Report on Unidentified Flying Objects (1956)
Later head of Project Blue Book, wrote up the case in his 1956 book
Author who published the account in The Report on Unidentified Flying Objects
Project Blue Book head, author of The Report on Unidentified Flying Objects
Pro earlyAuthor of The Report on Unidentified Flying Objects (1956), first public account of the sightings
Later head of Project Blue Book, called it one of the best sightings
Later head of Project Blue Book, retold the case in his 1956 book
Former head of Project Blue Book; proposed the Skyhook balloon explanation in 1956
Pro earlyProject Blue Book chief, wrote about the case in 1956
Former head of Project Blue Book who retold the case in his 1956 book
Project Blue Book head who had the film reanalysed in 1952
ATIC and Project Blue Book officer who wrote about the case
Project Grudge/Blue Book investigator who went to Lubbock
Head of the reorganised Grudge and Project Blue Book, chronicler of the case
Pro earlyHead of the Air Force UFO project; visited General Mills in January 1952
ATIC officer on the case, later head of Project Blue Book
Project Blue Book chief who described the radar targets in his 1956 book
Former Project Blue Book head who visited the Giant Rock gatherings
Head of Project Blue Book, received the film
Project Blue Book head, covered the case in his 1956 book
Project Blue Book chief who wrote up the case in 1956
Head of Project Blue Book at the time
Head of Project Blue Book
Project Blue Book; re-examined the case in The Report on Unidentified Flying Objects (1956)
Head of Project Blue Book, wrote up the case in his 1956 book
Project Blue Book chief who led the investigation
Pro earlyHead of Project Blue Book; wrote about the case in his 1956 book
Author of The Report on Unidentified Flying Objects (1956), which covered Mainbrace
Head of Project Blue Book who judged Adamski a con artist
Pro earlyAuthor of The Report on Unidentified Flying Objects (1956), which made the case known
Project Blue Book chief who briefed the panel
Head of Project Blue Book who interviewed the witnesses at Ellsworth
Former head of Project Blue Book, attended the 1955 convention
Head of the Air Force UFO project who commissioned Battelle