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Weather Balloon or UFO? | The Mantell UFO Incident - YouTube
U.S. Naval Institute on Twitter: "#OTD in 1948, Capt. Thomas Mantell of the Kentucky Air National Guard died after he crashed his P-51 while pursing a "flying saucer." Project Blue Book investigators
The Mantell UFO Incident - Legacy.com
Simpson County crash part of UFO history | News | bgdailynews.com
Remembering Mantell plane crash after 72 years | | franklinfavorite.com