From the files of Project Blue Book, this Strange Columbus March 13, 1952 UFO event was ultimately concluded to have been a B-45 plane.
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UFO Database
From the files of Project Blue Book, the December 22, 1951 UFO event was extensively investigated due to the military source of the report. The conclusion was that it was “probably” a balloon.
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UFO Database
Mutual UFO Network
National UFO Reporting Center
From the files of Project Blue Book, the October 2, 1951 UFO case doesn’t have much information and was never explained.
For more incidents around the world, visit the following links.
UFO Database
Mutual UFO Network
National UFO Reporting Center