Project 10073 Record Card — Walworth, Wisconsin, 5 November 1957

On November 5, 1957, a civilian witness in Walworth, Wisconsin, reported observing an unidentified aerial object for approximately nine minutes, between 2352Z and 2359Z. The witness described the object as small and round, exhibiting red and white flashing lights. The object was initially stationary before moving in an upward and downward motion in the western sky, eventually disappearing in an upward direction. The witness reported no sound or tail associated with the object. The report was processed by the 755th ACWRON and forwarded to various intelligence commands, including the Air Intelligence Center and the Director of Intelligence at Headquarters USAF. The official conclusion reached by the investigating officer, Captain Blohm, was that the sighting was likely a balloon launched at night with lights attached, noting that the description provided by the witness was characteristic of such an object. Weather conditions at the time were reported as scattered, with a ceiling of 4500 feet and visibility of 15 miles. No radar contact, photographic evidence, or physical traces were associated with the incident.