Spot Intelligence Reports - Chicago, Illinois, July 1952

This document consists of a series of Spot Intelligence Reports generated by the Office of Special Investigations and the 4706th Defense Wing regarding Unidentified Aerial Phenomena observed over Chicago, Illinois, in July 1952. The reports detail two distinct incidents. In the first, occurring on 22 July 1952, a witness reported seeing two disc-like, grey objects flying southwest toward Lake Michigan at 0640 hours. The witness, who was driving on Humboldt Boulevard, was unable to estimate the speed or altitude of the objects due to their rapid disappearance. A second report, dated 24 July 1952, describes a sighting by an attorney who observed five to seven luminous spots in the sky at 2145 hours while attending an outdoor concert. The witness described the objects as traveling in an irregular, horizontal line from south to north at the zenith. He estimated their speed to be between 1500 and 2000 miles per hour and noted that they made no sound. A formal Air Intelligence Information Report (AF Form 112) was completed on 26 July 1952, summarizing a sighting by Mr. Larry Seborg, a former Technical Sergeant in the 12th Air Force. Mr. Seborg and his wife observed four grey, round objects in a formation of two, described as having a 'flattery motion like geese.' The objects were observed at 2230 hours on 22 July 1952, traveling from east to west at an elevation of 60 to 70 degrees. The report notes that the weather was clear with a visibility of 15 miles and a slight temperature inversion at 45,000 feet. The investigator concluded that there was no known activity or condition to account for the sighting, no physical evidence was found, and no interception action was taken.