Project 10073 Record — Chicago, Illinois, 15 September 1966

This document contains the records for a UFO sighting reported on 15 September 1966 in Chicago, Illinois. The witness, a housewife and hairdresser, observed four objects from her 9th-floor apartment window for approximately one and a half hours. She described the objects as round, flat at the edges, and thicker in the center, with a white-gray color and an estimated diameter of 13 feet. The objects were observed circling and eventually climbing toward the southwest. The witness used 8x30 binoculars to aid her observation. The report includes a formal record from the 928th Troop Carrier Group at O'Hare International Airport and a follow-up letter from Major Hector Quintanilla of Project Blue Book, dated 27 September 1966, informing the witness that the provided information was insufficient for evaluation and requesting further details via FTD Form 164. An investigator, Clayton W. Salmonson, noted his personal belief that the witness had indeed seen something, citing the fact that she had called her husband home from work early, though he admitted he had no explanation for the sighting.