July 3, 1952 — Chicago, II
11:50 p.m. Mrs. J. D. Arbuckle sees two bright pastel-green discs fly straight and level very fast for 6 seconds over Chicago, Illinois. The next day the Air Force public information office at O’Hare Airport says it has received 16 reports of UFOs over Chicago in the past week. An Air Force spokesman says that jet patrols are on alert 24 hours a day. [Eberhart]
Sources:
“Deny Reports of ‘Saucers’ Alerts,” Waterloo (Iowa) Courier, July 4, 1952, p. 1;
Brad Sparks, Blue Books Unknowns Catalogue, Case 659, p. 145;
