“Air Force Base Reports Flying Saucer ‘Passes’ ”,
22 June 1950 (Pittsburgh Post-Gazette, Pennsylvania)
Three U.S. Air Force men sighted a UFO over Hamilton Air force Base in California on 21 June 1950, at 1:35 a.m., according to the Pittsburgh Post-Gazette:
http://news.google.com/newspapers?id=shMNAAAAIBAJ&sjid=jGoDAAAAIBAJ&pg=5314,2398153
The article continues on page 7.
“Historic Posts, Camps, Stations and Airfields:
Hamilton Air Force Base” (The California State Military Museum):
http://www.militarymuseum.org/HamiltonAFB.html
Wikipedia article: “Hamilton Air Force Base”:
http://en.wikipedia.org/wiki/Hamilton_Air_Force_Base
Hamilton Air Force Base was decommissioned on 1 October 1973, according to the Wikipedia article.
Hamilton Air Force Base, Novato, California, 1941
(militarymuseum.org photo)