“ ‘Flying Saucer’ Seen By 50 At Ohio Airport”,
9 March 1950 (Daytona Beach Morning Journal, Florida)
A UFO was sighted over Vandalia Airport near Dayton, Ohio by about fifty persons on 8 March 1950, according to the article:
http://news.google.com/newspapers?id=QHQoAAAAIBAJ&sjid=4McEAAAAIBAJ&pg=2744,6092831
Aerial view of James M. Cox Dayton International Airport in Vandalia, Ohio (north of Dayton, Ohio) (wikimedia.org photo)