Dr. Villareal has found over 100,000 light-reflecting unidentified objects on the plates of the Palomar Observatory, the most prominent observatory in use in the 1950s.
Well, a man who held just about every clearance in the book and ran the Harvard Observatory in the 1950s, who was also part of the Bureau of Public Standards, basically compiling a lot of the astronomical data known to the public in the 50s and 60s, was a guy named Donald Menzel.