U.S. Government UFO Document (UFO Paper):
“The Investigation of UFO’s” 
by Hector Quintanilla, Jr.
(Central Intelligence Agency, Washington, D.C.)

Major Hector Quintanilla, Jr. was the last chief officer of Project Blue Book, the U.S. Air Force’s investigation into the UFO phenomenon:

https://www.cia.gov/library/center-for-the-study-of-intelligence/kent-csi/vol10no4/html/v10i4a07p_0001.htm
















The late Major Hector Quintanilla, Jr., U.S. Air Force 
(theufochronicles.com photo)