In 1984, Jaime Shandera allegedly received a brown envelope with an Albuquerque, New Mexico postmark containing a canister of exposed but undeveloped black & white 35mm film. Along with friends, he spent two years trying to authenticate the photographs. The documents became known as the Majestic-12 documents, or MJ-12.

The MJ-12 papers were an 8-page briefing to President Eisenhower discussing a UFO crash in Roswell, New Mexico in 1947, another crash site at El Indio, Texas, in 1950, and listing the government members of the special MJ-12 research group. The 8-page document was dated 18 November, 1952, and named Admiral Roscoe H. Hillenkoetter as the briefing officer. Additionally, a memo from President Harry S Truman to Secretary of Defense Forrestal authorized the creation of the MJ-12 group.