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The people, organisations, programmes and places that keep turning up. Each page gathers every case that mentions them.
People13
An astronomer, and for years the Air Force's own scientific consultant.
Brad Sparks is a researcher who compiled a catalogue of Project Blue Book unknowns.
Edward J.
In 1974, Don Berliner compiled a list of Blue Book Unknowns for the Fund for UFO Research.
Project Blue Book's man at the top in the mid 1960s.
A researcher behind the scenes.
Three different witnesses named Johnson appear in this archive, centuries apart.
Friday, April 24, 1964.
He spoke for Project Blue Book, from the Air Force press desk.
A researcher who went back to old cases and read the files again.
Assistant to J.
Brad Sparks is a researcher and the compiler of the Comprehensive Catalog of Project Blue Book Unknowns.
Thomas Tulien was a researcher who went back to old cases and questioned the easy answers.
Organisations3
ATIC was where Air Force UFO reports ended up being analysed.
A research fund that kept the Air Force's unsolved cases in view.
A research institute in Columbus, Ohio, quietly enlisted by the Air Force to study UFO reports.
Programmes and projects4
The US Air Force's long-running inquiry into unidentified flying objects grew out of Project Sign and Grudge.
Project Sign was the Air Force programme that gathered flying saucer reports in 1948.
In the early years, the US Air Force ran its UFO investigations through Project Grudge.
Skyhook was a classified Navy programme of high altitude research balloons, and its name surfaces again and again in the archive.
Places4
An Air Force base in Ohio, called Wright Field in the earliest records.
An Air Force base where the uncensored Project Blue Book files could still be read.
Giant Rock rises seven stories out of the Mojave Desert near Landers, California.
Washington, D.C.