UFO Article (Blog):
“Don Keyhoe in 1960”
by Dr. Michael D. Swords,
21 April 2010 (The Big Study)

Michael D. Swords writes about the UFO views of Donald E. Keyhoe:

http://thebiggeststudy.blogspot.no/2010/04/don-keyhoe-in-1960.html

The late Major Donald Edward Keyhoe, U.S. Marine Corps,

NICAP Director, UFO Author & Researcher
(youtube.com image)

UFO Radio Interview:
Robert L. Hastings
(Dark Matters Radio, U.S.A.)

Host Don Ecker presents a May 2009 The Paracast (co-hosted by Gene Steinberg and David Biedny) radio broadcast:

http://www.dqrm.com/shows/DMR/2012/wk30/dmr-31-m.mp3

Robert L. Hastings,
U.S. UFO Author,
Lecturer & Researcher
(ovnis-usa.com image)

Don Ecker, U.S. Radio Host & UFO Researcher
(paradigmresearchgroup.org image)