List of ufologists
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- Paul Dean
- Allen Tiller - paranormal investigator, historian and author
- Ademar José Gevaerd (b. 1962)
- Stanton Friedman, (b. 1934), U.S. born Canadian ufologist, former nuclear physicist, did early research on Roswell and also MJ-12 documents.[verification needed]
- Paul Hellyer, (b. 1923), Former Canadian Defense Minister. Officially inaugurated a UFO landing pad in St. Paul, Alberta; the first in the world.[verification needed]
- Jacques Bergier (1912–1978), writer, co-wrote the best-seller The Morning of the Magicians.
- Robert Charroux (1909–1978), writer, promoted the Ancient astronauts theory.
- Rémy Chauvin (1913–2009), biologist and entomologist.
- Aimé Michel (1919–1992), writer and ufologist.
- Jean-Pierre Petit (b. 1937), scientist, senior researcher at National Center for Scientific Research CNRS as an astrophysicist. Promoted the Ummo theory. Created the Ufo-Science Association.
- Jacques Vallée (b. 1939) computer scientist, important figure in the UFO studies in France and in the United States. Promoted the extraterrestrial hypothesis and later the interdimensional hypothesis.
- Ali RaisDanaei, Iranian Young Ufologist and Researcher. 
Seyed Hamed Mirostvarmoghadam, Iranian Ufologist and Researcher, Seyed Mohammad Hajimirghasemi, Iranian Ufologist and Researcher.
- Monsignor Corrado Balducci, (1923–2008), Roman Catholic theologian of the Vatican Curia long time exorcist for the Archdiocese of Rome.[verification needed]
- Iker Jiménez Elizari (b. 1973), journalist born in the Basque city of Vitoria. He's licensed in Sciences of the Information by the Complutensian University of Madrid and the European University of Madrid. His wife, Carmen Porter, is also a journalist and investigator on paranormal activity; both work together in the show Cuarto Milenio, in the TV network Cuatro, and its radio version Milenio 3 in Cadena SER, about paranormal activity, Ufology and other mysteries.[verification needed]
- Erich von Däniken, (b. 1935), controversial Swiss author best known for his books which examine possible evidence for extraterrestrial influences on early human culture.
- Billy Meier, (b. 1937)
- George King, (1919–1997) regarded himself as "Primary Terrestrial Mental Channel" for great and evolved extraterrestrial Intelligences.[verification needed]
- Elizabeth Klarer, (1910–1984), South African contactee and UFO photographer.[verification needed]
- Nick Pope, Former head of the UFO desk, Ministry of Defence; author of Operation Thunder Child.
- Jenny Randles, (b. 1951), British author and former director of investigations with the British UFO Research Association (BUFORA).[unreliable source?]
- Brinsley Le Poer Trench, (1911–1995), ufologist and a firm believer in flying saucers, and in particular, the Hollow Earth theory.[unreliable source?]
- Colin Wilson, (1931–2013), English philosopher and author of Alien Dawn (1999).
(Malcolm Robinson) (b. 1957) Scottish UFO & Paranormal researcher. Founder of Strange Phenomena Investigations. Author and lecturer.
- George Adamski (April 17, 1891–April 23, 1965), controversial UFO contactee and known hoaxer of the 1950s, wrote several bestselling books about his encounters with friendly "space brothers" from other planets.
- Orfeo Angelucci (aka Orville Angelucci) (June 25, 1912–July 24, 1993), one of the most unusual of the mid-1950s UFO contactees.[verification needed]
- Stephen G. Bassett, extraterrestrial life (ET) lobbyist, treasurer of the Extraterrestrial Phenomena Political Action Committee, and executive director of Paradigm Research Group
- Art Bell (birth name: Arthur William Bell, III) (Jun 17, 1945-Apr 13, 2018), U.S. radio broadcaster and author, known primarily as the founder and longtime host of the paranormal-themed radio program Coast to Coast AM.
- William J. Birnes, American writer, editor, book publisher and literary rights agent. He is best known as an active publisher of UFO literature (UFO Magazine) and is a New York Times bestselling author.
- Jerome Clark (b. 1946), UFO historian, author of the UFO Encyclopedia
- Philip J. Corso (1915–1998), Army Military Intelligence officer, wrote highly disputed book on Roswell UFO incident.
- Robert Dean (March 2, 1929-11 October 2018), ufologist, reportedly read a document called An Assessment (1964), a NATO report on UFOs prompted by an incident on February 2, 1961 during which 50 UFOs allegedly appeared over Europe.
- Glenn Dennis (b. 1925), founder of the International UFO Museum and Research Center in Roswell, New Mexico, which opened in September 1991. Dennis is a self-professed witness to the Roswell UFO incident (1947).
- Richard M. Dolan (b. 1962), author of UFOs and the National Security State, Vol. I: Chronology of a Cover-Up 1941–1973, and a frequent speaker at UFO conferences. Also, a co-host of the television series Sci-Fi Investigates.[unreliable source?]
- Danielle Egnew (b. February 28, 1969), American Psychic / Medium and Paranormal Radio, TV and Film host. Contactee who regularly reports on first-hand communication with extraterrestrial species along with detailed physics / design of extraterrestrial propulsion systems.[verification needed]
- Raymond E. Fowler (b. 1934), long-time UFO investigator, details one of the best multiple witness alien abduction cases on record, author of The Andreasson Affair and The Allagash Abductions.
- Daniel Fry (July 19, 1908–December 20, 1992), American contactee who claimed he had multiple contacts with an alien and took a ride in a remotely piloted alien spacecraft on July 4, 1949.[verification needed]
- Allen H. Greenfield (b. 1946), American occultist, Ufologist, writer, editor.[verification needed]
- Steven M. Greer (b. 1955), American physician known as a proponent of openness in government, media and corporations when it comes to advanced technologies that he and others believe to have been shelved and hidden from public awareness for reasons of profit and influence.[verification needed]
- Richard H. Hall (December 25, 1930–July 17, 2009), former assistant Director of NICAP in the 1960s, former director of the Fund for UFO Research in the 1980s.
- Charles I. Halt,(b. 1939) retired USAF Colonel who was a key figure in the Rendlesham UFO incident in 1980.
- Allan Hendry (b. 1950), astronomer, full-time UFO investigator for the Center for UFO Studies in the late 1970s and early 1980s.[verification needed]
- Budd Hopkins (b. 1931), alien abduction researcher.[verification needed]
- Linda Moulton Howe (b. 1942), journalist known for investigating cattle mutilations.[verification needed]
- J. Allen Hynek (May 1, 1910–April 27, 1986), astronomer, consultant to Project Blue Book (USAF). Founded CUFOS (Center for UFO Studies).[verification needed]
- Morris K. Jessup ( March 2 or 20, 1900–April 20, 1959), photographer, is probably best remembered for his pioneering ufological writings and his role in uncovering the so-called Philadelphia Experiment.[verification needed]
- John Keel (birth name: Alva John Kiehle) (March 25, 1930–July 3, 2009), journalist, investigated the famous Mothman Sightings in West Virginia in 1966 and 1967.[unreliable source?][verification needed]
- Donald Keyhoe (June 20, 1897–November 29, 1988), aviator and Marine Corps officer, was the leader of NICAP, the largest civilian UFO research group in the U.S., in the 1950s and 1960s.[verification needed]
- Philip J. Klass (November 8, 1919 – August 9, 2005), senior editor of Aviation Week and Space Technology, leading UFO skeptic/debunker from mid-1960s until his death in 2005.
- George Knapp (b. 1952), American investigative journalist.
- Bob Lazar (b. 1959), former physicist and owner of a mail-order scientific supply company who claims to have worked from 1988 until 1989 at an area called S-4 (Sector Four).
- Bruce Maccabee (b. 1942), retired US Navy optical physicist, has analyzed numerous UFO videos and photos.[non-primary source needed][verification needed]
- Jim Marrs (December 5, 1943 – August 2, 2017), conspiracy theorist, news reporter, college professor, and author of books and articles on a wide range of assorted conspiracy theories.[verification needed]
- Riley Martin (b. 1946), self-described alien contactee, author, and radio host.
- John E. Mack (1929–2004), Harvard psychiatrist/professor, alien abduction researcher.
- Donald Howard Menzel (1901–1976), professor of astronomy at Harvard University, leading UFO skeptic of the 1950s and 1960s.
- James W. Moseley (1931–2012), editor of Saucer Smear, long-time observer, author and commentator of the UFO phenomena.
- George Noory (b. 1950), broadcaster of the popular "Coast to Coast" radio broadcast; the program discusses paranormal events.
- Curtis Peebles, aerospace historian for the Smithsonian Institution, also a leading UFO skeptic.[verification needed]
- Kevin D. Randle (b. 1949), captain in the US Air Force Reserves; also a leading investigator of the Roswell UFO Incident in 1947.[verification needed]
- Nick Redfern (b. 1964), British ufologist/Cryptozoologist now living in Dallas, Texas, US.[verification needed]
- Edward J. Ruppelt (July 17, 1923–September 15, 1960), Air Force captain who supervised Project Blue Book, the Air Force's official study of the UFO phenomenon in the 1950s and 1960s.[verification needed]
- Harley Rutledge (1926–2006), solid-state physicist, Southeast Missouri State University.[non-primary source needed][verification needed]
- Robert Sheaffer (b. 1949), member of CSICOP's UFO subcommittee, a leading UFO skeptic/debunker.
- Whitley Strieber (b. 1946), author of Communion, UFO researcher, paranormal phenomena expert, and alleged abductee.
- Leonard H. Stringfield, (1920–1994), American ufologist who took particular interest in crashed flying saucer stories.
- Michael D. Swords, biophysicist at Western Michigan University, prominent ufologist for the Center for UFO Studies.
- Jacques Fabrice Vallée (b. 1939), scientist, author.
- Rowan A. Burkhardt. Phd. (b. 1997), accredited Doctor of Ufology from Los Angeles Development Church & Institute .
- Scott C. Waring (b. Aprl 28, 1968) A controversial researcher known worldwide, best known for finding alien evidence inside of NASA, ESA and JAXA photos. Author of UFOs of 2006-2009. He has been in the TV shows Ancient Aliens and Destination Truth, also New Scientist stated, “that Scott Waring has created a whole new area of science that needs serous consideration.” He now runs UFO Sightings Daily website.
- "UFO INFO: "Argentina: Ufologist to Visit Policeman in Disappearance Case." (Fabio Zerpa)". Retrieved February 5, 2008.
- "Statement by Stanton T. Friedman". National Capital Area Skeptics. January 2001. Retrieved September 27, 2011.
- "Former Canadian Minister of Defence Asks Canadian Parliament Asked To Hold Hearings on Relations With Alien "Et" Civilizations". UFO Digest. November 24, 2005. Retrieved January 19, 2008.
- Leivak, Verni (July 13, 2013). "Igor Volke ja avanev maailm" (in Estonian). Postimees.
- Bowman, Marion; Valk, Ulo (2014). Vernacular Religion in Everyday Life: Expressions of Belief. Routledge. ISBN 978-1-317-54353-4.
- "Skeptic Report/ UFO Bibliography: Salatun, J". Archived from the original on December 22, 2007. Retrieved February 5, 2008.
- DanestanihaMag, No.189
- "Monsignor Corrado Balducci". Paradigm Research Group. Retrieved January 1, 2008.
- "http://www.paradigmresearchgroup.org Jaime Maussan: 2005 PRG Courage in Journalism". Retrieved February 5, 2008. External link in
- "Archived copy". Archived from the original on November 8, 2004. Retrieved July 4, 2012.
- "Biblioteca OZN in casa lui Iorga". jurnalul.ro. Retrieved April 13, 2016.
- Doru Davidovici as SF writer & UFO researcher (in Romanian)
- ":: Ikerjimenez.com :: Periodismo de lo desconocido :: Descubre Milenio3 y Cuarto Milenio ::". ikerjimenez.com. Retrieved April 13, 2016.
- "TELEVISION – Programas de Televisión en Cuatro.com TV". cuatro.com. Archived from the original on February 28, 2009. Retrieved April 13, 2016.
- "Official Site: EuroUfo". Retrieved April 1, 2017.
- "Official Site: Erich von Däniken". Retrieved January 1, 2008.
- James R. Lewis (2002). The Encyclopedia of Cults, Sects, and New Religions. Prometheus Books, Publishers. pp. 653–. ISBN 978-1-61592-738-8.
- "The Aetherius Society: Dr. George King, Our Founder". Retrieved February 5, 2008.
- "Galactic Diplomacy: Elizabeth Klarer – Contactee with extraterrestrials from Alpha Centauri". Archived from the original on February 22, 2008. Retrieved February 5, 2008.
- "Official site: Nick Pope". Retrieved February 5, 2008.
- "UFO EVIDENCE: UFO Researchers & People- Jenny Randles". Retrieved February 5, 2008.
- "Brinsley Le Poer Trench: "Legends and the case for Hollow Earth."". Retrieved February 5, 2008.
- "The Queen & the Saucers". Time magazine. June 1, 1959. Retrieved January 1, 2008.
- "(galactic2.net) "He experienced a cosmic glimpse in the spaceship."- Orfeo Angelucci". Retrieved February 5, 2008.
- Vicens, AJ (March 2016). "This Is What It's Like to Be the Only Man in Washington Lobbying for UFOs". Mother Jones. Retrieved April 13, 2016.
- "SPACE.COM: "Legal Web Heats Up Around Art Bell."". Archived from the original on March 24, 2010. Retrieved February 5, 2008.
- Clark, Jerome (1998). The UFO Encyclopedia: The Phenomenon from the Beginning, Volume 2, A-K Detroit: Omnigraphics. Detroit, MI: Omnigraphics. ISBN 0-7808-0097-4.
- "Philip J. Corso's Department of the Army Form 66, Officer Qualification Record". Retrieved January 1, 2008.
- "Own site (Robert Dean): Beyond Zebra". Archived from the original on December 12, 2007. Retrieved January 1, 2008.
- "Roswell Files: Glenn Dennis". Retrieved February 6, 2008.
- "Keyhole Publishing, Dolan bio".
- "Haunted Playground on LA Talk Radio". Cite error: Invalid
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- "Ray Fowler's Home Page". nicap.org. Retrieved April 13, 2016.
- CUFOS. "Center for UFO Studies". cufos.org. Retrieved April 13, 2016.
- "My Experience With the Lie Detector", Daniel Fry, September 1954, "Saucers", Vol. ii, No. 3, pages 6–8.
- "Mysterious America: Interview with Allen H. Greenfield". Archived from the original on December 19, 2007. Retrieved February 6, 2008.
- Greer, Steven (1999). "About Steven M. Greer, M.D.". Extraterrestrial Contact: The Evidence and Implications. Afton, Virginia: Crossing Point. pp. 525–526. ISBN 978-0-9673238-0-0.
- McCarthy, Paul (December 1, 1992). "Close encounters of the fifth kind. (communicating with UFOs)". Omni. Retrieved May 12, 2007.
Greer claims that he is a contactee who has coined the term "close encounter of the fifth kind" to describe human-initiated contact with extraterrestrials.
- "Official site: Richard H. Hall". Retrieved February 6, 2008.
- "UFO Evidence, Rendlesham case report by L.Col. Charles Halt".
- Clark, Jerome (1998). The UFO Encyclopedia: 2nd Edition; Volume 1, A-K. Omnigraphics, Inc. ISBN 0-7808-0097-4. page 481
- "Inruders Foundation: Budd Hopkins UFO Abduction Research Foundation". Archived from the original on January 8, 2008. Retrieved February 10, 2008.
- "Bio: Linda Moulton Howe". Nexus Magazine. Archived from the original on March 7, 2008. Retrieved February 10, 2008.
- "The J. Allen Hynek for UFO Studies". Retrieved February 10, 2008. Cite error: Invalid
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- Ronald Story, ed., The Encyclopedia of Extraterrestrial Encounters, (New York: New American Library, 2001), s.v. "Morris K. Jessup," pp. 276.
- Jerome Clark, The UFO Book: Encyclopedia of the Extraterrestrial. Visible Ink, 1998. ISBN 1-57859-029-9
- "UFORC.com NEWS SERVICE: KLAS-TV Reporter – George Knapp to Give Keynote Banquet Speech at 4th UFO Crash Retrieval Conference". Archived from the original on March 7, 2008. Retrieved January 1, 2008.
- "Official web site: Bob Lazar". Retrieved February 10, 2008.
- "Dr. Bruce Maaccabee Research Website". Archived from the original on November 8, 2008. Retrieved August 24, 2008.
- "The truth is way out there". Dallas Observer. July 6, 2000. Archived from the original on August 23, 2000.
- Martin, Riley; Tan. The Coming of Tan. Historicity Productions. Archived from the original on December 11, 2007. Retrieved January 1, 2008.
- "The John E Mack Institute". Retrieved August 24, 2008.
- Greenwell, J. Richard, "Menzel, Donald H[oward]" pp. 229–230 in The Encyclopedia of UFOs," Ronald Story, editor; Garden City: Doubleday & Company, Inc, 1980, ISBN 0-385-13677-3
- Moseley, James W.; Pflock, Karl T. (2002). "Shockingly Close to the Truth!: Confessions of a Grave-Robbing Ufologist". Prometheus Books. ISBN 1-57392-991-3.
- Noory; Birnes (2006). Worker in the Light: Unlock Your Five Senses And Liberate Your Limitless Potential. New York: Forge. ISBN 0-7653-1087-2.
- Watch the Skies! A Chronicle of the Flying Saucer Myth, 1994. Smithsonian Institution Press. ISBN 1-56098-343-4
- The Roswell Encyclopedia, 2000, Collins Press, ISBN 0-380-79853-0
- "Nick Redfern Official site". Archived from the original on October 1, 2008. Retrieved August 24, 2008.
- Diana Palmer Hoyt, "UFOCRITIQUE: UFOs, Social Intelligence and the Condon Committee"; Master's Thesis, Virginia Polytechnic Institute, 2000 read it online
- Rutledge, Harley D. Project Identification: The first Scientific Study of UFO Phenomena. Prentice-Hall 1981 ISBN 0-13-730713-6
- "The Debunker's Domain: Robert Sheaffer- Skeptical to the Max". Retrieved August 24, 2008.
- "Whitley Strieber's "Unknown Country"". Retrieved January 1, 2008.
- "The CUFON Inteerview of Michael D. Swords, PhD". Retrieved August 24, 2008.
- Five Arguments Against the Extraterrestrial Origin of Unidentified Flying Objects Archived September 20, 2008, at the Wayback Machine. – Jacques Vallée, PhD