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|Born||October 18, 1922|
|Died||January 1, 2007 (aged 84)|
|Occupation||Scientist, chemical engineer|
|Known for||The Manhattan Project, Ufology|
Education and early career
A native of New York City, Davidson received his B.S. (1943), M.S. (1947) and Ph.D. (1951) in chemical engineering from Columbia University's School of Engineering and Applied Science. He had selected this career at the age of 13 while studying at Stuyvesant High School. During his graduate studies, he was personally selected by future SEAS dean John R. Dunning to join the Manhattan Project, the US atomic bomb development program. After an assignment at the Oak Ridge National Laboratory in Tennessee, he moved his family to Los Alamos, New Mexico, where he eventually became an engineering design supervisor for one of the atomic weapons then under development. He then accepted assignments at the Atomic Energy Commission and the Department of Defense at The Pentagon before moving into the private sector.
In the mid-1950s, he joined the Nuclear Development Corporation of America in White Plains, New York, entering the emerging field of computer technology and development. Following stints in management at several large technology companies including Union Carbide, Teleregister, Western Union, General Precision Laboratories, and IBM (where he was Manager of Advanced Applications Development), he became an independent consultant, working for both government clients including Oak Ridge National Laboratories and commercial clients including Mini-Computer Systems of Elmsford, New York.
On the side, he formed his own technology consulting and design company (Metroprocessing Corporation of America) to explore and exploit the emerging technology of touch-tone dialing (now used for push-button telephones). His goal was to make Metroprocessing the single source of information on the application of the twelve button touch tone telephone to private companies and public agencies.
In the mid-to-late 1950s, Davidson volunteered at the Civil Defense Filter Center in White Plains, helping track and identify aircraft flying over the New York metropolitan area. He devoted much of his free time to the study of Unidentified Flying Objects (UFOs). He convinced a Congressional committee to force the Air Force to permit him to publish and distribute, in its entirety, the Air Force's Project Blue Book Special Report No. 14, the primary source book on the Air Force’s findings related to UFO’s.
Davidson firmly believed that the objects reported to be extraterrestrial spacecraft were, in fact, experimental aircraft developed by the Air Force or CIA. On June 29, 2018, Davidson's son, Edward Davidson, found an article  containing a photograph clearly showing two "saucers" in front of a hangar and surrounded by workers, two small planes and a few trucks. In the photo, the left side of the smaller "saucer" is clearly marked "USAF". The larger "saucer" has what appears to be "USAF" also but is not as clearly visible..
Davidson died in White Plains Hospital on January 1, 2007. His ashes are buried in White Plains, New York, He was survived by his wife, Doris, his three children (Ed, Carole, and Martha), his two granddaughters (Leah and Rachel), and his three great-grandsons (Alex, Wesley, and Nathan) and great-granddaughter (Maddie).
- Local newspaper in White Plains, New York - Obituary on January 7, 2007