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Jack Parsons

American engineer and chemist
John Whiteside Parsons was an American rocket engineer, chemist, and Thelemite occultist. Associated with the California Institute of Technology, Parsons was one of the principal founders of both the Jet Propulsion Laboratory and the Aerojet... Wikipedia
Born: October 2, 1914, Los Angeles, CA
Died: June 17, 1952 (age 37 years), Pasadena, CA
Spouse: Marjorie Cameron (m. 1946–1952) and Helen Parsons-Smith (m. 1935–1946)
Other names: John Whiteside Parsons