The term "extraterrestrial" entered common usage as a noun for alien life after L. Sprague de Camp employed it in the May 1939 issue of Astounding Science Fiction. This innovation reflected a career defined by an analytical approach to literature, during which he wrote over 100 books across six decades while moving through diverse professional roles as an engineer, historian, and military officer.
Technical Foundations and Early Career
Before achieving prominence as a novelist, de Camp pursued a rigorous scientific education. He earned a Bachelor of Science in aeronautical engineering from the California Institute of Technology in 1930 and a Master of Science from the Stevens Institute of Technology in 1933. His early professional life involved work as a surveyor and patent expert. By 1937, he was serving as the principal of the School of Inventing and Patenting in Scranton, Pennsylvania, an endeavor that preceded the publication of his first book, Inventions and Their Management, later that year.
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De Camp maintained a materialist worldview that deeply influenced his output as a science fiction and fantasy writer. He frequently acted as a corrective voice within the genre, often feeling compelled to challenge what he viewed as logical inconsistencies in the works of his contemporaries. In his novel Lest Darkness Fall, he presented a rationalized approach to time travel, contrasting sharply with the conventions seen in Mark Twain's earlier writing. His collaborations with Fletcher Pratt, such as the Harold Shea stories, applied rigorous internal logic to systems of magic, grounding fantasy elements in recognizable cultural and technological frameworks.
Military Service and Later Years
During World War II, de Camp contributed to the war effort as a researcher at the Philadelphia Naval Yard, serving alongside Isaac Asimov and Robert A. Heinlein. He eventually attained the rank of lieutenant commander as a reserve officer in the U.S. Navy. His life was also marked by long-standing memberships in intellectual circles, including the Trap Door Spiders in New York City and the Swordsmen and Sorcerers' Guild of America. After decades residing in Villanova, Pennsylvania, he relocated to Plano, Texas, in 1989. He died there on November 6, 2000, and was subsequently inurned at Arlington National Cemetery.
Fast facts
- Born: 1907
- Died: 2000, Plano
- Education: California Institute of Technology; Stevens Institute of Technology
- Military rank: lieutenant commander
- Major awards: Damon Knight Memorial Grand Master Award (1979); Hugo Award (1997)
- Notable coinage: Extraterrestrial (as a noun), E.T.
Questions readers ask
What was de Camp's educational background?
He was an aeronautical engineer, holding degrees from the California Institute of Technology and the Stevens Institute of Technology.
Where is L. Sprague de Camp buried?
He is inurned at Arlington National Cemetery in Virginia.
Did de Camp collaborate on his writing?
Yes, he frequently collaborated with his wife, Catherine Crook, and writers such as Fletcher Pratt.
Achievements
- Damon Knight Memorial Grand Master Award — 1979
- Hugo Award for Best Related Work — 1997
- Genres: speculative fiction
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