Writing as: Christopher Anvil
According to Wikipedia: "Crosby was born in Norwich, Connecticut, the only child of Harry Clifton Crosby and Rose Glasbrenner. After serving as a pilot with the U.S. military, he began publishing science fiction with the story "Cinderella, Inc." in the December 1952 issue of the magazine Imagination. By 1956, he had adopted his pseudonym Christopher Anvil and his science-fiction work was being published in Astounding. He went on to a long and successful career in the field.
His stories usually deal with characters in different human government organizations, dealing with adventures, gadgetry, and subterfuge both internal and external. His military background enabled him to bring a certain realism to his portrayal of action and intrigue, which counterpointed the more fantastical elements of his stories.
One of Anvil's best-known short stories is "Pandora's Planet", which appeared first in Astounding in September 1956, and has since been reprinted several times, including an appearance in the first volume of Anvil's works published in hardcover by Baen's Books, Pandora's Legions. It has also been "fixed-up" into a full-length novel.
Anvil's repeated appearances in Astounding/Analog in the 1950s and '60s were due in part to three factors. First was his ability to write stories which fitted with one of Astounding editor John W. Campbell's preferred approaches to plotting: alien opponents with superior firepower losing out to the superior intelligence or indomitable will of humans. Secondly, his stories are nearly always humorous throughout, and the humour is well done. Finally was his characterization and manner of story crafting, where his protagonists slid from disaster to disaster with the best of intentions, and through exercise of fast thinking, managed to snatch victory somehow from the jaws of defeat.
His stories became a perennial favorite with readers, and then in 1966... "he hit a winning streak in the late 1960s in a series which seemed straight out of Star Trek ... The Interstellar Patrol". The bulk of Anvil's published writing consists of short stories, but these can be read in sequence according to the in-world timeline, as is now arranged in the two collections of The Interstellar Patrol."