G. C. Edmondson was the working name of science fiction author Garry Edmonson (full name "José Mario Garry Ordoñez Edmondson y Cotton") (October 11, 1922 in Washington state – December 14, 1995 in San Diego, California).
According to the obituary published in Locus Magazine, Edmondson was born in Washington state[1] During World War II he served as a U. S.
[2] Although generally called a science fiction writer, he wrote Westerns using the names Kelly P. Gast, J.
His science fiction career began during 1955 with a story in the magazine Astounding.
He later produced several novels which gained some note for their interest in time travel and Latin America.