Clifford Donald Simak (August 3, 1904 – April 25, 1988) was an American science fiction writer. He was honored by fans with three Hugo Awards and by colleagues with one Nebula Award and was named the third Grand Master by the Science Fiction and Fantasy Writers of America (SFWA) in 1977
Richard Matheson: Prolific Science Fiction And Fantasy Author. One of the foundations of the genre.
Alfred Bester was an American science fiction author, TV and radio scriptwriter, magazine editor and scripter for comic strips and comic books. Though successful in all these fields, he is probably best remembered today for his work as a science fiction author, and as the winner of the first Hugo Award in 1953 for his novel The Demolished Man. Science fiction author Harry Harrison wrote, "Alfred Bester was one of the handful of writers who invented modern science fiction."
Iain Banks: Writer of both literary and science fiction best known for 'The Wasp…
'iain banks: writer of both literary & science fiction best known for "the wasp factory"' - peter guttridge, 2013 [the independent obituary article]
Jack Vance... I first encountered his fiction in the late 1950s and fairly quickly realized he was my favorite writer of science fiction. He was also no slouch at mystery and fantasy. But most notably he was one of the great, distinctive prose stylists of english, although he's never received the critical attention he merits.
Robert Heinlein and his wife on the set of the 1950 movie "Destination Moon". (credit: Heinlein Society) Heinlein was an American science fiction writer. Often called the "dean of science fiction writers", he was one of the most influential and controversial authors of the genre in his time. He set a standard for scientific and engineering plausibility, and helped to raise the genre's standards of literary quality.