Harlan Ellison: If you don't know anything about this man I suggest you watch Dreams With Sharp Teeth. You will be introduced to the most bad ass sci-fi writer this world has every seen. He is an outlaw. Pure & simple.
Anne Inez McCaffrey (1926 – 2011) was an American-born Irish writer, best known for her Dragonriders of Pern series. During McCaffrey's 46-year career, she won the Hugo Award and was the first female recipient of the Nebula Award. Her book The White Dragon became one of the first science-fiction novels to appear on the New York Times Best Seller list. Read Details - NYTimes.com
John Wyndham was born in Birmingham Warwickshire on July 10th 1903 and passed away on March 11th, 1969. One of Wyndham's more famous well-known book is titled The Chrysalids, a science fiction novel published in 1995.
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