Harry Harrison has used various pseudonyms for some of his stories; these include Hank Dempsey, Felix Boyd, Wade Kaempfert, Cameron Hall and Philip St. John. He is sometimes credited with stories written under the "Harrison Denmark" name, however that is the pseudonym of Roger Zelazny, not Harry Harrison.
Harry has two children, Todd and Moira.
Harry's mother was a teacher until she married; his father was a printer.
Harry attributes his sense of humor to his father, who was Irish.
Harry's 1966 novel Make Room! Make Room! was the basis for the 1973 movie Soylent Green.
Harry Harrison advocates the use of Esperanto, and often puts it in his novels, especially Stainless Steel Rat and Deathworld series. He learned to speak Esperanto while in the army because he was bored.
Harry Harrison celebrated his 75th birthday by being the Guest of Honor at Mecon in Belfast, Northern Ireland.
Harry appeared as the Author Guest of Honour at the 28th annual Eurocon in Kiev, Ukraine, from April 13 - 16, 2006.
Harry appeared as a guest at the Comic Expo, which was held in Brighton, England, on November 19 and 20, 2005.
On July 22, 2004, Harry was awarded the Inkpot Award for Outstanding Achievement in Science Fiction and Fantasy. This is awarded by the Comic-Con International, and was given at the San Diego Comic Con.
Harry Harrison was inducted into the Science Fiction and Fantasy Hall of Fame in Lawrence, Kansas, on July 9, 2004.
He served in the U.S. Army Air Corps during WWII.
His Astrological sign is Pisces.
He is a science fiction author.
Harry Harrison: I know writers who start a story with no idea how it will end; I would rather die first. I am a firm back-plotter and must know the ending before I begin, then expend writing energy disguising the fact that I always know what is coming next.
Harry Harrison: Writing is a fragile act. When one is pulling language, thoughts, ideas out of thin air, or the turgid subconscious, any disturbance disturbs. ...I know of no serious writer who does not need his solitude, his sitting and thinking time, in addition to his writing time.