Librarian Note: There is more than one author in the Goodreads database with this name. Harry Harrison (born Henry Maxwell Dempsey) was an American science fiction author best known for his character the The Stainless Steel Rat and the novel Make Room! Make Room! (1966), the basis for the film Soylent Green (1973). He was also (with Brian W. Aldiss) co-president of the Birmingham Science Fiction Group. Excerpted from Wikipedia.