Charlotte Perkins Gilman (July 3, 1860 August 17, 1935), also known as Charlotte Perkins Stetson, her first married name, was a prominent American humanist, novelist, writer of short stories, poetry and nonfiction, and a lecturer for social reform. She was a utopian feminist and served as a role model for future generations of feminists because of her unorthodox concepts and lifestyle.Philip Francis Nowlan (November 13, 1888 February 1, 1940) was an American science fiction author, best known as the creator of Buck Rogers. Nowlan also wrote several other novellas for the science fiction magazines as well as the posthumously published mystery, The Girl from Nowhere. He died from a stroke at his home in Bala in 1940.Herbert George Wells (21 September 1866 13 August 1946) was an English writer. Prolific in many genres, he wrote dozens of novels, short stories, and works of social commentary, history, satire, biography and autobiography. His work also included two books on recreational war games. Wells is now best remembered for his science fiction novels and is often called the "father of science fiction", along with Jules Verne and the publisher Hugo Gernsback.John Griffith London (January 12, 1876 November 22, 1916) was an American novelist, journalist, and social activist. A pioneer of commercial fiction and American magazines, he was one of the first American authors to become an international celebrity and earn a large fortune from writing. He was also an innovator in the genre that would later become known as science fiction.Nicolas Camille Flammarion (26 February 1842 3 June 1925) was a French astronomer and author. He was a prolific author of more than fifty titles, including popular science works about astronomy, several notable early science fiction novels, and works on psychical research and related topics. He also published the magazine L'Astronomie, starting in 1882. He maintained a private observatory at Juvisy-sur-Orge, France.