Harl Vincent (October 19, 1893–May 5, 1968) was the publication name of Harold Vincent Schoepflin, an American mechanical engineer and science fiction author. He was published regularly in science fiction "pulp"-quality magazines.
Vincent was born in Buffalo, New York during 1893. He married Ruth Hoff, and they had two children, a son and a daughter. Vincent worked as a mechanical engineer for Westinghouse, specializing in the installation and testing of large electrical apparatus. Later he was employed as a sales engineer.
Vincent’s writing career began after he began reading Hugo Gernsback’s early science fiction magazine Amazing Stories. Vincent’s first published story, “The Golden Girl of Munan”, was published in the June 1928 issue of the magazine Amazing Stories. During the next fourteen years, Vincent published more than seventy science fiction stories. Although most of his work appeared in the early science fiction magazines, he published twice in the general fiction pulp magazine Argosy.
Although he ceased publishing during the early 1940s, Vincent remained involved with science fiction. After relocating to Los Angeles, Vincent joined the Los Angeles Science Fantasy Society and the Count Dracula Society, as well as attending local science fiction conventions. Vincent resumed writing late in life, publishing the novel The Doomsday Planet during 1966 and the story “Invader” in the September 1967 issue of If.
Vincent died in Los Angeles on May 5, 1968 of emphysema and pneumonia complications.
“The Golden Girl of Munan”, Amazing Stories, June 1928. Reprinted in Rainbow Fantasia, eds. Forrest J. Ackerman and Anne Hardin; Sense of Wonder Press, 2001.
"The War of the Planets", Amazing Stories, January 1929.
"When the Comet Returned", Amazing Stories, April 1933.
"Lost City of Mars", Astounding Stories, February 1934.
Prowler
"Prowler of the Wastelands", Astounding Stories, April 1935. Reprinted in Strange Signposts, eds. Roger Elwood and Sam Moskowitz; Holt, Rinehart and Winston, 1966.
"Return of the Prowler", Astounding Science-Fiction, November 1938.
Non series
"The Ambassador from Mars", Amazing Stories, September 1928.
"The Seventh Generation", Amazing Stories Quarterly, Winter 1929.
"Barton's Island", Amazing Stories, August 1929.
"The Yellow Air-Peril", Air Wonder Stories, September 1929.
"Through the Air Tunnel", Air Wonder Stories, October 1929.
"Microcosmic Buccaneers", Amazing Stories, November 1929.
"The Colloidal Menace", Amazing Stories, December 1929.
"Old Crompton's Secret", Astounding Stories of Super-Science, February 1930.
"Before the Asteroids", Science Wonder Stories, March 1930.
"The Terror of Air-Level Six", Astounding Stories of Super-Science, July 1930.
"Silver Dome", Astounding Stories of Super-Science, August 1930.
"Free Energy", Amazing Stories, September 1930.
"Tanks Under the Sea", Amazing Stories, January 1931.
"Terrors Unseen", Astounding Stories, March 1931.
"Invisible Ships", Amazing Stories Quarterly, Spring 1931.
"Too Many Boards", Amazing Stories, April 1931.
"Beyond the Dark Nebula", Argosy, April 4, 1931.
"The Moon Weed", Astounding Stories, August 1931.
"The Copper-Clad World", Astounding Stories, September 1931.
“Red Twilight”, Argosy, September 13 - 27, 1931. Reprinted in Red Twilight/World's End; Starmont, 1991.
"A Matter of Ethics", Amazing Stories, October 1931.
"Sky Cops" (with Charles Roy Cox), Amazing Stories, December 1931.
"Once in a Blue Moon", Amazing Stories Quarterly, Winter 1932. Reprinted in Rainbow Fantasia.
"Vulcan's Workshop", Astounding Stories, June 1932.
"Thia of the Drylands", Amazing Stories, July 1932.
"Roadways of Mars", Amazing Stories, December 1932.
"Wanderer of Infinity", Astounding Stories, March 1933. Reprinted in The Pulps: Fifty Years of American Pop Culture, ed. Tony Goodstone; Chelsea House, 1976.
"Cavern of Thunders", Amazing Stories, July 1933.
"Whisper of Death", Amazing Stories, November 1933.
"Telegraph Plateau", Astounding Stories, November 1933.
"Master of Dreams", Amazing Stories, January 1934.
"Cat's Eye", Amazing Stories, April 1934.
“Rex” Astounding Stories, June 1934. Reprinted in The Coming of the Robots, ed. Sam Moskowitz; Collier Books, 1963, and Machines that Think, eds. Isaac Asimov, Patricia S. Warrick, and Martin H. Greenberg; Holt, Rinehart and Winston, January 1984.
"Synthetic", Marvel Tales, July/August 1934.
"The Barrier", Amazing Stories, September 1934.
"Cosmic Rhythm", Astounding Stories, October 1934.
"Energy", Astounding Stories, January 1935.
"Valley of the Rukh", Amazing Stories, February 1935.
"The Plane Compass", Astounding Stories, June 1935.
"Parasite", Amazing Stories, July 1935.
"The Challenge from Beyond" (with Stanley G. Weinbaum, Donald Wandrei, E. E. Smith, and Murray Leinster), Fantasy Magazine, September 1935.
"Prince Deru Returns", Amazing Stories, December 1938.
