
author
1915–1992
Best known as the pulp-era pen name of Dwight V. Swain, this writer brought fast-moving science fiction to magazine readers in the 1940s. The name is most closely linked to The Time Mirror, a time-bending novella first published in Amazing Stories.

by Clark South
Writing as Clark South, Dwight Vreeland Swain (November 17, 1915 – February 24, 1992) published science fiction during the pulp-magazine era. Reliable genre references identify Clark South as one of Swain’s pen names and connect it especially with three stories published in 1942.
The best-known work under that name is The Time Mirror, originally published in Amazing Stories in December 1942. Later listings from Project Gutenberg and other bibliographic sources also connect the story with Swain under his real name, which helps explain why readers may encounter both Clark South and Dwight V. Swain on different editions.
Beyond this pseudonym, Swain built a wider career as an author, screenwriter, and teacher, and he became especially well known to later generations for his books on writing craft. For readers browsing older science fiction, the Clark South byline offers a glimpse of his early magazine work and his taste for brisk, idea-driven storytelling.