Denver Science Fictioneers

The DSF was a club in Denver, CO which formed in the spring of 1940. Members included Olon Wiggins, Chuck Hansen, Lew Martin, and Roy Hunt. Wiggins was suspected of having created the others as a hoax, since he was the only fan from Denver anyone outside of Denver had heard of.

The DSF dissolved after a half-dozen meetings and the Colorado Fantasy Society was created in the fall of 1940 to put on the Denvention, the 1941 Worldcon, which Wiggins had just won the right to put on at Chicon I.

from Fancyclopedia 1 ca. 1944
A local which included Wiggins, Martin, and Hunt. It soon reorganized as the Colorado Fantasy Society.