Futurians
A group of science fiction fans founded in 1938 in New York. Its members included Judith Merril, Doris Baumgardt (aka Leslie Perri), Rosalind Cohen, Elise Balter, C.M. Kornbluth, Frederik Pohl, Damon Knight, and Isaac Asimov. Described in detail in Damon Knight's book The Futurians.