The Magazine of Fantasy and Science Fiction

"Editors Anthony Boucher and J. Francis McComas had approached Spivak in the mid-1940s about creating a fantasy companion to Spivak's existing mystery title, Ellery Queen's Mystery Magazine." Lawrence E. Spivak (1900–1994), the publisher of FSF from Fall 1949 to July 1954 (--SFE3), is known best for the American public affairs program "Meet the Press". He founded Mercury Publications in 1937 and departed in 1954. --Wikipedia (and SFE3)