F

from Fancyclopedia 2 ca. 1959

The pseudo middle initial of Speer. F is otherwise the most important initial in fandom, beginning as it does such words as fantasy, fan, FooFoo, future, fiction, feud — well, read on and see for yourself.

from Fancyclopedia 1 ca. 1944

The pseudo middle initial of Speer, pronounced foo sometimes, maybe signifying "Fascist Speer", and maybe just intended to head people off before he created John A Bristol; by analogy with Forry the "J", the "F" or "F" is a nickname for Juffus. F is otherwise the most important initial in fandom, beginning as it does such words as fantasy, fan, FooFoo, fonepole, fotografy, file, future, fiction, feuds, —well, read on and see for yourself.