Mad (magazine)

(Did you mean the Manchester and District SF Group, a fanzine, or an Australian club?)

Mad Magazine is an American humor magazine founded in 1952.

from Fancyclopedia 2 ca. 1959
A comic book (put out by Entertaining Comics) and then a freely illustrated magazine (published by Wm Gaines), noted for the high level of its satiric and artistic work. This, which lampooned popular movies, TV shows, books, other comics and all like that in a farcical, slapstick, but by no means unintelligent way, became a fannish vogue in 1953-54 with the florescence of 7th Fandom. Chief MADmen in our little world were Larry Stark (acknowledged as EC's Number One Fan), DAG, and Bob M Stewart.