In his lifetime and for several decades afterward, Alan Dunn held the record as the New Yorker magazine's most prolific cartoonist, having more cartoons published in that magazine than anyone else.
During the flying-saucer craze of the 1950s, Dunn published several cartoons depicting extraterrestrials as little gremlin-like humanoids with pointy heads. Although other cartoonists (notably Charles Addams) also drew cartoons depicting aliens, Dunn was the only cartoonist whose aliens were consistently all members of the same "species".