In my chronology of cog. sci. and literary theory (PDF here) I list Chomsky's Syntactic Structures, Roland Barthes' Mythologies, and Fry's Anatomy of Criticism from 1957 as well. I note as well that Norbert Weiner's Cybernetics was published almost a decade earlier, in 1948. Warren Weaver's memo, "Translation", was published in 1949; it introduced the idea of machine translation.
Consider the intellectual history crudely indicated here: