Roman Jakobson
Russian philologist, pioneer of structural linguistics and phonology. Next to being one of the most significant linguists of the XXth century, he was also influential on literary theory through his involvement with Russian Formalism and the Cercle linguistique de Prague.

Claude Lévi-Strauss
French anthropologist and ethnologist whose work was key in the development of the theory of structuralism and structural anthropology.[4] He held the Chair of Social Anthropology at the Collège de France between 1959 and 1982 and was elected a member of the Académie française in 1973. He received numerous honors from universities and institutions throughout the world and has been called, alongside James George Frazer and Franz Boas,[5] the "father of modern anthropology". (Wikipedia)