[5] Barbosa pursued studies for seven years at the Gregorian University in Rome, where he earned doctoral degrees in Philosophy and Theology.

[2] Barbosa served as professor of Ethnography and Indigenous Languages at the Pontifical Catholic University of Rio de Janeiro (PUC-Rio).

[2] In 1956, he published the work Curso de tupi antigo: gramática, exercícios, textos (lit.

[6] Basílio de Magalhães [pt], for instance, declared the work constituted a "didactic revolution".

[8] Barbosa died on 5 September 1970, after being hospitalized for two months at Casa de Saúde São José [pt].