Grenier was born in
Gaspé, Quebec, and ordained for the diocese of Gaspé in 1924. He studied philosophy at the
Angelicum in
Rome (1924-1926), and at the major seminary in Gaspé (1926-1927). From 1927-1930 he studied theology at the Angelicum and
Canon law at the
Pontifical Lateran University. He held doctorates in philosophy, theology, and canon law. From 1930 to 1947 he was professor of theology at the seminary of Québec. In 1938 he was
incardinated in the diocese of Québec. He spent a year in
Oklahoma, 1944-1945. He was for many years professor of philosophy at the
Université Laval. ==Work==