She was born Jacqueline Beaugé in and was educated at the Institution Notre-Dame-de-Lourdes there. She entered a convent at Kenscoff but left for health reasons. She then trained as a teacher at Notre-Dame-de-Lourdes, graduating in 1952. She taught at Édmée-Rey school until 1953, then at the Lycée Pétion in Port-au-Prince until 1969 and at the Collège Roger Anglade from 1971 to 1975. After she married Jacques V. Rosier, she left Haiti and settled in Canada. She continued her studies at Algonquin College, at the Université du Québec à Hull and at Ottawa University, earning a master's degree in French literature. She then taught school in Ottawa until her retirement in 2004.