A regime change in 1946 forced the family to leave the country, and they settled in Great Neck, outside of New York on Long Island. During the next nine years, Esther held various positions: instructor at the United Nations International Nursery School in Lake Success, teacher and supervisor at Mills College of Education in Manhattan, and director of several nursery schools in Great Neck. She was also a founding member of the United Nations Women’s Guild.
This period was followed, in 1956, by nearly fifty years—the rest of her life—in Paris, where for the first decade she was the Director of the United Nations Nursery School and in time became a spokesperson for and specialist in bilingualism and international nursery schools. She was a member of such organizations as OMEP (World Organization for Early Childhood Education), AFFDU (French Association of University Women), IPA (International Playground Association), AFH (Association France-Haïti), and UCA (UNESCO Community Association). She is the author of seven magazine articles on bilingualism in an international nursery school setting, as well as of two books on her husband’s career: Un Haïtien exceptionnel Maurice Dartigue (1992) and An Outstanding Haitian, Maurice Dartigue (1994). She is the co-author and subject of a third book titled Forging Ahead: Recollections of the Life and Times of Esther Dartigue, issued in 2013. She passed away in Paris in 2003.