In 1915 she joined the Chicago Opera for a year, and in 1916 she performed in Montreal, in Gillette de Narbonne. She stayed in Montreal, and she was a member of the Canadian Operetta Society from 1923. Maubourg taught voice students in Montreal, counting among her students Pierrette Alarie, Fleurette Beauchamp-Huppé, Estelle Mauffette, and Monique Leyrac. Film appearances by Maubourg included a role in Le Pére Chopin (1945). She hosted a program on Radio Canada, and acted in the longrunning radio dramas La Pension Velder (1938–1942) and Métropole (1943–1956).
