She sang with the Metropolitan Opera in New York from 1909 to 1914, taught voice in Montreal, and was heard in Canadian radio dramas in the 1930s and 1940s.
Maubourg, a mezzo-soprano, began her opera career at the Théâtre de la Monnaie in 1897.
She was also in the American premieres of Le donne curiose in 1912 and Boris Gudonov in 1913, both under Toscanini's baton.
[6] Faust, Tales of Hoffmann, Coppélia, Falstaff,[4] Manon Lescaut, Otello, La traviata, and Rigoletto.
She married her first husband, French opera singer Claude Marie Bede Benedict, in 1911.