Hariclea Darclée "Roméo et Juliette" (Juliette); Jacques Halévy "La Juive" (Rachèle); Ruggero Leoncavallo "I Pagliacci" (Nedda) – opera interpreted in première for Romania at Bucharest National Theatre in 1903; Ruggero Leoncavallo "Zaza" (Zaza); Luigi Mancinelli "Hero e Leandro" (Hero) – opera composed for her voice and interpreted in prima assoluta at Madrid, in 1897; Pietro Mascagni "Cavalleria rusticana" (Santuzza) – oper interpreted in première for Romania at Bucharest National Theatre in 1891; Pietro Mascagni "L’amico Fritz" (Suzel) – opera interpreted in première for Teatro Della Pergole of Florence in 1891 and for Bucharest National Theatre in 1910; Pietro Mascagni "Iris" (Iris) –
Welsh National Opera supporters in December 1943; at that meeting the name of the proposed organisation was changed to "Welsh National Opera Company". By January 1944 plans were far enough advanced for the company's first rehearsals to be held. Owen recruited a local businessman, W. H. (Bill) Smith (1894–1968), who agreed to serve as business manager. At first doubtful of the company's prospects, Smith became its dominant influence, leading fund-raiser, and chairman for twenty years from 1948. The new company made its debut at the Prince of Wales Theatre, Cardiff on 15 April 1946 with a double bill of "Cavalleria Rusticana" and "Pagliacci".