 He continued to perform in operas as well in 1911-1912 at Hammerstein's London Opera House, portraying Alfredo in Verdi's "La Traviata", Arnold Melchtal in Gioachino Rossini's "William Tell", the Duke of Mantua, Edgardo in Gaetano Donizetti's "Lucia di Lammermoor", Ferrando in Donizetti's "La favorite", Jean Grenicheux in Robert Planquette's "Les cloches de Corneville", Romeo in Gounod's "Roméo et Juliette", and the title role in Charles Gounod's "Faust".Harrold was one of the leading tenors in the city of Chicago from 1912–1922.He sang with the Chicago Grand Opera Company (1912–1913), the Chicago Opera Association (1916–1919), and the Chicago Civic Opera (1922).