Alice Geraldine Farrar was an American lyric soprano who could also sing dramatic roles. She was noted for her beauty, acting ability, and "the intimate timbre of her voice." In the 1910s, she also found success as an actress in silent films. She had a large following among young women, who were nicknamed "Gerry-flappers".

Francesco Graziani was an Italian baritone and voice teacher. Graziani has been called the first modern baritone because his vocal attributes were well suited to the high-lying operatic parts composed by Giuseppe Verdi, with whom he worked.