 With the aid of Oscar Hammerstein I, he branched out into opera in 1910 as a leading tenor with Hammerstein's opera houses in New York City and Philadelphia.While his career from this point on primarily consisted of opera performances, he periodically returned to operetta and musical theatre throughout his career.He notably created the role of Captain Dick Warrington in the world premiere of Victor Herbert's operetta "Naughty Marietta" in November 1910.