 In 1937, Drummond-Grant became one of D'Oyly Carte's principal sopranos.She began the season as the Plaintiff, Josephine, Patience, Phyllis in "Iolanthe" (sharing the role), the title role in "Princess Ida" and Elsie Maynard in "The Yeomen of the Guard".She was selected to play Aline when "The Sorcerer" was revived in 1938.