Morgan appeared in Ring of Fire during its Buffalo world premiere. However, in the period between the end of that run on October 9 and the beginning of the show's February 8 Broadway start, she underwent surgery for an unspecified condition. Recuperation was needed and therefore Morgan did not begin performances at the Ethel Barrymore Theatre with the rest of the cast. During her absence, understudy Melanie Vaughan went on in her place.