She received the 1953 Child Study Association of America's Children's Book Award for In a Mirror, Newbery Honors in 1962 for Belling the Tiger and 1966 for The Noonday Friends, and her entire body of work was awarded the George G. Stone Recognition of Merit in 1982.
Although most of Stolz's works are fiction books, she made a few contributions to magazines such as Cosmopolitan, Ladies' Home Journal, and Seventeen.
Under doctor Thomas C. Jaleski's care, her disabling symptoms resolved and in 1965, she married Dr.
[2] To Tell Your Love brought Ms. Stolz into the stable of children's book editor Ursula Nordstrom.
Mary Stolz admired Ursula Nordstrom, describing her as "a great editor...she reads a manuscript lovingly, but firmly, and I trust her judgement absolutely.