Mabel Wheeler Daniels (1880–1972) was an influential American composer and music educator, primarily known for her contributions to choral and vocal music. Although she worked in various genres, her compositions often reflected elements of classical, folk, and sacred music. Daniels is best known for her choral works and art songs, including "The Nightingale," which showcases her lyrical style and ability to blend text and music effectively. She also composed a number of hymn arrangements and pieces for piano. One of her notable achievements was her role in advancing music education; she served as a faculty member at several institutions, including the University of Chicago and the Chicago Musical College. Her impact on music lies in her dedication to both composition and education, inspiring generations of musicians and educators. Daniels was also a member of the American Society of Composers, Authors, and Publishers (ASCAP), which further solidified her influence in the American music scene. Through her works and teaching, Mabel Wheeler Daniels contributed to the development of choral music in the early 20th century, leaving a lasting legacy in the realm of American classical music.