Dr. Mattie Moss Clark was an influential American gospel music composer and choir director, known for her significant contributions to the genre. Born on March 26, 1925, in Selma, Alabama, she became a prominent figure in the Church of God in Christ (COGIC) and was instrumental in developing the Gospel Music Workshop of America. As the mother of the famous singing group The Clark Sisters, Dr. Clark played a vital role in shaping their musical careers. She was recognized for her innovative arrangements and ability to blend traditional gospel with contemporary styles, leaving a lasting impact on gospel music.