Mary T. Martin Sloop (March 9, 1873 – January 13, 1962) was instrumental to the improvement of healthcare and education in the mountains of North Carolina.

In 1953, Sloop published Miracle in the Hills, her autobiography detailing her lifelong efforts in medicine and education reform.

Sloop even changed state law, raising the required attendance age to 16.

Because of the success and growth of the program, Crossnore built a Weaving Room specifically for the crafts program, which was funded by clothes Sloop sold, the Daughters of the American Revolution, and other educational associations and acts.

It was written in conjunction with Legette Blythe and recounts the forty years Sloop and her husband spent fighting for the betterment of the mountain children in Crossnore, North Carolina.

[7] In her later life, Sloop entrusted the care over the Crossnore School with her son, daughter, and son-in-law.