Galle, Fred C.. "Bear Facts on Gregory Bald." Journal American Rhododendron Society 24, no. 4 (1970).

Galle, Fred C.. Azaleas on Gregory Bald, Blount County, Tennessee. Pine Mountain, GA, 1963.

Clark, Mrs. LeRoy. "The Mystery of Gregory Bald." Bulletin of the Garden Club of America (1959): 84-86.