Jennison, Harry Milliken, and Stanley A. Cain. Botany Department Images of the Smoky Mountains, 1931-1946 In Botany Department Images of the Smoky Mountains. University of Tennessee Libraries, Special Collections , 1939.

Jennison, Harry Milliken. "Flora of the Great Smokies." Journal of the Tennessee Academy of Science 14 (1939): 266-298.

Jennison, Harry Milliken. "A Sketch of the Flora of the Great Smoky Mountains National Park." Journal of the Tennessee Academy of Science 14, no. 3 (1939): 266-296.

Jennison, Harry Milliken. "Azalea of the Great Smokies." The Regional Review 1, no. 2 (1938): 18-21.

Jennison, Harry Milliken. Reports on Wildlife Activities. United States National Park Service, 1937.

Jennison, Harry Milliken. H. M. Jennison Letter, 1936 April 22 In H. M. Jennison Letter. Knoxville, TN: University of Tennessee Libraries, Special Collections , 1936.

Underwood, Judson K.. A Study of the Cyperaceae of Tennessee. Knoxville, TN: University of Tennessee, 1931.

Jennison, Harry Milliken, and Louis E. Hofferbert. "The Flowers and Birds of the Smokies." Journeys Beautiful: The Travel Magazine 2, no. 10 (1926): 18-19.

Jennison, Harry Milliken, Lexemuel Ray Hesler, and Aaron J. Sharp. Special reports, memoranda, lecture syllabi, radio-script. National Park Service.