Wild Life on the Rockies. 1909. 263 pp., illustrated. Houghton, Boston.
The Spell of the Rockies. 1911. 348 pp., illustrated. Houghton, Boston.
In Beaver World. 1913. 223 pp., illustrated. Houghton, Boston.
The Story of a Thousand Year Pine. 1914. 38 pp., illustrated.
Houghton, Boston.
Rocky Mountain Wonderland. 1915. 362 pp., illustrated, map.
Houghton, Boston.
The Story of Scotch. 1916. 63 pp., illustrated. Houghton, Boston.
Your National Parks. 1917. 532 pp., illustrated. Houghton, Boston.
The Grizzly, Our Greatest Wild Animal. 1919. 284 pp., illustrated.
Houghton, Boston.
Adventures of a Nature Guide. 1920. 271 pp., illustrated.
Houghton, Boston.
Waiting in the Wilderness. 1921. 241 pp., illustrated. Houghton, Boston.
Watched by Wild Animals. 1922. 243 pp., illustrated. Houghton, Boston.
Wild Animal Homesteads. 1923. 259 pp., illustrated. Houghton, Boston.
The Rocky Mountain National Park. 1924. 239 pp., illustrated.
Houghton, Boston.
Romance of Geology. 1926. 245 pp., illustrated. Houghton, Boston.
Bird Memories of the Rockies. 1931. 263 pp., illustrated.
Houghton, Boston.
MILLS, JOE. A Mountain Boyhood. 286 pp. 1926. Sears.
QUINNE, VERNON. Beautiful America. 333 pp., illustrated.
Frederick A. Stokes Co., New York City. 1923. Rocky Mountain National
Park on pp. 260-262.
RENSCH, H.E. Historical Background for the Rocky Mountain National Park.
1935. 42 pp. Rocky Mountain Nature Association.
ROLFE, MARY A. Our National Parks. Book One.
1927. 320 pp., illustrated. Benj. H. Sanborn Co., Chicago.