Primary Sources
Chase, John A. (ca. 1910). See America First: The Great Northwest Annotated Time Table. Advertisement. Public Broadcasting Service, http://www.pbs.org/nationalparks/history/ep3/3/. Accessed December 4, 2019.
Historic Sites Act (1935). 16 U.S.C. sec 461-467, Stat. 666. National Park Service, https://www.nps.gov/history/local-law/hsact35.htm. Accessed December 4, 2019.
Muir, John (1912). The Yosemite. New York: The Century Co.
National Park Service Organic Act (1916). 16 U.S.C. I 2 3, and 4, 39 Stat. 535. National Park Service, https://www.nps.gov/grba/learn/management/organic-act-of-1916.htm. Accessed December 4, 2019.
No author (circa 1950). “Crowd at Old Faithful Geyser, Yellowstone National Park, circa 1950s.” Public Broadcasting Service, http://www.pbs.org/nationalparks/history/ep6/. Accessed December 19, 2019.
Powell, C. Don (ca. 1938). Grand Canyon National Park, a free government service. Poster: screen, color, 48 x 36 cm. Library of Congress, https://www.loc.gov/item/2007676131/. Accessed December 5, 2019.
Taylor, Frank J. (1929) “Turning America’s Wilderness Into National Parks.” The Sunday Star: pg. 5. Library of Congress, https://chroniclingamerica.loc.gov/lccn/sn83045462/1929-02-24/ed-1/seq-85/#date1=&index=2&rows=20&searchType=advanced&language=&sequence=0&words=Mather+MATHER&proxdistance=5&date2=&ortext=&proxtext=&phrasetext=&andtext=mather&dateFilterType=range&page=1. Accessed December 19, 2019.
Teller, H.S. (1938). “Guide Map of Shenandoah National Park Virginia.” National Park Service, https://www.nps.gov/media/photo/gallery-item.htm?pg=5994917&id=1E646E64-155D-451F-67652A6FC8A96391&gid=20B61590-155D-451F-6786CFBCF8DF232B. Accessed December 19, 2019.
Underwood & Underwood (1903). Theodore Roosevelt and John Muir on Glacier Point, Yosemite Valley, California, in 1903.Photograph: stereograph. Library of Congress, https://www.loc.gov/pictures/resource/ppmsca.36413/.Accessed December 5, 2019.
U.S. Department of the Interior, National Park Service (1941). “Table IV – Visitors to Individual National Parks – 1931-1940.” In Public Use of the National Parks, A Statistical Report: 1904-1941, pp 7. National Park Service, https://irma.nps.gov/DataStore/DownloadFile/455307. Accessed December 4, 2019.
U.S. Geological Survey (1903). Yosemite, CA.Historical Topographic Map Collection, 1906 ed. 1:125000. USGS TopoView, https://ngmdb.usgs.gov/topoview/viewer/#10/37.8407/-119.4729. Accessed December 16, 2019.
U.S. Geological Survey (1956). Yosemite, CA.Historical Topographic Map Collection, 1975 ed. 1:625000. USGS TopoView, https://ngmdb.usgs.gov/topoview/viewer/#10/37.8407/-119.4729. Accessed December 16, 2019.
Yellowstone National Park Protection Act (1872). National Park Service, https://www.nps.gov/yell/learn/management/yellowstoneprotectionact1872.htm. Accessed December 4, 2019.
Secondary Sources
Devereux Butcher, Exploring our National Parks and Monuments, 6th ed. rev. (Boston: Houghton Mifflin, 1969), p.356.
Dilsaver, Larry M., editor. America’s National Park System: The Critical Documents. Lanham, MD: Rowman & Littlefield Publishers, 1994.
Dilsaver, Larry M. and Wyckoff, William. “The Political Geography of the National Parks.” Pacific Historical Review 74, no. 2 (2005): 237-266.
Drury, Newton B. “The National Parks in Wartime.” In America’s National Park System: The Critical Documents, edited by Larry Dilsaver, 167-173. Lanham, MD: Rowman & Littlefield Publishers, 1994.
Foner, Eric. Give Me Liberty!: An American History. New York: W.W. Norton & Company, 2016.
Lambert, Darwin (1979). “Chronology.” In Administrative History of Shenandoah National Park 1924-1976, pg iii. National Park Service, https://www.nps.gov/parkhistory/online_books/shen/admin.pdf. Accessed December 16, 2019.
Library of Congress. “Brief History of the National Parks.” Accessed November 5, 2019. https://www.loc.gov/collections/national-parks-maps/articles-and-essays/brief-history-of-the-national-parks/.
Library of Congress. “Yellowstone, the First National Park.” Accessed November 5, 2019. https://www.loc.gov/collections/national-parks-maps/articles-and-essays/yellowstone-the-first-national-park/.
National Park Service. “About Us.” Last modified October 10, 2019. https://www.nps.gov/aboutus/national-park-system.htm
Ridenour, James M. The National Parks Compromised: Pork Barrel Politics and America’s Treasures. Merrillville, Indiana: ICS BOOKS, 1994.
Rothman, Lily. “The Story Behind Those Gorgeous National Parks Posters From the 1930s.” Last modified April 8, 2016. Time. https://time.com/4282408/national-parks-posters-wpa/.
Runte, Alfred. National Parks: The American Experience, ed. 4. United Kingdom: Taylor Trade Publishing, 2010.
Sierra Club. “John Muir: A Brief Bibliography.” Accessed November 5, 2019. https://vault.sierraclub.org/john_muir_exhibit/life/muir_biography.aspx.
Unrau, Harlan D. and Williss, Frank G. “To Preserve the Nation’s Past: The Growth of Historic Preservation in the National Park Service during the 1930s.” The Public Historian 9, no. 2 (1987): 19-49.
U.S. Department of the Interior, National Park Service (1966). “Table 4 – Number of Visits, By Individual Areas: 1954-1964.” In Public Use of the National Parks, A Statistical Report: 1954-1964, pp 11. National Park Service,https://irma.nps.gov/DataStore/DownloadFile/455317. Accessed December 19, 2019.
Young, Terrence. “A Contradiction in Democratic Government: W.J. Trent, Jr., and the Struggle to Desegregate National Park Campgrounds.” Environmental History 14, no. 4 (2009): 651-682.