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- Vint, Thomas C., Chief, NPS Landscape Architecture Division. "Statement Concerning Road Development in the High Sierra section of Yosemite National Park." Typed MSS, 1 November 1948. Yosemite Research Library.
LETTERS AND MEMORANDA
- Adams, Ansel to Harold Bradley, Richard Leonard and David Brower, 27 July 1957, in Ansel Adams: Letters and Images, 1916-1984 (Boston: Little, Brown & Company, 1988).
- Colby, William E., Big Sur, California to Keith Trexler, Yosemite National Park, 17 May 1961. Yosemite Research Library.
- Crocker, Mary Hall, Crocker's Station, to H.C. Benson, Acting Superintendent, 28 September 1907, Yosemite Research Library.
- Huber, Walter L., Yosemite National Park Board of Expert Advisors, to Conrad L. Wirth, National Park Service Director, 4 June 1956. Yosemite Research Library.
- Merriam, Lawrence E., Director, National Park Service Region IV, to John C. Preston, Yosemite National Park Superintendent, 14 October 1960.
- Preston, John C., Yosemite National Park Superintendent, to Lawrence C. Merriam, Director, National Park Service Region IV, 29 September 1960.
