Hildebrand, Alexander Litton, Martin Sherwin, Raymond J. Snyder, Theodore A., Jr.
Sierra Club Leaders I, 1950s-1970s
Hildebrand, Alexander. "Sierra Club Leader and Critic: Perspective on Club Growth, Scope, and Tactics, 1950s-1970s." Litton, Martin. "Sierra Club Director and Uncompromising Preservationist, 1950s-1970s." Sherwin, Raymond J. "Conservationist, Judge, and Sierra Club President, 1960s-1970s." Snyder, Theodore A., Jr. "Southeast Conservation Leader and Sierra Club President, 1960s-1970s."
Natural Resources, Land Use, and the Environment Advocacy and Philanthropy
Hildebrand, Alexander, Martin Litton, Raymond J. Sherwin and Jr. Snyder. "Sierra Club Leaders I, 1950s-1970s." Interview by Ann Lage in 1980 and 1981. Oral History Center, The Bancroft Library, University of California, Berkeley, 1982.