Names
- Mid-Century Conference on Resources for the Future (Washington, D.C. : 1953)1
- Moore, Barrington1
- Moore, Barrington, 1913-2005.1
- National Popular Government League.1
- Nelson, DeWitt, 1901-1
- Organization for Tropical Studies.1
- Pack, Charles Lathrop, 1857-1937.1
- Pinchot Institute for Conservation Studies.1
- Pinchot, Gifford, 1865-1946.1
- Pomeroy, Kenneth Brownridge, 1907-1
- Rockefeller, Laurance S., 1910-1
- Rockefeller, Laurance Spelman.1
- Roosevelt, Nicholas, 1893-1
- Roosevelt, Nicholas, 1893-1982.1
- Sargent, Francis1
- Sargent, Francis.1
- Save-the-Redwoods League1
- Save-the-Redwoods League.1
- Schmitz, Henry, 1892-1965.1
- Sierra Club1