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Conservationists

18 people, across 6 fields.

Theodore Roosevelt 1858–1919Presidents26th President known for progressive reforms, conservation efforts, and assertive foreign policy.Rachel Carson 1907–1964Environment, Agriculture & FoodMarine biologist whose book Silent Spring launched the modern environmental movement.Henry David Thoreau 1817–1862Environment, Agriculture & FoodWriter and philosopher whose works on nature, individual conscience, and civil disobedience influenced environmentalism and political protest.John Muir 1838–1914Environment, Agriculture & FoodNaturalist and organizer whose advocacy helped create national parks and the modern wilderness movement.Ansel Adams 1902–1984Visual Arts & DesignLandscape photographer whose Western images and zone system shaped American photographic practice.Frederick Law Olmsted 1822–1903Engineering & ArchitectureLandscape architect who designed Central Park and established public parks as essential American civic infrastructure.John James Audubon 1785–1851Environment, Agriculture & FoodNaturalist and illustrator whose Birds of America shaped American ornithology and the society bearing his name.Aldo Leopold 1887–1948Environment, Agriculture & FoodEcologist whose “land ethic” became foundational to modern environmental thought.E. O. Wilson 1929–2021Science & MathematicsBiologist whose studies of ants, biodiversity, and sociobiology reshaped ecology, evolution, and conservation debate.Norman Borlaug 1914–2009Environment, Agriculture & FoodAgronomist and Nobel Peace Prize laureate whose Green Revolution wheat varieties saved billions from famine.Gifford Pinchot 1865–1946Environment, Agriculture & FoodFirst chief of the U.S. Forest Service and leading advocate of scientific conservation and managed public lands.John Wesley Powell 1834–1902Exploration, Aviation & SpaceGeologist and explorer who led the first documented passage through the Grand Canyon.Marjory Stoneman Douglas 1890–1998Environment, Agriculture & FoodWriter and activist whose advocacy was central to preserving the Florida Everglades as a national ecological treasure.William O. Douglas 1898–1980Law & the JudiciaryLongest-serving Supreme Court justice, noted for expansive civil-liberties jurisprudence and environmental advocacy.Alice Waters b. 1944Environment, Agriculture & FoodChef and activist who popularized farm-to-table dining, seasonal ingredients, and food education in the United States.Gaylord Nelson 1916–2005Environment, Agriculture & FoodSenator and founder of Earth Day who helped make environmental protection a mass political movement.Wendell Berry b. 1934Environment, Agriculture & FoodWriter and farmer whose work connected environmental stewardship, local agriculture, community, and opposition to industrial excess.DBDavid Brower 1912–2000Environment, Agriculture & FoodConservation leader who transformed the Sierra Club and helped build the modern American environmental movement.