| Conservation Roots 1854
Henry David Thoreau
wrote Walden 1856
Frederick Law Olmstead
designed New York City's Central Park 1864
George Perkins Marsh
wrote Man and Nature 1882
J. Sterling Morton
started Arbor Day 1897
John Muir
founded the Sierra Club 1905
Gifford Pinchot
1st Chief of the U.S. Forest Service 1929
Rosalie Edge
founded the Emergency Conservation Committee 1930
Robert Marshall
founded the Wilderness Society 1934
Jay (Ding) Darling
political cartoonist 1949
Aldo Leopold
wrote Sand County Almanac | | Environmental Branches 1962
Rachel Carson
wrote Silent Spring 1968
Paul Ehrlich
wrote The Population Bomb 1969
David Brower
founded Friends of the Earth 1970
Barry Commoner
biologist who reported the death of Lake Erie 1970
Gaylord Nelson
started Earth Day 1971
Marjorie Stoneham Douglas
founded Friends of the Everglades 1972
William O. Douglas
Sup. Court Justice argued that trees have legal standing
1972
Garrett Hardin
wrote The Tragedy of the Commons 1987
Edward Abbey
wrote The Monkey Wrench Gang 1992
E.O. Wilson
wrote The Diversity of Life |
