Henry David Thoreau George Catlin Lydia Huntley Sigourney Susan Fenimore Cooper Table Rock Album Walt Whitman George Perkins Marsh P.T. Barnum John Muir W.H.H. Murray Frederick Law Olmsted J. Sterling Morton Theodore Roosevelt Mary Austin Nathaniel Southgate Shaler John Burroughs Gifford Pinchot William T. Hornaday Theodore Dreiser Gene Stratton-Porter Henry Beston Benton MacKaye J.N. "Ding" Darling Robert Marshall Don Marquis Caroline Henderson Donald Culross Peattie Robinson Jeffers John Steinbeck
Woody Guthrie Marjory Stoneman Douglas Aldo Leopold Berton Roueché Edwin Way Teale Helen and Scott Nearing Sigurd F. Olson E.B. White Loren Eiseley William O. Douglas Jane Jacobs Rachel Carson Russell Baker Eliot Porter Howard Zahniser Lyndon B. Johnson Kenneth E. Boulding Lynn White Jr. Edward Abbey Paul R. Ehrlich Garrett Hardin Philip K. Dick Colin Fletcher R. Buckminster Fuller Stephanie Mills Gary Snyder Denis Hayes Joseph Lelyveld Joni Mitchell & Marvin Gaye John McPhee Friends of the Earth Wendell Berry Annie Dillard
Carl Anthony & Renée Soule
