• 2 Videos, Slides, Films

• 1 Conservationists
• 1 Ecologists
• 1 Environmental ethics
• 1 Environmentalism
• 1 Human rights workers
• 1 Influence
• 1 Leopold, Aldo, 1886-1948
• 1 Naturalists
• 1 Nature conservation
• 1 Politicians
• 1 Politics and government
• 1 Presidents
• 1 Presidents' spouses
• 1 Roosevelt, Eleanor, 1884-1962
• 1 Roosevelt, Franklin D. (Franklin Delano), 1882-1945
• 1 Roosevelt, Theodore, 1858-1919
• 1 Social conditions

• 1 Aldo Leopold Foundation
• 1 Arkin, Adam
• 1 Barnes, Paul, 1951-
• 1 Baucom, Pam Tubridy
• 1 Botstein, Sarah, 1972-
• 1 Brinkley, Alan
• 1 Burns, Ken, 1953-
• 1 Carradine, Keith, 1949-
• 1 Center for Humans and Nature
• 1 Cieri, David
• 1 Clarkson, Patricia
• 1 Conway, Kevin
• 1 Cooper, John Milton
• 1 Duncan, Dayton
• 1 Dunfey, Julie
• 1 Dunsky, Ann
• 1 Dunsky, Steve
• 1 Early, Gerald Lyn
• 1 Ewers, Erik
• 1 Florentine Films
• 1 Giamatti, Paul
• 1 Goodwin, Doris Kearns
• 1 Harris, Ed, 1950-
• 1 Herrmann, Edward, 1943-2014

• 2 English
• 1 Spanish

• 2 United States
• 1 Estados Unidos
• 1 Wisconsin

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