"Wayburn, Edgar"@en . "American environmentalist" . "Edgar Wayburn"@en . "1906Z"^^ . . "2010Z"^^ . . "1906-09-17Z"^^ . "Edgar Wayburn (September 17, 1906 \u2013 March 5, 2010) was an environmentalist who was elected president of the Sierra Club five times in the 1960s. One of America's legendary wilderness champions, Dr. Edgar Wayburn was a tenacious and tireless leader of the Sierra Club since the 1940s and perhaps the least-known yet most successful defender of America's natural heritage."@en . . . . . "2010-03-05Z"^^ .