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John Muir - Wikipedia
John Muir | Biography, Sierra Club, Racism, National Parks, Legacy ...
Who Was John Muir? - John Muir National Historic Site (U.S.
John Muir - Quotes, Books & Sierra Club - Biography
John Muir | Saving Earth - Encyclopedia Britannica
John Muir, Nature's Witness | National Endowment for the …
John Muir - U.S. National Park Service
John Muir - Yosemite National Park (U.S. National Park Service)
John Muir: Father of our national parks
Introduction to John Muir - John Muir Exhibit - Sierra Club