While camping in Tuolumne Meadows in 1889 with Robert Underwood Johnson, an editor of The Century Magazine, famed naturalist John Muir was inspired to turn his writing efforts toward the preservation and protection of natural spaces. (John Muir above, Robert Underwood Johnson below (from centuryarchives.org)

Robert Underwood Johnson: John Muir’s Preservation Whisperer

Robert Underwood Johnson from centuryarchives.org