Robert Engberg
Robert Engberg
Robert Engberg has studied Muir's life for some thirty years. He is coeditor of John Muir to Yosemite and Beyond and John Muir Summering in the Sierra.
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Robert Engberg has studied Muir's life for some thirty years. He is coeditor of John Muir to Yosemite and Beyond and John Muir Summering in the Sierra.
