Houghton Mifflin Harcourt
Harcourt: Biographies: John Muir 1838 1914
Easy to understand biography of John Muir (1838-1914 CE), featuring a timeline and pictures of National Parks he helped to create.
Other
Sierra Club: John Muir: A Brief Biography
This resource provides biographical information about John Muir.
Curated OER
Portrait of John Muir
This site provides a biography to John Muir. It also includes links to further information.