University of the Pacific—John Muir Papers
The University of the Pacific holds the John Muir Papers, a vast collection of his writings, journals, sketches, and a large collection of John Muir photographs.
John Muir National Historic Site
The National Park Service’s John Muir National Historic Site has many photos of Muir on its website.
California Faces: Selections from The Bancroft Library Portrait Collection
The Online Archive of California offers online access to a special collection called California Faces. Scroll down the list of names, or enter ‘John Muir’ in the search box.
Library of Congress—Prints and Photographs Online Catalog
Contains digital images representing a rich cross-section of still pictures. The Library of Congress offers broad public access to these materials as a contribution to education and scholarship. Enter ‘John Muir’ in the search box. Note there are downloadable files of various formats.
Calisphere is an online gateway to collections of the University of California Libraries. A search for ‘John Muir’ will result in variety of items; select ‘images’ to peruse the photographs.
Wisconsin State Historical Society—Visual Materials
John Muir grew up in the state of Wisconsin and attended the University of Wisconsin in Madison. These archival visual materials document the social, economic, and political history of Wisconsin and the upper Midwest. Enter ‘John Muir’ in the search box (click on the magnifying glass icon), refine the results by item type (photographs).