| Marcus Aurelius Root George Caleb Bingham's "Lighter Relieving a Steamboat Aground" 1847-1849 (ca) Daguerreotype, 1/2 plate Nelson-Atkins Museum of Art Gift of the Hall Family Foundation, Object number: 2005.37.77 LL/95625 Nancy Rash, "George Caleb Bingham's Lighter Relieving A Steamboat Aground," Smithsonian Studies in American Art 2:2 (Spring 1988): 17-31.
David and Charlotte Gale, "A Study and Catalog of 19th Century Photographic Tokens," Photographic Historian 6:2 (Summer 1985): 14-30
"Obituary: Marcus A. Root," Photographic Times and American Photographer 18:345 (April 27, 1888): 195
"Fortunes and Misfortunes of an Artist," Scientific American (February 8, 1862): 87
"Obituary," Philadelphia Photographer 25:321 (May 5, 1888): 284-85.
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