I'm using this image as a case study for how Flickr's annotation feature might be useful for historians. The original photo is from the Library of Congress and is available at <a href="http://www.loc.gov/pictures/item/cwp2003000602/PP/" rel="nofollow">www.loc.gov/pictures/item/cwp2003000602/PP/</a>. For more on this photo, and how it is posed, see David Lowe and Philip Shiman, “Substitute for a Corpse,” Civil War Times 49, no. 6 (2010): 40-41.