Rare Civil War photo of confederate soldier and his slave heading off to war donated to Library of Congress

WASHINGTON, DC - AUGUST 20: Tom Liljenquist, right, shows some of the photographs he has recently donated to the library of Congress to from left, historian Ron Coddington, Senior Catalog Analyst Specialist Karen Chittenden and Public Affairs Specialist Library of Congress Donna Urschel at the Library of Congress August 20, 2014 in Washington, DC. Tom Liljenquist bought the photograph from a relative of Chandler's in order to donate it to the Library of Congress. (Photo by Katherine Frey/The Washington Post via Getty Images)