{"value"=>"<p>The majority of the maps in the Carman collection are manuscript maps that convey firsthand knowledge of troop movement at Civil War battles. One of the projects that Carman oversaw was the assembling of a set of fourteen maps for publication as the \"Map of the Battlefield of Antietam\" (later renamed \"Atlas of the Battle of Antietam). It's likely many of the manuscript maps from Antietam in the series were collected during the process of compiling information for these volumes.</p>"}