Image of an ambulance wagon, photographed on July 22, 1861, the day after the <a href="https://en.wikipedia.org/wiki/First_Battle_of_Bull_Run" class="extiw" title="en:First Battle of Bull Run">First Battle of Bull Run</a>.
Unknown photographer
2013-04-10
<a rel="nofollow" class="external text" href="http://discussions.mnhs.org/collections/2011/07/ambulance-wagon-on-the-bull-run-battlefield-july-22-1861/">Minnesota Historical Society</a>