The image you've used for this group is really interesting, but I can't quite make it out. What am I looking at? Can you tell me a little more about it?
The image is of Randall Nash who served during the Civil War. An interesting story about him has been posted to the Rediscovering Black History blog on NARA’s web site at https://rediscovering-black-history.blogs.archives.gov/2016/01/21/civil-war-era-tintypes-randall-nash-usct-inf/