I know it's a long-shot, but I think it's worth a try. This is from an article on ABC News:
The names of the two little girls are an enduring mystery, their images found among crumpled bodies on Civil War battlefields. Each is posed primly on chairs, ringlets cascading past the rouged cheeks of one, the other dressed in a frilly hoop dress.
But no one knows the identities of the girls in the photographs, or the stories they might tell. . . . .
But now museum officials are releasing the unidentified images of the two girls, along with six other enigmatic photographs, on the admittedly remote chance someone might recognize a familial resemblance or make a connection to a battlefield where they were found.Here's the entire story:http://abcnews.go.com/US/wireStory/civil-war-photos-sought-solve-mystery-16538850#.T9Zg85j08Wc