Public domain
Antietam, Maryland. Dead soldiers in ditch on the right wing where Kimball's brigade fought so desperately
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineAntietam, Maryland. Dead soldiers in ditch on the right wing where Kimball's brigade fought so desperately. 1862. Gardner, Alexander. Civil War Glass Negatives, Library of Congress. Public domain.