MLA
Spencer, Thomas. Photographic Portrait of the Two Daughters of Robert Saxon Whose Farm near Adairsville, Georgia Was Destroyed by Union Artillery during the Civil War. 1940. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 17, Folder 17. https://digital.library.emory.edu/purl/0752fqz72t-cor.
APA, 6th edition
Spencer, T. (1940). Photographic portrait of the two daughters of Robert Saxon whose farm near Adairsville, Georgia was destroyed by Union artillery during the Civil War (Box 17, Folder 17) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0752fqz72t-cor.
Chicago
Spencer, Thomas. “Photographic Portrait of the Two Daughters of Robert Saxon Whose Farm near Adairsville, Georgia Was Destroyed by Union Artillery during the Civil War.” Black-and-white photographs. Civil War Collection, 1940. Box 17, Folder 17. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0752fqz72t-cor.