MLA
Gurney, J., and Son. Union Officer Elmer Ephraim Ellsworth. Ellsworth Was the First Union Officer to Due in the Civil War. J. Gurney & Son, 1863. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 22, Folder 13. https://digital.library.emory.edu/purl/013mw6mb62-cor.
APA, 6th edition
Gurney, J., & S. (1863). Union officer Elmer Ephraim Ellsworth. Ellsworth was the first Union officer to due in the Civil War (Box 22, Folder 13) [Cartes-de-visite (card photographs)]. J. Gurney & Son; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/013mw6mb62-cor.
Chicago
Gurney, J., and Son. “Union Officer Elmer Ephraim Ellsworth. Ellsworth Was the First Union Officer to Due in the Civil War.” Cartes-de-visite (card photographs). Civil War Collection. New York City, NY: J. Gurney & Son, 1863. Box 22, Folder 13. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/013mw6mb62-cor.