MLA
Spencer, Thomas. Site of Confederate General Joseph E. Johnston's Headquarters near Durham, North Carolina on April 26, 1865. 1940. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 15, Folder 5. https://digital.library.emory.edu/purl/252j6q587b-cor.
APA, 6th edition
Spencer, T. (1940). Site of Confederate general Joseph E. Johnston's headquarters near Durham, North Carolina on April 26, 1865 (Box 15, Folder 5) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/252j6q587b-cor.
Chicago
Spencer, Thomas. “Site of Confederate General Joseph E. Johnston's Headquarters near Durham, North Carolina on April 26, 1865.” Black-and-white photographs. Civil War Collection, 1940. Box 15, Folder 5. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/252j6q587b-cor.