MLA
Spencer, Thomas. House Used as the Headquarters for Confederate General Joseph Johnston during the Battle of New Hope. 1940. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 15, Folder 2. https://digital.library.emory.edu/purl/97634tmqhw-cor.
APA, 6th edition
Spencer, T. (1940). House used as the headquarters for Confederate general Joseph Johnston during the Battle of New Hope (Box 15, Folder 2) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/97634tmqhw-cor.
Chicago
Spencer, Thomas. “House Used as the Headquarters for Confederate General Joseph Johnston during the Battle of New Hope.” Black-and-white photographs. Civil War Collection, 1940. Box 15, Folder 2. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/97634tmqhw-cor.