MLA
Spencer, Thomas. House in Gordon, Georgia Here One Confederate Soldier Held up a Company of Union Soldiers for Several Hours. 1955. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 15, Folder 2. https://digital.library.emory.edu/purl/549g4f4rwp-cor.
APA, 6th edition
Spencer, T. (1955). House in Gordon, Georgia here one Confederate soldier held up a company of Union soldiers for several hours (Box 15, Folder 2) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/549g4f4rwp-cor.
Chicago
Spencer, Thomas. “House in Gordon, Georgia Here One Confederate Soldier Held up a Company of Union Soldiers for Several Hours.” Black-and-white photographs. Civil War Collection, 1955. Box 15, Folder 2. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/549g4f4rwp-cor.