MLA
Confederate Soldier William Thomas Overby of Mosby's Rangers. 1864. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 17, Folder 8. https://digital.library.emory.edu/purl/7440rxwfh3-cor.
APA, 6th edition
Confederate soldier William Thomas Overby of Mosby's Rangers (Box 17, Folder 8). (1864). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7440rxwfh3-cor.
Chicago
“Confederate Soldier William Thomas Overby of Mosby's Rangers.” Black-and-white photographs. Civil War Collection, 1864. Box 17, Folder 8. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7440rxwfh3-cor.