MLA
Spencer, Thomas. Portrait of Laura Wesson of High Point, North Carolina Who Contracted and Died from Smallpox after Caring for Sick Confederate Soldiers. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 15, Folder 5. https://digital.library.emory.edu/purl/689d51c6gs-cor.
APA, 6th edition
Spencer, T. Portrait of Laura Wesson of High Point, North Carolina who contracted and died from Smallpox after caring for sick Confederate soldiers (Box 15, Folder 5) [Drawings (visual works)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/689d51c6gs-cor.
Chicago
Spencer, Thomas. “Portrait of Laura Wesson of High Point, North Carolina Who Contracted and Died from Smallpox after Caring for Sick Confederate Soldiers.” Drawings (visual works). Civil War Collection, n.d. Box 15, Folder 5. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/689d51c6gs-cor.