MLA
Chickering, Elmer. Marion Scott. 1848. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 2, Folder 16. https://digital.library.emory.edu/purl/706g1jwvb9-cor.
APA, 6th edition
Chickering, E. (1848). Marion Scott (Box 2, Folder 16) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/706g1jwvb9-cor.
Chicago
Chickering, Elmer. “Marion Scott.” Card photographs (photographs). William H. Scott Family Papers, 1848-1982, 1848. Box 2, Folder 16. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/706g1jwvb9-cor.