MLA
Photochrom., C. T. Caddies of Great Southern Hotel, Gulfport, Miss : a Caddie with Two Children Who Was Also a Bodyguard for Jefferson Davis. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 74. https://digital.library.emory.edu/purl/24298sf7pf-cor.
APA, 6th edition
Photochrom., C. T. Caddies of Great Southern Hotel, Gulfport, Miss : a caddie with two children who was also a bodyguard for Jefferson Davis (Box 74) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/24298sf7pf-cor.
Chicago
Photochrom., C. T. “Caddies of Great Southern Hotel, Gulfport, Miss : a Caddie with Two Children Who Was Also a Bodyguard for Jefferson Davis.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 74. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/24298sf7pf-cor.