MLA
W., E. F. One among Many near Evergreen, Ala. : an African American Baby in a Diaper, with a Pillow. 1907. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/129p2ngf3m-cor.
APA, 6th edition
W., E. F. (1907). One among many near Evergreen, Ala. : an African American baby in a diaper, with a pillow (Box 72) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/129p2ngf3m-cor.
Chicago
W., E. F. “One among Many near Evergreen, Ala. : an African American Baby in a Diaper, with a Pillow.” Postcards. Robert Langmuir African American Photograph Collection, 1907. Box 72. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/129p2ngf3m-cor.