MLA
Boynton, John J. A Man with a Beard Wearing a Suit Seated, with His Right Arm over the Back of a Chair Resting on a Table, between the Table and a Balustrade. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 63. https://digital.library.emory.edu/purl/566j0zpcbw-cor.
APA, 6th edition
Boynton, J. J. A man with a beard wearing a suit seated, with his right arm over the back of a chair resting on a table, between the table and a balustrade (Box 63) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/566j0zpcbw-cor.
Chicago
Boynton, John J. “A Man with a Beard Wearing a Suit Seated, with His Right Arm over the Back of a Chair Resting on a Table, between the Table and a Balustrade.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 63. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/566j0zpcbw-cor.