MLA
Cheyne. Mansion House, Hampton Institute, Hampton, Virginia. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 70. https://digital.library.emory.edu/purl/037hqbzkkq-cor.
APA, 6th edition
C. Mansion House, Hampton Institute, Hampton, Virginia (Box 70) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/037hqbzkkq-cor.
Chicago
Cheyne. “Mansion House, Hampton Institute, Hampton, Virginia.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 70. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/037hqbzkkq-cor.