MLA
Saegesser, E. N. A Happy Group, No Cares of Life for This Family. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 74. https://digital.library.emory.edu/purl/713905qfxg-cor.
APA, 6th edition
Saegesser, E. N. A happy group, no cares of life for this family (Box 74) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/713905qfxg-cor.
Chicago
Saegesser, E. N. “A Happy Group, No Cares of Life for This Family.” Photographic 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/713905qfxg-cor.